GB2586859A - Circulating water supply systems - Google Patents

Circulating water supply systems Download PDF

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Publication number
GB2586859A
GB2586859A GB1912848.7A GB201912848A GB2586859A GB 2586859 A GB2586859 A GB 2586859A GB 201912848 A GB201912848 A GB 201912848A GB 2586859 A GB2586859 A GB 2586859A
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GB
United Kingdom
Prior art keywords
conduit
flow
water supply
return
regulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB1912848.7A
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GB201912848D0 (en
Inventor
Stephen Bridges Maxwell
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Water Kinetics Ltd
Original Assignee
Water Kinetics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Water Kinetics Ltd filed Critical Water Kinetics Ltd
Priority to GB1912848.7A priority Critical patent/GB2586859A/en
Publication of GB201912848D0 publication Critical patent/GB201912848D0/en
Priority to PCT/EP2020/074779 priority patent/WO2021043987A1/en
Publication of GB2586859A publication Critical patent/GB2586859A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0078—Recirculation systems
    • F24D17/0084—Coaxial tubings
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/04—Domestic or like local pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • F16L29/002—Joints with fluid cut-off means joints with taps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0264—Hydraulic balancing valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Flow Control (AREA)

Abstract

A water supply system (1, figure 1) of the circulation type, ideally a branched domestic hot water system, comprises a primary flow circuit (11, figure 1) to which plural secondary flow circuits (21-24, figure 1) are connected. Each secondary circuit has a one or more user points (5, figure 1) such as hot water or mixer taps, a commissioning regulator 7 and a combined pipe structure 14 (e.g. concentric pipes) defining an outflow conduit 16 and a return conduit 15 sharing a common wall. The regulator is connected between the primary circuit and the one or more user points of the respective secondary circuit and includes a pressure balancing valve 75 to close the return conduit, ideally via adjustment of a rotatable vane 756 that cannot fully block the return conduit to balance pressure with the other secondary circuits. An actuator (751-753, figure 4) adjusts and locks the degree of closure. An isolation valve (8, figure 6) may be used with each regulator. A commissioning regulator for a combined pipe system is also claimed.

Description

CIRCULATING WATER SUPPLY SYSTEMS
FIELD CE' THE TIMNTION
5" This inventidn ha's to do With...7.-:.i.k....du1...atihE.,:j. Wats.:.....t: :,,±ip.plis..7.
STOtekE§.,. -5.Hai'.:±16...01,...a.:±1v but n'.7.),t exclusively het. water e.....y....:17.-ellay.is. and ?*,.7.=:...P.....tec4',.e.jji b1).t: not Q...N.el,eelvely f6HH-K. use in RI.J.:1.111.::".i.LoccP.a.51011. o'.1, c..amm.:arcial. buildings hech as hespthls, hhheets, ceiLleges, Ot.fAH:75......4. h...0t.e..q.s, ou:anoyx -i.:::.e....si.clebtiea hbTh.,e'... 8.hA..th'....
like.. Na also th.ake, proposals for novel flew, el....rcult components ''f,,..3...,.c 5...qc.4 s...y.si.r.r...s, 7.;..7,,C.F...G.ROTJNT)....
Th...... 12.....f...e..e.nt pt.,...-2p.o..a.,-...21A...s., rel:ate, gen...erlay. t...o c.i.r.c.r.ojEatlnEg...E i....c. wat,e....-4: sys..fe-....1.s,. p.e.efeiabl..y,. cir.....c.:.,..).1.4t4ng hpt w..::_itEe....y: ...--,......yEstem..s, w...:-.1:th I,. w....a...4.::er tlaw f'-iryit d...2e....pe.4. toy -..clil::..I.Z..ErW.OTk l-o nq e..",.7.: .fromvand b.:.,-,-,c..k. to a, panp to drive '.,.::....ifcfliati.el-J of th... ' V.:(P.It..i',?..:...:::.., Err a h...it WHatt....1? .8'.....,/8.:te there, is,: also, ...a. he.a.t..et. A cold, to sy..:5"te.1.: have ne heat.....e..r..., pr.. :?:?. cp2Iing cif ehilLie..q,,..::le.T.,3.-4c:e.....-fpr, :70 eireulatin.:J. water. a:Tile:h.: 8y..81.-,.ir,S eempini,E. .i...-ceitiPie". uset p..01nt's on the fle.".1.:;,/...tieudt -arid. e...:f least s...:711- Of these are out let user pbiht.s where. an 0.1).t.let can he op...e.pe.0 t..o. t.a.....]:...p. w...-.2.,:t..e.....y.-.. Q..,It of fh....e $y..,?=?t..c!m e.:.(4, at: 'F1,4". 1.t-aP.(fa...-,c:et) or illh.:e like, 6::if, iEn anotii.,,,:e.-17 :51..spe.:::.t, so,m..E.,.,. ,..,j.r*. ail. us.,-:..,,...'1?.p.:..Ints m1.7,1.:..1'.7it not be bfltiet8 but can be beinE- r'.'..-',.e. '..-Ose...thfiet..,.. 1.t.e/..te t./at"....±" Is...L.Led...',eit.:hheli release freiti the system, such as for hea;t-Lthe, or CQQ]..:4,...Tig, 471PPli'ai-.1..1-1 00........J1AIII:4151, tO which refexeace sh.....r.uld". be if.',..ade and th(r.. eiritite disclosure of,4hi..it7h: is incorporated herein by' Hi...eft...6h,.c..e..,... die.§.,:t....rtdb,.:e.d.. Li:itip.revervients. in 30" sYf=terus of the kind cleShrj,e.c.,-= :1-,-.0 e.P....a..h.:.1..e... mc.....fe e..fthe:ti.,ve.
4...s..0..*e OE aP.,.rplY.;-'?:1:-. re,T.a:-.Ler, .sP:.-3.(ilaily hot water, at aA:aci.J.:4ate levels in: an it-a.st.allatiDn, of the kin.::).7:i det:tidtied,.: t.:.1},:ile:: ifeihthihHlh.d i','.....a.filt..ary cr,ndiL.i.....ens and in....partic.ular eKbodarLents ihhibitincl o..'[. aNeIddg:4.-..".he.. forma:7E10h of e....eefey.i,73J..cel.pnies, it afsp:: proposed a. novel..valve for ia:olatIri:q parts': of. tb.e ti.....oW seter, ,:i,21.1ef,.. cencentraa OJAtidOV. .ia..n return nipes.::,:tHite -.:J.S,ed,A; set ef.' controlled flo.;,,,:,,.. 7:7:..E..g..;.m.r.-...1,.. fc.....7r: "-.:.1.P. :..3::sf:'4.3..t-:c.;P7...-was 7..,i".7Z...1.0,.(-ThP P....71-..''J'..''.-0:....(.1, -..ar.oposal:s. ih...C*14..dee a ix.:::),>-.::::d w4te...:4' mains. feed 40" :into the flow sveth,.11,..., U.'",::YatjfeaM Of a h......e....::::teHr......:3E.n..,.111 db..WM..:..tt:.?:...fi7....:. of a pomp_ A similar azraagmeht is appropriate for the pTasatt. prCOIMOaala THE l]iVEtc?.YLON firet asee,(n...n cif cut: prepo.aele relates to the control Or regulation of the in a dIftialftin-ttp stltt.ezt-uslnq a combined pipe sLruct.)1..., ;hi. oh an paelYiew c.:o.y.Tclutit and a.return conduit ol the floW oirewi.hai/e d wall, and in.which. the fle.W IQ satOhdaTy. CIreadt - 611 diiteaet C'tb.Tay.s o± d bildino -Whose siippliesr >need to be iadepeadon..tly adjuaked ot, inter -t*.:**=_-,peadaatly Tfe piropH.5.5-aj here i. s a wataT owpply system:, of oirenlating comprising a flow cdTonat, for water: to flew around the 15em and a pwmp:connected. in the flow ciroait to jveE oaif water., the fAow comorq a. p.T..imanyE cl_ncnit arid, r4o or more...secondary cCTraita the respect. ire secondary OinCtita being individually connected to the pTiTaky..oltoddt aaotnIi IC awherein.
each sewonda,r:y c:-./Toadt has one or more aaer, theee, pro.forabiy and, typically, inciudlni one or iao.ie oset outlets operable to take water from the oyf3tam, and has a. combined.
sernotn:ra in which an 6:::::4:1Ia.1.4 donddit and a 2.5 con:dr:lit of the seconda r y circuit have, a se000c.iary ci.rcu It comprises a denaIsaionitlg TaaeTaor connected tne PT4.T.cTY:Cici apd S1 ('It or more.user point's of secondary circuit, the taoalatOr compris irig an CCelaa'.ida Mac.Thahr,O*n3.:.
1:11_,.a th,.-*.e.-e.t.',:afh obodnit of the combined pipe.
strij.ctY-Ta:., operable to a^c4-1,-2.rwat. the decree to wf:i.c.h the oci.las.,1....px]. mechanism occludes that return cionrjait, and operarue to het or lock the occlusion OlaOhaklOM at selected cleOree cf oCCAusion.
7L.P tbe. c.:10b.ing=4 m ru C outtlow surrQuflas tooic.'et-3,-Itti flow OenAl-at, BOth. OnttlOW and rota to conduits Way be cylindricj* TeeitatJV they are ObaelentricaIly,arrangaP. The wall of the return coadwAt may oo.lasft.:.4te Ewoll of tn t4hvi P:50a:Pit 'Can(. bc;;-: the'.
common wall), wITI.:7fle the outflow conduit h:a..1 an orttalif wail which...cdrist.itubes The ooter. wattof tee combined pipe iSt±tittlitet ***5 cb.2apassaaning requidtdr,s preterably a. discrete: de...v...a:de e. body defiEning cenduit sednent.s., an4. tp of a: rap. :he pipca DesiThOly. an :t.i: the ietu rn dbhdiljit." and hic.h. is M.evaHole, prbi'eabbly rotatable., sb, as to pr..esent fiaw rasHistan.ce in tne TbtnTh typioa.i...iy by adI.a...stAng the Pnb±Psb,saotIon.
area a restri otion GIT oTifl.nb 'point:, in lind with the,: knowled:.2:e et" a peTeon" skilled. in. '''..FeJy--ee and te2udatez.d.., L he-dccid.sien. may be in. tb.e nanya pf a. v,ame, that" Is, a gehsTaily 11i t body oTeaebtAng, a area at an.b.jde to the fide tifliT.I1UM at. anothnt, Jar angle, TbbTe may typically he a rbbati,i-pa between these pbsiti.ons ct JUL a. '.2).Je...-rte.t-tumn."..' tne Dccausaen member may resemble' the vati2" of a butterfly AlternAtiv'ely it m..ay wd::::h a th ouch bore Or C) then thgonnlil-cpbning w.H011.aLlOws f] ow ebrough the open inn when the op:arldmq into with the Tun of the raban.h oonIn.11,. but block,s flow when Lurneo sideways on, e p turned t.hrougn S ca'.,cc.!a2,7t.EiT turn tCILEItCVF2 f2.'a Tn one 5refl:ire;u mode heiTeHia,..... the occlusion mechanism does riot dbefateHtd occlude the curt low denduit or does not operate. to Ataxy, th,e*ecciusien dt the gut-tlQwconnsL there may be Re cLat) rcrnr n the.
HOWV.a):7-a. pPrt..inri'ef, the actuator, such as a portion of a stem carrying an ocolus i thet'is.her, may pass through o rc:rossthe rio 00 dcieduit e.::3pedially a. sit.de:..1Lian where brearTe..AY Pat10w coxinalb tna the addiusi:dn membee is*rotatahl:e at'ound'[..a: pdvbt crosses the axis of therbtarn conduit, i,e, a nentrbl or menlan axis. be geheT-alJy ti.nnulaT in nay be used, ebed"..lealv since ful I closure may not be needed. as.
fuxx..heb di stircr feat Jr h...,.3re arises be:ea:b.:se the 0.,.± the Q.0-1-Inis.SiOnincj. only to adjust the supply p,nin8sa1T reiativeIyy to halne,e, the aupplins:: For this puirpts,e it, 13 nc:...rh.
occlulon the t ' i ur n c i 1 z bib,:ck..: the or seal it off. It is p....b0f....r.Able that in its ti:taicHiffibTh odbju.Sibiii4 th±,:.?" obbibsioh mechanism does not tbtapietely blockthe rebux.n. at.
LIZU f±cT I-2t b"..7:5 GX /from 1-101E, 01 ares of the. return c_2".-jnAllit at the 11..0.1.t.:..at..ibn of the otibitidoh mechanism or f6i.. flow in this bositon. Th.i..;i3. is des...' rab^ : f1.111 s.ealing px ol.Q.S.,jbe,. at thE mectlanism L2 £55: add. Cl undesirElbie t.x.up VO1.UTS or dead space to the sverez....
the pbov.n,of tull sealxna and., complexityf alEid subh -sealed devdbes s.omet4-..cries extxa ?et±:1,1l'iCJ2r3E pr. ^ friT USe. W.b...exe, preferred, the of the confined. b.c., function of adijusxing:and. baaanbing as between secondary cirbijits. a of providiLnq I 21of 4. Xbe Pr jr.:-i ci runit in order for maintcflanct wb.r.k or the 'ban, beoiven to Pxefexably. e..H:721.11.prli...,..6.3 a: bodV 2.b):C11 1.bj collbdeblE te adjacent lee:pths o± comba.ned ab.d. defining a secanent of cOdbXt With fibSt and second fox connection. -Lb the ebdb of the respecti,Je combined r pa lengths:, and an internal wall bleY.L'..ifled by the regulator body into 0.:btfibv and re turn flow 3.11 oondui.sub -r0b1.41b)1:41.s to th±.73: 6utflo...W* and returfli tj.ow con.d.u..it.:s of be nip pipe. con.n.e..b.tec* tg As, eNplai.b...e:..;.1 tine combined p.:roe is preferatI-'):( PEbbmd. Piom rie"...se'd or concentric tubes or pt tee, SO th8.....t the of the c.bam.rflibtibhib4reaulator may be an riner tube segrns-nt Iv 'f of appropriate babldaA]ybezt...efl.6tiug supp.oxt stbucturesE, in nes:tea co.lacentblc relation' wi:b.f. an Q11-7:er tube.e,:e.gment;:., The outer tube Tay h..0 d..etdfle:d., by the regulator bfAy it self, or by a tubnlaz insert therein. Thbixactuata.r.
ti.eX.:1'.1.carlism can be mounbed the recju.ta tor CFO.y and de...six,ably includes an. abtuaXor projects into the conduit region. it may extend across thEe outrow conduit in the diamtric:41 -Lit:TO:41h the the W.E1...11 of ar inht tCte itt6 the (Lt..h..itiudt segment of the re..culatcr where' it Carri.E'S' as a vane-A,galne.close e.c4=.{1a1:0X Stem it ("11..e3 1,E" nIdt.
reLurx a.fJA cjt.eI.cw cofldln a.11,e part of the same. sysTh.em.a...nd obaY the' out,e,T, need' environmen.J.:., tJie]. it: ter Duxpose 1.(.1 r,ottittotr.;_al Hadt:IA:atbut st***^*,.M pAI:hih".6fl th.tat:..4h the reguJtor *ath bj\?. ox one or MOre m.a.Y 3h.c.,..,41d: provide4jez...sentj4:11,V.
4.olnutment hveTHia range o,"1: movement of the oclus ton member, combine cI with freans to set or toeic, that Position.. c:).:Pc:c e.,72-ti.04.D11-5he.0, 10.0.7.an.q. screw. hr ehg...girlg the b...c,,.dy and the rotatabde stem. hcaixi:alIy4,whi oh can ha 1.7.:..i.ghten....e..(n to ci...air117:: it in position: to the:requlator Oody when the adnustmentE Parsc.n. can conceive oth.PE suil:aooe adjustment-. and).ockinq mecranrsris in accordance: wi tin the type of ac.tuat or r-aechanisra, The.11'4;..-1.1ttlatby 'body:may have receiA-7.111...g...s.t:2.rc.7r.-.E.ureE hP17:4.-iflg a nncPf loviithe se,aled witt the ci;otd1.1.it regulator these dp.ehdh4.. of intb of onfc thich I oh Iic4 P gap be ihu:stdi fitt....e.di bringinq the outflow and return condh±ts of the external pip.je into and cOms.z.larlitation with bibtl-1.61 and 16ttiiti bbh.dtit 'the,:b6h.dut segment, Thb eria Of the. int,:=rmedLat,'..:?, segment 1.:he rechulator ms=4:..y., be in:axial reQ a Car wifh. a 5.1:pp for the oute tliat,s1 simple htltb.iniei.d pipe end fht: ith the we I. is of tue r eturri and ach.dnits-tern friat Inc 35E at the _same Ien.qtb, e,g, *tC ch1ilici can and frfunedjaely,.ea..i.c:0'1,-1...1.;i adequate dommunidettloh.1 bOtb conduits," A;Lila.. s.e....ad. hot.tieon the outflow aria return conduits isEnot needed, behAA1.8h t...h.0y are rart of the same water sy,stem_ Th0.' 91 tb.e.' pip pip. to: the U regulator hgdY.' ma he by means:;f:In48 ac-f big on cony: ressibie:seals, or or other ", known tieSfts, opt tonally With Insert ad seals such as beings, The C)U t. en pite wail may be fbf..hdd into be preofbibiedd with) to ie engaqed by suct. CISJ1IjJ rings. The Ublbh open inns of fhe hoUy MArty* have ebbagemst To..tmdtih's such as screw thzead.s to engaqh such oasdr rings-The: 1-....kdiLea be...:Shn fhb' inStidatiSh of tarp S.pi no systems Is aware; of.. a range of options in This usspoioti Tad sf100 Valves a...!/,'7atSth Of the kind desttribhd, it is-desirable to be le to.cdrccadts. frem... one from the oximaty c I 1705 it. . P-rsi'ilerablye the present.
of the: Sebbildery.' 0ithUit8, has 8 re.ans-ct ire lsolatton. fOr iriS iy fic,sing off both the dniflow, and retHarTI ce.r.iduit.s, se:car:dory circi.lit, -1:j.esira..E4y this.1.)y a singS sic0a.attrm.
vs I ye de.:-s.Jbe bn both the bstflow ahd r..,.hthrt...obnduits of UObbinhd pip.Si structure in thb, sebondary,CIA O4.Ut. For this Dunn. 355 Pf valve haV.i.tIg 4, 20,1 rl moVabl, el:emoai aot.i.nt..4 0beiatio11. td. both. thet haifjow and:retort-conduits together. T11/1.24.S4' iL.70V comprise-a ftiOVSbJe Saosu.re element dbfihing. conduit seqments (thTo78(.7:02 closure element) whic..1*1 COTT'ea7Cind., in form. and orients Lion t.o the ret urn br.d outflow conAnit8 of the olthibed pdph ufbUE*.OttrhS le.adino to and from the The oldsure element may h.:ayeHan inner tube se qmen t mp..-4fe0 ins*Q7)-ie,an.
brine' and outer conduits (espettaireiy, rethtn"and, outflow,: pit/et&r:Jably), The:nner tube. segment may be HSUppdftd. Inside th outer hw a ratiloi a:deport stiruotsre:81i c18j pi8:TeH.
or:111:tj-34.P4P.4 Pr' EitEillY...--e.HtnaHA-11q wails, Desirably the movable siosth is a rotatable closure, 61h:.dhht movaoi.e by fbtatioit bStWhSh obdu efid. closed positions., a. 51 tht*bubt.e. quarter---turn, reistive to a housino or 18pc...y. oP the isolation -,...(alAfe. It. may be operated e,o., by an actuator accessible or operable ttoin outside l the irSttd-e,.. dOtHh. as by honfl:., or hyena ctua L ion tool h"g. ....screwdriver, spanner, wrench or tb." like. encIaoIno the act.12.4t.PT, The isolation v.a..-.17e may be a ball. valve, in wttob a 8.8S.d 449' r...(4tatble OlObSre: eltthefit hAS a hurfatb portion Of the. outer conduit part to effect sealing of the outer puhdUlt. saft, it may: On, 4 me:OttietJ. hell Wed:ye in the fetn. Of a plug VelVe ited the hbfiable. otekeht...hednp* *a. cylindrical or ter:1nel outer sufrene slibabib in: seellhg* it: LCat.onsh1p w.r;thts deiceespOrldiagiyuehepd. oylindricel or ophical. at of the hosing or hsbyt The akiibb' pere0h will apit),,CS1iete thcii Other': fefrte. sheb OC ehlObbteeetibhi LOhehbe.t:Se&tiOh* Of empleeettioe closure elements may he used..
14 our earlier ap1C.:.)..icetioh, the. fixed etruerurn cf. the isclehlou valve. ir,c11.1d.8 frbef. ahd. ...seUchd.
seelihb; portions or arrehbeMehte. to Oeef. Sbefdet And ereWd theurespentise oppecitelyedifeetodtende Qj the uoy.e...hte.. element (--C Th j'f*a..ciPg tbe c2Phect-Ted lehr:0-14:-HS c1" combjlied..
Preferabiv the ishietdch. holse ds e Oleebe1e. unit ehebted.
15. to be coupled jntb adjacent. lengths cf cumPined pipe, conceehihh ap *nnef con4hdt, if. may rhve inn:et cohneeror on urton partiuud to slide LhOch a r.nind or Q..rItC) the inner pdpne et. the cumbihnet pipe:, and outer tubular unions th.E SIdde 'ihtO or around the outer pipes,. of the combine:PE phued 2.13E 0eHcOmPriSed in or: contained within; e* valve body CY;X: nuns. in which also mounts an nmfernal epereting...mbmbee of the act eater, and by which the mdseble element can he moved Or turned between. its omen end closed Pos,iLLO.ri.s, J.n the dadeHf poeftion the eerfOen. of the::Hilbystle closure.. element, e, p. htlitidtided or spherical jeurfedb, c. oses Oft at lee...ae the Shter flo.W,.danditit with. a.
sealdhg Phgegt.3mon.r-00, ht. leSSr cue side ihu 7.7..cqve sud pfeferabd9. sr* bbrh sides of the *valyn, Snst. is to say, preferably in releiebh to hbt the attached landtha. bf 30.o.mbitred pipe. . A Seei on only One side * Geoid proydee the necessary iscJablon, hows7ex, fh hhe oven ocsitiph, tha ohrhdow. end intern: deflecits are open thrOflqh. the idelefiet valve for fidWi As thehtiOntd.
ebb:VC* in. the Oteh pefirten it is net ofitinel thet a true be f6Tmed cerliCe.ci.:(19ESS Ihreor rube of tho valyso's sIertent add, the' inher tUbe, On tetalar union 01 the adiscett timed raft. or of the run of coMbiued pipe connected to the velye, disUdoSeCi in our a for nne (.7J-.befe:member to:have a relat.ivel.y recessed req i on on ite ebtO.erdiSenffeets,. bounded.
by the Sdal. Viltioh is fidtM.Oet: id the closed pbEj:Itibt. rerebv IhO surface of tne,ClOSIATe* member is recessed. away from t...he end of t he iaher. (:).r GJ the cgmbinf:,..d. hr firom a cc,fila.ppohAing oh ion tube oompriEsd in the Valve in the CIO:Seol bo;..Eh cenddita are then,-...,;Lyiisoalec from. Ehie other sidd of tha,i.ValVa and relative to the dxhotlpr, bat the iarrer ^ Q...17$ side at the valve are fn communioatiph:Figpfoiciablo fIo.w,vAaE the'. rd,!::dds beodhae" the de.d Of the inner tubeis spa:Odd f±..i.t.T,M the valve closure allows circhiatling fAdw to, cohtih..11.&ftfl side lOt tee cbosec Va:t-V-e -especially i-he primary circuit s.fdla a7o...::,:.4ingE a pQteDtialt ^ arid, tO/ saodtaxy conditions As for other-features, : odadirably the isolation valve, closure member has this co:-..flmphloatied. recess taatahe on bath sides so, that thd valo yan beE, 'Installed either way Desirably: each of plural secondary circuits has such an idhlaticd valve positioned between a pollit of bxahchtn..q from the PtimalIYC aflt1 a fj..11'ut PPIht, 0.,:sPedfdliY fihst outlet ileex polnt, of the sapPhAary ofrout t (in. the direct ice away from the primary that idoldtich valves u n sccd:hdahcsa wi_th thavdboyo and..ccnnmissioninq hapalatora thet above proposal.). are fJoth. used 8h:(.M. as in aCCOrddhiOe with the first aspect,and that the Vdf.taS and 666lidssdoning re,gaidtors Hate cpdrate ddvicaa... It fe pte.iferreC that, thd n v4ve be fecatod Ei.detween the cammias'iot,:ing roqhfaitor and h.:Ir.:id primary circuit An dthdiedIf...aht in vii ich the. fhlfdflefis Of the commfaelcoloici, re.gEtl:Ilat.GI and vs;),..veirm crbiron ih4.0 a afiagjeE device is a iso possible as int'lq.dt..,ed later, ,=*1t4c).......4.ch the reitive cPmple:.:4Ati.v ot saoh,. a device may he less ptefer.ablec Circuit Features Preteraic the different secdhcia-ry clroi.lj±..?z, orat least some pf; them:, correspond to ditfeteht. hetqat i.e i.s at', the dyihtelh HdlJoh,ddffareht storeys of a. bolIdicq in thd, we.tiert cto) ftfl:15 Inc fhcipx1Thooy circuit to at lob the are connected may also. comprise Or be edbatamtaalty formed of defthbfhOd pipe at any kind as mentioned above., and phefecaiDly 17:44e s.am..e. type and c.:1,1ETTiefl..5ion....s as u.8.e:.d. for litrestc.ohda:A15 Th,f3E of a manifcad, extending between. 12,17=.%.:Pc11, P.).4..Tt= of the haep:Oott.ve secondary sys'tems, *sr,..rb as up.arid E d'.<>..w...n a I:venal:n:4 in which the ahdendeey sue tees are on.....stb..Ley" At or:adjacent the posit ion cL-the aump, and a h4..at.,§...rE if th4_:.'.re is a heater, iaie* drotioet from erildhimed elpoil in Which thd, ihflav and. outflow are separate, w-ittnilt a db:.mmbfl wail.. A.contiuence JO joint, such as a can adapted to provide the point where the hop:ahateattic,, and:return can:dal:re dcerge tn: eorm a.
ePit.hioed: pipe for title are:described Desirably the system.is a h....5t water:z-.,,Eystem., in wtich the 15. ptimary. clicu** tmaliitkis a. heakinined ias, rhe, pump,. thd PT. mary circuit also point for external we ter hop:ply, where a: sevply sudt, as a cold wHatiaz mainn supply, i8 connected into the:.pit6.sent water system. As known, such a.
connectian Is usu.:a/11y v Ia a check; valve, to prevent flow, The heater forms next of the I-Yependini:. on there, i.r,a chamber to increase hb.u.Sit K eat or, Prjet.61:7.a151.y is desirably a. f:rdttan-f:ini:n beater dirduit, devdie t. In ct ii ram an -he.zit.s water resid..in.g, in a tank..
175....1h...ei volume be dn advartend to hav. no an of water, esr.ecial VbiuthE in a,. h:<::t, war ac system-Such an &000iliU l.a. to r chamber pximery eirentr, 0/v ore uf rhn and ie also deeiraPiy constructed for tr.todihefiowt it has Sn inlet and outlet at opposite ends., -the::11.].:fiCbM. any back-
W
-.0f6THert4.y the inlet at the.. bottom and the outlet at the top an:4 coanec t,c) aerd an soanosi Tbie in:: in. line with:the, propeaio set: out ih. our earlier hpplicatiera whereby a: .het.
42 m\21 i eMbbdyib4 tO avoid or reduce risks GI ries.1. raby cccli 560.011ciSt7 circuit has usE,±" such as taps... Preferably the user points are pre,gdcled...., in accordance with the cl-eneral te.a.:Echin..5.:a of our a s.ubt....gsTan.(2:0 C 77.)xan..c:: which itself has a: combined pipe: nfrflorere, with an outflow outlet br,ajiit'h dbhd,...:At',anA. a. :flow outlet bia.r.ic4.;1, cord:Li:it JO there can SE-0:abe) eJ1 the *at.to thevetit.let 0e:tit.: The pfbposal. Hn.
are aprIicabie Where the outlet user p01t.nt:H:3.; are tans and the system is a bot water aystem. des I rabl.y the Laps: are or include miser -!"..Apa topA where A: sega rate obi:A supply present ahd the tap automatically combi. inn. the 11:ef output at an:ricceptable a thi,s: i.e we 1 1 known, One or more or aLL of the gbitt.
I hemselves include respective: valvez, ltr.le PXcP2,:;,=.J4:--Lsr.eti-H4?.:',LahcHP:he 7ystra for local s.17.11t-Qft, riots and. user points of other kinds may be present acoording to the..)3pplipatip: of tee system. K-....7)xe:oveE4. the: P:t,?T2P, 1.TEJ:JaH1 sYeltem flPH *TzceeatHily St not water estee but may he for water at ambd:r.:117.7.: takes advantage: :.of T-::he effect of the outer conJvit to shield the inner cendult from ehyLropmeAtal.teemnera to ices *tiL. .I.. . . . . . . . . . . . . Our p.tevi:oue Appj.icei.on propioaet. a syatar,a7a an which syst em in I. L iat: ad..(ai..:', ome±iceilyj a shl.;.111:.,---Q:fq of the return cc.Pdt,.it:in the event, of FPiteteiiiti.:1..WAter: nHajfige at one or tiOte to max.imi.se the pUthp for ati4dr4 flow at the cutlete, We find f.:-.1-7:*.t;-auc17..
always eece:;.,_tarv, 'but i. t. may be in. the present system..
either in the m/aIri-return (estq.:: in th4 primary in any of th:. :,* in a I±Lada.itetur:h of the ednfla4...ITY Other: Aspect s: s. . . . . . . . . * . . . . . * . . * . . . . . . . . . . . . . . . . . * . . . . . A:51.5._/§teMl* having E plural secondr*/: at the type de.scri.tea valves and. ac)mm.S.ss..stoning requinors on os....ch of the aocendary circuits it:sHeif a eb*i:ei proposal tex: e C..f:J11121flE'a pipe:: therefere an as:pect of the eToselst propesals, and/or: the.isolatic:-n v:a17,re used are of a. 1:,..T,?p.e: tban.
above.
LO
An tso...l'ation valve using a.(2-yli.n.oraoa.l. OT conical piuotyp.a rcvab1 member x or ottle....1 torn or rotatabI.O.±:b:±habilJ,..nl:Other Ibtzen.go-hoe...cti.:orl or ohiaJosectH.qta, arid a s'aPP1..1/ system OoLcLpisnq smIc:::"..b. a valve: anisol -T)-c a c.J_tc"1:JiatIni arc A...OpeictS Of -LI:1EO alabVe.
:. LA.rllne msoect and strl±ctur...a1 watx sy.ato,, Pt9Posect:ra.o.i..?,Hd.or: valve arki that is"., dev.lca, in It, will, b'e...-:h,nerst.'30'.ca. ih.a.orae an 1....aciation p±cylde the function of e the -.:,?-ajv..O has a. cP.Hr,,±1P..uP1.1...m07emeht. fxrimLJL Pi0...0.0Ji:....*11h,gaye.. JuS n. orincipl.e for bot.n fan.ctienr to be pre7iLdeid. by ±ricorpoating Mehah...S0 An iablatdon valve for it t'Q be le,dked...a.il ar,y niuc da?gree 0ppeni4c. ihia excluded, by the. p.re.aant prcYoosals it may he z-or.1.-opti,x....al in that the pre set Whe.E'a the isciatioh valve:13 operated, It may also be the 20, aportor, or the.:17....orr.T.JhxitY of the device may cause expense.
14.*)Nevc,T the present propose Is dneilia<le an ajt....c.irnetive..in which an ±solat on valve of the g-oh.P.4..::-/aa kind deat'afibOl: above, with a fdtOtAble clo..E.ure member. .of i,t T 4etihihq segments as described above * additi0railly,..compr:f.E.s...es a by meen...s of an totii.istorl a rc.-tatable sane positioned in. the inn,e.r 00 nduit especially.. 1:=.e.tarn cc.:.ricluiti. of tne by means all which its or rerirat. i. on relative to direttic,n. can be adjliSton and locked, as; decor lied above for the ' t.E34.biatb±. Such a 6.6n.thopt can be implemen.fied I" p$...,T1 a. a..0.p.ve, which an onereting spindle for the closure valve and an operatJfil- th:e; regulator member are extenAd.nq in 0.,:.:).posibe cliiscti(*.as ()lit of: the valve how,7..i.q. tor-pperati..pfl-3v this meahs.,.. it may indeed be possible to.0-v..e.x4tH.=3 the isolation valv.(rJ (turning the. da.o.sur,,, member) di8ththlhq the position of the o.00hl.hml...an member' of the A:0 I 0 T.tP.t.x * . * * . . . . . . * * . . . . * * . * . . * . * * * . * . . * . . * . * * * * * . . * . * * . * . . . * * * . * * tts conduits of the pipes, and eiSdeSIOT.1,., Of the ossibited pi,os are pipes made from materinl.s..* resistant to e.T.4.(;b as ste i ass ateej. or Acopper, However sdb.ject to requi_fort,:n.m.f, it 1-a:e".,. PO:pass idle fEC).:r one bf2,! D detroni plastics materiai. The pipe" material may have a SUS:Lt or aca.tin facing onto the conduit to IDCsdl-ry itES resistance to mi.c.;.huble1PQX*dsl. cedi:amlnotish:" and pattAdhastlyiSiJt.
not 62:,..1:.lasHi:Vay for poivmeutia'ppt.',:;.: Where -aS is ".6i-efSfred -one is p.d.sitioned surrounded by;e:he other ceseehtiTtoelAy)., st..ru.c-h.v.r..es ate.4..esHi.rabIy:p...T.7..:71:.c.i..cf. betwoeE the.' :e g. projecting outwardly fT..orn the inner-pipe, inwardly from the b:iat.ef cope Or as discrete elements fitted between they:n:4.
h,oad the * PP.!? in, PP-i-Lic.P.d kn.qw.n arre:1 the- fox,: this, 2:.0E.PtStAP.
The pump is pirsv4Hed.. pTilTaTy ad C esirably z.,it potti.in of the -' 4 single plpe.
In e ect water s..y.e.tem., J t.T.le-pm.?..7). is.. upstream °Ht.. the_ hoe. tar Any suitable pump may be used:, In IdnEe with oetventi.onal knoviedtfe. Ptstetably pUf..tp with tstittolisielVvariable purtpi.ncr rate Wis"IER SOURCE SUPP:::1 When a-t-ten: :is taken... .... ----------------ffbm.. the system at an outlet user p0 ---rot. the Prefer-ably no static.
water star ace vessel or rfc]...?:..,T;y24:21-is pTe....7.74..dEeOH" so T.:.tha:t the wat..§;:f.r:fi.3sentiallY;c)..t:: the dirTi..hlstsry flov systsm and its bitenistes, To this en".,ti,, iris het system the heater may act ditsstiv or in-line on water in a. ci..r.-3/4).1t.ion co-i'--Jute thrond10 the heater, rat.he.r than heatin a substantially in, :a sto....r:e4e 0.f ^ 8. pressurised supply e. 0. from a aejd Storage :f1.2=7.!-. a q2j0 rnaln, CQr);.n.,7t.?Cte..i'd to feed water into tti eje17.o4letih's:3 sv.stiern to i=mpeft.a,e..t.e., for Wetft taken at outlets: THI? This connect ion into the water Oit1C.uity OpZtt41aM of a hea sex thox.".e.ef when prPse..nt, The s.np.p.1.7.*ehPfeh:ably 01.1.qt:Ot'S CCWM,SH::::reaN_...at-tine pump so that the mo...ximum sgpply can exceed the pumeihp capacity, and/Or to fecilit".0:te interrupt ion: of circulation if a taci,11...t....jv is ptd...'Yq...."..d.P4 for this. The supply may be initiated Vid'e ChP.C.k valve," at the cchhectich into the water circuit, teSpondihq tp px..e.s.ehre drop. in circuit.
ossecra Ii when an outiet is opened) to suor.)iy WPt..et Ph...cdt" mains p..hP.sh.ruiPt.
NOT "WMERITMWMR in *a hot water circu.i t, by p...r.nvidihe a suitable heater of sufficient power an ad_eq3lat:o water at.
eS15.-31111tially 117i1Al.i411s pressure, or at she edeply". Ote.a..".niPI:r.ate of the/. ebid can be ava[ilable. at i t Tooh..ea:ter tYPETE gutput Wir i depenci on the on the anticipated maximum flow der,a44,J.: The O111117:),1:)4t. is -...,ib±efet..:ably controllable or..adlustalbj ooO1tation" P1x..amtil4J.3 oT b1&hcetets... inclu.44elec.11tt:11f....oally.,pomo...re4 or combustio4 -irat.ant heaters; other types may b4H4O-4t1L one a4l,tablO type is th tiatu7ral gas PrcTane) t.t11r uSiPg eZ44c1...5t heat to preheat the..iinpcming water flow, P"...tefehba.c'X a adnent is p..;e:P7ided PP dOtE:e4t. when cold wat:er or water below the.predatormanea circ4lation temperature is being fed into the clrculati:ing system. this:may be a, flew..ewhor in s..upuly. conduit, or a. Se-n.:5t.r for d...etectixej openin4 of valve" or the lik0-fl11114h connected to a contri.7l sy174tOal to adjust the outout. of the heater in. accordaTi4o with need.
DEVICEIUJELLa 5-1:a above the provision in the system of a: (79.2Pg crevice or416.1_11er to act. on the cirtmLLating water.: a1714 reduce its t1emPeT1!a...e1-atO is a further option, Such a dOvid4O may be i:".7.0eiaded instead of a heater, at a similar positii6h in the 8y....8te'.171-1 where a heater would be e.g. as shown herein. Or, both a he.ater a...cH a: c44dori4J,,Hjler. may dis.opseti so as to operable to a:Ct ontne same Ot on...f.3.oprate...
with *a heat:er, cool er or eh:liner can be E,..1:Iblettto...5'.3:utbmat.ed plogramned control.11the. ay....st....nm and.
control ol heatex.
appi I oabj a I Is mu I an. cU. a to I he control. . at a.. .....-.;:b6a/e± (eesrasea(( .............. (s' ..........
The present. sytem desirabay, cemprises a p±b4i,...a...thili:d db.ht±b1 s.0 t:.611'.,., and 1.-,*,r6crommed regiap..es in which. it i'Es operable:, may he: in. OU 2 ja'ppiication and are s..et aqatrl: he re cr. L y foh compdetenea(s, The aystem. f8 no indi...(caterj: iii tl1(.onsaJtsineht((deSh2:iiptifine ot examic,les., but it is as.aumed to be pre.sent ifl. line: "I 0 I i nowlenE:ge... A. svstEem 'type: above in comb-LATI.;,Lten path of Lhe pre sent pi:pooelso Gen.eralLY rchntroi rt:((.1.(2L4-h(. Pc.r.(1.1?((((j..((*P.73 temPr:?4.t-qr:0'*Pn:S4-1: temPL:.2.4tue' flow, There may be temperature:sensor for o.etecting the ci rc cli. a I. I rig fl...ow temperature at a rr;ost ren.c.).-te poinI mast for where the.. ont(i'low col-1.dnit awl with. a return eo:nnoat where these (tun( thOa by side e,g. as nroposed There ocy be a return teietbe:cat.uxe. sensor for measurincT tht temPeratul'e iP the UCrtCLati:::.c-ar a p"mp, typaoal,y doNnstream of QX at the end of: any re ion where the f.etutii do."1,11±,dUit Interacts with thay K. 1.fl.0i4j.dual outlet ox, afj. polH± temperat.:_ure.. Or r> C) u.s.et Point 5.
VI-.0YE be Ha suPPI-Y f.:....(ar.:(POHrature sensor for me.."-3:uiring the temperate re of supply water fed to the oiraolahinp system: e(p.:.:27.
a maan ebid vesscl. Out-outs ftom ouat. tempotataJte sefl:3.0J7:5 are fee( to a, prooram.w..:.:1. control processor, appr2p.-±-2.4ate Li anaduc.er if necessary The control processor is p....rocramm.ed to abl.e toadjn:61, the Opetatibh of.J..hy:Or ada th.t± pump OF off" or adjst fl ow. or outpu: the heater (on or rat:e:), a.fAot,(47 re.s...tr],:ctor: or 01.0suXe valve rooen shut, or partially open to :4 pt.6dt6ttlifffed lnde.penden cc. on any one or mare of the above auto tics from, temparatare Tha COntrea ayatem may CiC)Ditp:1:1.5:e ond or Mete' flOW aanMera Lc: sense the pretiencei. al:ace:ace cr. rate cf fLDw in the sYstem, an,711.0r at aTT o tIet the.X.O.PJ, aaCi/PT in ft.Om a shapiy for extctnaI wataT: shmt. as a.. acpply main as diericsca abcych Ahai.n outputs fret shCh sensors are fed td ObntrCi. be procratted. to oPctate* or a.1174.jeat any or:a haat:Cr, P.t.MP or C.EXPenMa* Val.vo or flaw re....chiator in daPmadohce on the:detemted ontphts,.
MCntionee, the system May be;proqrarnnec1 to:faspend. to achautititiOn 61 het water from the syshhmi detected flow at or n*E-:,ELr an cutest Pedni. or. with refetCnce.. to rc-atternal anppiy, by abtaatiag. a re.b.4...1:1-:. 41..,..-)w shut matt or e.f::.:1',Irn. flew r.c.ctridti.en. The centre:: processor may' Po croqreromed to iherease the-power output of the heater. In: datehdance-on detchted *neteased tio.w rate in C aystam ah.O.lor t'h.,P external euppiy can1hit hbpys predetermined tba.:*..estold values or on a cohtanecusly. veniabla Mania.; The contEx.v.I. m:20a cara5Pondihg, to circulation of nt7a ted water thCtalb" the hot :Wat:O.T f I OC oitcmhin.a.nd heater witMcPt coscsactian.atF tdc: outlets - a.. distinct dynamic mode when. hot. water is CC:heaMO,.,% at one moxm: opa oPtion neat ph3hla In.he steals toCe, the c.-antroA processor is confab/re to taintarn a ptedet.tedt......6..d. P.OMb"' - CbtteSpehtine-tc IA:tither flow-and a lt USJ 'c1fleratin emprtxa thc citC.01atI0q IL-0;4:St With rejf.eX:ehOeI or marC pcmCc!fmrmined pc:-its, chg. at least ot a final santinel, tmbitahathre sensor and/or ah a tetnrh heitipaPathPe ten.S6±.
Tesia may be set es a. mil.n.:Htpv... tamperah.ro in out:Put anicr* to reduce the. flow rate the event that the detected: the Mredetermined Desirably the program dpetabact e mainfaAn a return t...empsictute.
ocif above T...rra=2, cOnte.0.1 processor may also be orearatned to-operate an exceoth onai steels MotSa or pa steur isat ic-ri node in which tji.ew nCaMCT: are aehqOta4 to agnaCva an miniTaim tmPe.r.a.t.hrC suct as 60.:K4 55c or 7TPC.'",. By' these' ran -are it 1sE. pcssIble. e -cm. to carry out a precautionary decontamination CT pasteurisation 01 the system from time, to timb: to ensure tha trio hncteriai cooloh,ieo ceHb The system 01ev bepue(irnmmbd to oc:rate Lb is bode oW..y a spei:a.J.io,aiut.:0:ban,c',0 pbt-tbd,8 or pot:ded.,,:t Of bbnouse,, or subject to:a. warning 4c:it Water at tha auy e2ve,nt. tno, sys.tem comprises ti4:ermoiatatiELe or other automatic mixing dbVibies at the outLets icr mikinq 1 at coJ.d water to Op..prbifrote a: target temperature or nreent a...m4or;ibtip, temperature, t.e.? mr.nt<n safety.
rho OOiLrot ptoceosbt may be prig.rmmed. to sVitUh: the syOtem f.tbt: tneorìta sla mode to the dynamic f.reb when outlet floV is dbteeteb 5:. Ii. at a. respectio, outlet or meeno of clle.te,cf:'...Lic.fl Of flow in Q...r.1::17G-Til an. e:o.;:t..:ernott: ,5upgET.iy,:system. The dynamic:::mccc may *uNi.ve: steppAup 0,Y; olbwing:. the pump' 1 it shuttir,g off or renttle.tib.',4 circulating flow, eop)eciaily HrOteth, flow belo.re the heater, that fliow or solely from the external Tte heethlmq t'Lfte may mn. this c ass be adtited.
dopendenu.e:: on a: (,.ibt.o.teci: temperature at a. predetormified Oh to htt wateT ci_rcuiatien.sytem, e.g, at the, opob. ota1eiT:e. a.t: a zentije.fl.ei outlet., and,. SaM..ce ptibeT puetietexminert p...Q*nt. on. Lie 5ystem5 and optioully also, on -a.cNotecteci temperature or control and/or flora rote of the Okteinaji, oalanly, When but.let flow stops, es di:C3tebted, by any 110w sons or cL5 cent toned, the may adE'L.c..-:)-mi,l'iiic:DIty revert to thb 8tood's mbtie.
rtetstirt.bt4. tu±h1:.U.
or acceieret:ih the:pump an,o adluotkng the heater out:pet to: .1.t..a.iftain. a tar:get temperature correpcn,ding to Oho stasis rood c-fhrthet Hoption: is for cibri.! HUbntEtbl -e,)tebb:O§br to be op.....eTEabie,. in a dg,...rmamt, mode,: in which the:pep:Rio tgrcc.,:,$ oft abdirr flow io ett. b...ix:tnio4kioe.: an:di:or in Vnic:h.
:.-E2ie'..a.:±n:g is t nr.:::n.ob blEt: or r.".?droc:ea to a: reduced preAbierttined level HcotreSpb,:rldihl.: to a de:f...b.Ont teb.'ipt4t4t:U±e below:: the temperat..re et. min:in:Q.:b. tertpuettqHbe monkienbdHabove, pbtticular, doTmant. ne.ithe circ*fe.tici P2X heOtirlg 15 Onviorage, The s.yerem: may be to- oEr*allw the dormett mbbe:after runninq the pabteurisetou mode, when there titioeati bo DO viable, aotivity in: the eystob-the eo,tmant mode moy, bb PTP:gtaPti.ert to run fOi.4 a predetermined: petlbe dUrdPg' HO.
certaj.SL re of dey, abdich uhkiI. there is use of water at a user point, triggering return to an.apisroptIbt.ely proixammed d.c.)...tmaht mode-can. energy without. comprmszabg safety. This is not a feetUfb.of si sting systenis whion r even if they could be run at pasteorisaticn te.J.11PQTatl,U.?( lack full circulation ie they home dead le...go) so that. actual pbsteuttsetiou fs. not abnievdtae and correspondingly a. amfmant MOE(j.::G.3: cannot s..aro.ay,be PgrhaPPJiC L& c U j-system Ih.i]m In ar:.rmant ira.cisr, the: (1-..Qfitro:.:',_ier may: be programsrLed prbvd.dm a. doHlunefe.y fetea...r±ciptdoh mbb.e -a fom.:m el trerbdtief. tO a dyr,thic: m&cie -in which on detection ot the: outlet flow the:nlaump L.emadr:Es 542:(aPeCiE and c.i.rcularing flow. 0)1:1. '4 as by the valve, E;,.ut the heater is til:1"7:njed on ty.r.:.) hent incoming' ebAd*w.ethx directly to.:60°C of To summarise: the system may comprise. a con trot system includin.bt. a p.tb...g...fammed. control probe:saps:, ppareiMI:e. apeohciepb to any mo...117e ()I.,: the following 20, -to adjUbt theHbpbretibh bEf ativ"..at all, OI the pump, a heater and a flow reetrictox arcitybure valve:' In dependen.:(1.7,,,, the -output from: or more rernflerar:ure 36.1.1SOTB c...omprgse: in the system:, - to-: resv.o.ne; noconsumptdbe of hot weber frost the system, detected a.s fibw..at. or neer an outlet u'-i om F hb, relfere::1-:ectg calve or flow restrictsr far the fetux.ri rc)nd.12..-it; - to increase H the.....;:::b.aier.butpUt..bf a heater of the system in dependence. on a detected inc.feahed riatie in tbe fcu loi...c4reuit andieT. an cpflgrait oabc,mr-e.
predetermined: threshold values OT.:crn-a: ssht5usbu....sly: variable Phede.;..
- swite.h betwecur a stasis 6b.cie, tb.
cArcui.atilon hhreugh Jic irr.7.it without 25..bbh.se,IT.ptIon: at the outlets, and a byhamn:c mode when hot ware-is con...sumed at one. or the st..a.ds mode operating to maintain a. pxed6te.rmihd flew rate and a predetermHhad op...e:rating tempertrire: Ir.': the f ---Oi-circuit, and the dynamics ^ ooelAtin.a: otif,:p air:14dr shut off or: flow and/or. increase hbetbf --..r. to operate i.n.' an. exCepttenal paetawrdsAtien S[CPn in 'Whitt floW rntn. 4nd/Of heater * output " are.....a.d.j...0,..sted". to dthie,-,To an &xceptional Inisaa wd.rni.t.c:a.xn temperature of at least 6..5c'..0 (7...,...r in,3C to d....k::.c...9...1'.1tamf..n.a.te. ..f.-..h.....,::!. sy...s...4:ETT.±:...
e to op'..0..y:Hat..e 4.._..r.1 a-:.., dormant mode in which the obv.i...:: is turned bff ah..OintAnIn'W 1.5 enUt Ott 1:&rfth no nIfeulatinh, attivinr In which 14..e.---If.i.n.:d is te.t7h4.0.: Off. or rebaCd to 4.;,.];'.....c,;...4...c....'..7.34. p...)Sedetatm.ieed In tied cotrespondinq to a no.:irol'ant temp:stature. below a:. htnbetntmdhed OreratInp teMpetatete, and pt...:ef..t:Ab.:,....y t'..s..ilth heft/Mat circulation nor tentingc b.5iiwe..C.f.i.n.,Yr_eff_._.:Iz5:f).$Wl_h42,._eu'1t3lbr,s: E...x.empleo. awd. possible mndee of imple.'mentatien. of the. invention ate enw illhettnted with reference th the I5, accompanying dx..a.w.i.T.-:.4-s, in: whdch.*:, Fig.. I is a sonnmatie view showing the la...,,ibut of th...a. 'nexpnncnts in. a: dtminiatieg wotef system or reinvent general. :type using Obit:dn.:ad bien4 Yip, 2 Is a sn4bmetin view show:inn ten ttipni..sitInh. of wermissIoding repntator5 and idniatinw whly.ea ip: a. cdtoPInting nystem of the. gen:ow:al type' shown in Fips it Fed. 3 is a lonhitudinal vertical. (..rhoseonIction through a (7cmxi:ISsjpn.j.Jr.g:i.--vc.:q..ici...:Ltp'=:, c9111.f.l.aQt'aci. .-i-r.IfQ ror.: of comjOHJJoe'd p..'iret Eli. 4 18 an end view 01 the covltsioning fegulatct7 Fig, 5 is a top VlSw:' Of the Cehttei. Pahnik Of the COMMissdehind regulator; 5.iqsh 6 and 7 are vertical axial ofesweaeottonal views of an isolation valve in a tifet embnAimewi, in.. opened othend, positions raepnttlYely;:.: 36: Fig. BC:a...) is an end v.7(,ew of* au. inter conduit unien, of the -cipt '..6le -L,..SQ1a:1,--L'c)..f:1'VaHLAF,--,,,, ,-;,...SP-1:Xe..." Ir.:(T)'..-,4, v.41.:7..er While. 3iip-13(ti). snows both the inner conenit awieo ffc..-m, the side; Fig. : 9 1: an end WieW of the I003Whta4 Mnthe'f (tall memberd of. the Fin-, 6. awn. Fig. 7 isolation. -valve by itself, a5 FeeP 3.5. a.I.P.Ig tbEe PiP.P. in:tt...e. 6.cen i20..F.:Hlb..or" Figa.e 1.0: tn 1.3 sh.n1' a:: second: embodiment. Of isolation 441Me eusing e. SylfnAtidni (ping) eiteute:Mnfber"t FIg. In: being sene.W.i.e side view indicating internal detail., Fig:, lltninp a ainiiat top view, Tim. 12 being an end view indaentleg 41Q' neotureS: of the P.-in.:SO:bit plug..in anfratnh tbeitiOn" and Fig:, 1:3F(4) and ((6.) being respectively a side. view and an end view of an inpax c.:onbnit union o'f. P.,44.
Figs... 14 to 18 sh.bw a.. third embfl.d4m.!ant of 1/4:01at4Ebn val-(fe with a different arranqemeit of a cvi 3. ndnical frb4.abad member, Fig, 14: be! no:a side view iv I lid internal detail Indicated schemaically in 4...n omen position, Flo-15 tab4h4 a view in a closed posit! on and Fido 16 dca..ing:0:ft,44d Fig. 17 and 1.1(-:!H shbw a:(1,T.:Junt4 embodiment of is3c.:14.ta.on 700.i.ad the first enbodimert but using E sepa.:s.een seal rings instead of provicana tbe seals L7(-1z1:4.p.rally with the tube Fig I:9 is: a.vertic4.1:Jabbs:s-ae,c:-.4:1s,r1 of the mcva44/44 member (ball menbei:4 pi an isp4.4t4bEfl.V P, shewing h..,DwE a.
corcnissionin<4 regulator function can be incorporated intb, the same device; Y44-:20.s1404.1.s en:larg.0 f:orma of g..2M41..ect:nr OT:uL ion.
:strubturP4::: whbse positions are also the dira:wing:: of F.:1g. 2, Fi,41, Obnf144-nbie Wh:Oa.tb s±nol e p4pez. 4pin or emerge tHrcm a combined pipe and Fig 20(b) slaolAidn...j a 'I' *joint tot combined pi.oe, where.: one PiP; 41-(1.d: 21("Hal-(A::) s how an cutlet connectr for a 4:be±.: 0,.(itTet point, .).ahe.:re a. cotrbit.:1.:d..tslEpo..Prapia connects.: to a tar) th4 like Crlet sh.own4,. F414> witiS 1Sh:e odt.lt open.
and closed respectivel, (c) :and: (:c4) are end-views.
:=1;i1Pply directibn:and from the Qutlet directiQn.i
DETAT
Referring firstly to Figs. . and 2, a hot water rculation, .syst4ro. 1 1.5 to *.upply. sour 1.t.7;vie.A3 0;r stQreys.. Of a 1:-.1.31411d1-22.., At a main op8.-tAng 4tatdon it compxi:sss a val.:,(tad. intake 13 3rpm acetic wata. main, fe:c4ding into a thsscnagb-flow dir..enaHa, htane:T.-2 am-i tnencs -1r,tp the out flow of the aye ten, pipe oc.:n.stituti....-ng. the 4vs.tem.. fall generally: inte..P us misty..7.1.:..ntt3it 11 and individual SAPbthdacIni cdtt(:i.jits for the -17e...spectly.a:.sn.64:e.y.s as indicated, each secondary clrcui t represent. Ing a branch from thEk- d.hd b...6ittrj the other aec..ondary. clrcui.ts.
As seen po...rtic,17....ra.r.ty in 1.-±e as..sentially 0* c0.,±1..bi.n.d. ripe that is, a..pipe stricture in which an p.10.:e-± I 8 and ah 17 are a±1-.414..d cbh.6ntricaaly.,. n pdpe.
WfltCh in this sys.reir. as a. return between t.iie inner anA, outer Di Ji &S defjr s an cuter conduit 16 which-In this a7.-.s...r..c.2.m is th.,:e The conrlects to th.e secondary at TL'iOint...E5 which are: made rhe fh.e of the 5onJult of the.
all...a similarly for rhe.innon :conduit, the, Dpe1'al-.1ing stru.r2tre i2 0ut.ta.....0w. 'cond.:At 12:: run:8 IT ran the COld.vate'1:7: supp.j.y. 13 th.rour.!::;t the heater 2. and to a con:fluence joint 9 where it:mer.gas with the o:ilter 5araduit 16, at the combined PE:IPe 14 At.that cejl.fiPence tel..fit the inner 2.0E ft:7)Fri the '5,01tabifltd 8*/..5t..t 14 th ci s.i.iucri.enJ..pe return conduit which passes thro.gh the system and bd.rat to the heater Tije rhth:r7a niondu it 1";.* j o I us the eupply supply TrAill khbVh. no inner) -2,-T.I.etEE'si the 22, 3a th.a--.i.t the dirb.:Lidat..ifi.g sy.stem is. repleni..s.he.O.
neede.....c4.e.aeke.t.f.Z.ow 1 Olt oh secpndarj circuit -24 has a series of user. outlet point.s 5 which in this embodiment are mixer taps or not taps eadh. 1.36.1.J5.± 5 a sub-branch. f±om. the. s..s...:-'7.0.ri..dAiiry.
CO circuit bnuh 03 ÷'O...rEmed, at a c,...i..n.t"*.c.r may no thatu=-,.e.0-.'...,4here th.He..seePhMary bv.aaeh from the primary cln.c.±.u.ie, so that.circulatinri flow arbu.nd the system without the formatlen spa.ce., Per en c' (pn± ..new.n.) is a..-.FL the tap kitewu per se, On each.secondary circuit the ii mel cam t Ie t point 5 rep...r...e...seIlts,. a terminus or sentinel point for that ser..0..ndary. circuit bren,ch..,.. wheife the seemdu.Ty circuit 0..11+Ajlow ent.....ers:the inner c..onduAt:and *lovis baCk tpward5 the ope::::5Atihq (-17:::eht:re 'and ultiPie.t.e....1 pump in. Flu, d, reference nurn..(2.ral d g.e.neErally desicmatee, a.
functional posit..1:on for one more flow-ciorltr©1. devicez. to SPEritral cDmrrunicat ion bietW.e1:".:fl and seccncary circuits,. Or me fnmcfinn ny means oitiwh4oh botb.
inner -and outer conduits can be-t.a..1,:.1y. :shut off fre.f.;. the fur OT' s'ecciTI:daTy %hOth'..1"..
regniAL.fon OT bAlHal.ncang, by means of compeh.shtion is fbr' th..k?.! effects of supp..ly iengfh fur the different seno..J.,1,ciary scE.
Se*;eh in a blinding, a sidlied, per±S.on is fflmili4f. with bala:).:11.n...g, secondafy rjnw at, fHh..e io.w..EsEs* fhe liLOSt. restricted reg.:::).4..t1.Q.J.a and the highe...st sin.c.EtheE g'f..qaf.'est SfeS....S.life lOSS. d.u.s to hsight.
Rbgulation batance ICprefer,a.bly: ar.P1.),Jed.. on. ui:..17.1e.E ref.,nrn, err of a..s...a.c.:qh4.r.y prcoolisE with coitbin.nd ^ O 2v51, prsp.o.sals foT re.gulato±...s fpx pressure ba:.anci flu have not been ma4e for do ubi.e pipe a.1;,:. far-ias are aware, and the, sddtesT8, that Fig..: 2 disposiorion. of these. faciliti.es.", in nfl.ibh each secp.n.,Swy circuit nasa nei,1-P1act..717.'s ch)mmiss40:.,:ling /eP7.1.1...:-J.i.*0.x.. 7.arLA valvt* 8, po.:sititn...ed ii Lb the 2:5 isolation valve 8 betw...e11.. f.'1E.iie.-iuiL:a:...tbt 7 and the p-ramariv..ca...ncit. 11, and thE.:J:, cmammissdonim:g arldi flanct1.0sis be.inu performed by secarate devices " T.1.1.ey m..4.y in acne embodiment a be 12.0t..1fognicA by the sgatts,-devic., as n/c:,.ntfb.ti.f,id bflaw, but senarate:provisior is creferable because simplicity siOnificantly.7.neduce.sice,,,* An thce to...r sn:pEwn.: ^ 3-.5, is to be connected into a n'on, comb:I:fled pipe 14.".. and. ft:IcAP....priis.laiS a Itlaih bbl*:. 71 '-.e..inet-nabi brass, of conf ci u Uteppofitely-direntea, und.ons 72 wfth C &c tn.rea4s. and rruinc inte.f.naA 721, each having 'a stop: sii0i:11.:(1.17 722 to defdhe artd fimif. the Of in8':..e'..rtti..61,1 of an b'.Eit..,,St pipe of the combined pipe -In the embodiment sho.wn, cf. the p...hpe ny cmi of U or re Ud ciampAng rings 74 Wi:lb sri inward fiance r:,haps an slJt.w.a.r.d flan.g.e. 141 on the OA:TJESIX71. 01 the ittee.ene, held:tap the eip'e in 1-...,bait1ch And in relation,: at the oursah...e, thhe moahtth s..0.14(.7.;.entris.a3.iy the ma in bore of the bad:V.' 71, SOI as to match the fbtLE anc. pesitlen. at tI ax: pa pe 1i 8 of tint heriibined: pipe Conzeht:ric mepatihq pt he ihhet: ac segment 7:; way be, a. g by means of v-e*sh.rthting dismetricaAly-opposed.) htxnha, Thna or the 11..k...e- 3m the the enA cpa..nJJic1s of the php6i s,egm.e,nt 73 meet cloeay adj:acent the, Et...7:sp.cse,(1E thi:stn J Th ecin:.,s, et inner pipe I i of t ne cs.Tubinh0 pipe albeit without an ah.:tpaJ seale so that eEfteptively the ePtet ficw conduits coupflom. ann hetarn) ot the coMbinaa pipe cehtinue, through: the regulate::: device, 7, the fnhc:iifehai elemehfi of 'the, 'ae7ice, Hc., an e:ccloach, mePhaalam get:letally cesJqrLatecI 75 7 SIC r vetit:bly eTeciflet.h,g, the mite r: tar:olthre. ihher conduit. ...:7,:pecifically occlusion Is in the ihnar pipe se.glhent. 73 of the ctc c ic n et a plate or.vane 7"5:6.qarT,i7::.E.:Ed an the pf a spindle 15$ 20. tafOalh: a small hole in the wadi off the inner-pipe, SE:e....4Meht. 73, 4.7....",V.P.7"8.A.,,51' the 6I-Jt..",:tiond.t1.1''' 16 and:I:O.:in.:a integrally: a ma:LT: shaft 751 which is mounted eettay.a..y tnTehigh a hole in.the iL of-the wft.:T1 a seairnq r inc 4.5).* to prev.sht The top-of the main: Shalt-7..51 has a alatte:d. con hool head: 752, :En,:d it ia.S.h,:f:dith.d.:Cht at its tpp, end by, a locking N.fthi:aa eZtetraaJ tncae Opgping..,±h a. Cora:.hEr.9:CP.j.
t1:e toneaf:t shalt: arra -ss7i.n.ci. a top tool engagement form (hate, e, nut) that It can be fi4htahe.d.
te the.- 7:31 at -any angular ord.....ehrt.ation after the atilY E=.4.P.gje "a.a.S.:bea:TIE a-,:11:14$ted "at.nP n.e.:34..otted. control head. l'Ht3:t, A the vane 75.5. eetwea:s the ftdAy -opam,., .anoWn in. the Ftcaree in which the vane. Is 0:J.::6Sehted side-on to flow in the inner connie it 15 and preaea:ha minImum. maxim..i..4m: occiusion cpnalt.c.*:0", in anron the. vane face:s tha-Pjcw hhd:occludes most:hf the inner coadajt 1.j5. In the closed conaltion. the outline, ....s.nage oh tr.i.e vane substantially complements that of the csn.d.1 14.t: interior, but there is no need fb:17 a psattivs seal:against the because this; device Cannet ih any PasE.:43: i6.0.1E&te the hecendhIt At): Cnteuit (the uutitr. h.:and:L:417' b' --rig arid provided by the iaciatieh. (aupp,:;Ly pressure db.i3e E,;,..idth a can ohly c...cciude the dohdhlt provided. -that it crap:. be c:m4 at. a be...'reb±ea 01 L.(1.juctment. Adjb8tmmnt or bai an c.1. nc of. Supply p...17..E0Stte by selected decree of 31:a tH:=Jthr..ri fl d2oh th.e. secorldamy. q.1.-r.f.3;ajt, understood 12.1( The commissioning regs1atbi can ual remoxe be a. re.L.a.s.j.vely at.d.
19' -1?1.<2.11.st j..j how details cf. arl isolation. vaive, J(fl C 1L3r 2ji pi er. Q:LC the f:Lo' COFLCtU fts tr..21.11 0-1,)TeE anfr;,,t.berH., repadr., Tto isOinti,on val...v.e. 8 is a ora rt. e t trri valve co.r.ma:At.ibq A a body. ar hou.aing 8:70:and -sCia...6A8O,E member The c.r.).4i...5.1sfs. of a...maAn..bo...dy 871 and a retaln..e.r.b.b.d.y. p.oTtIbi.,.] Each body port ion 871,872.
e...Mapm.i....s.Cs a tubular ontes union 8E73 51.zed tc,. r....ebeivb. sliSidngly afl En of...a reap.....b.bMiy. pbte:b 17, an ext.....fclina.:1 tru for the sealed securing OJ the 00t..Sr pd..*. The ItAlb body portion. 871dat ices an. inter for cavrty for the ball the dib.su.re me.roj).(3..r 8:60i and the bonnet 974 of th..t.'orlue which $:1c.]".44gf a pa"kih.fl-seal 975 and retaining nut 876 for the actuating sp.in.dd...e 853. of the clb:S.1.1..te Jfk:Itber 8I60, i-ctua Lion c6.6.vent.d.onal tarn handle. To 1..4Thecly p6rti2n.. 81:2 screws tatv the raifl p.ortiaa 31to e...11.c1():...S:.(3 the valve mechan ism and hold the comnonents in ObbOad. pad:it* bt.Sc ^ uni0 COMt6hent-8:80, are betwlned in. MbAz.. heAd between tbe body pccar±i...erls Dy ex.Sernal. fla.n.cjb 4$.$, and these proud, do both pail cherel c',e:413 for seal ing around the hail. e61,. and tubes $82 for abh.httlbh.,..41th the -.nnet treturn) pipes of the cironiatlorl udtc1 The. haye te t reeler extensions $84 ±Ittin.8.3 rn Lu the cwbe...r wn.A....on, tubes. a73.* of t no nocy petttIons whose.1.nt..,.=',:,T.:17i1.caasreter matt:h.:es: that. at-dut#± p ps, or^ the. Herld, surfaces pt these ex...tenE.:si.ons.
^ for the cuter pipes The inner union aMe cOnEbentX8LJa.y0 amet.
(.2,<aP.epOneEnt,E8 6 8.8 by support meMbomb 98 6 in -the, fOrm MT short wells DT fins extending axially to mibk.miso flow. dbsMsuo7Ljo;ra... 2 3
TEVIO opposeb Zino are show; other numbers and she as may be 0SSOA Pip, 9 aTh'Tewa t II&tL tb.c, meinbor con:sista AX a 'main outer tube.8A4 ham 4A24 C tpime-rioai and a-s aysiabmicad. a6E9 Lacing ohrh an annex. tube 6.66 Jt IS ShiapOkted. 66ASi8ntritAlly. wdth the. ouMer tubs 804 by means Ct anppnEht WC t. 8 67 which-i. in rite On'.rLuo ndi. Lion ct the valve, msy eytend as aontin:uationo ct the support. we us or the Seat.1.1.1-7.1.ion The dialtitenS of ih'eñnrter and hAte± tb0,821 18164E,:866 gsneirally,ffats those of: the ihnop qh0 pipejs.. 18,11 of the. main. AohbAif, so hhat etreorLivelv of a. tnii witt neduttioh of floc..e.J raJhosn-sebtabm throAgh the tr.alvo in the opHe:h sEonditidn, In the c6hdition., with the aptualing spisdle E:62E tut:had a.
gharter turn, ..4..the r ur.thoe 86M ithtrnsE arpnnb: to cil.ns..c, ott entirely the pipea:at botb sides af the: vaae 8, hsainhq at.....0hAn the seats 613.1, of ths '5Ab.At 'hnibht Seals at these pbS.rita may be previeed. by resilient 01 defOrMabIc S in shvn di cc coo a:EE:s1 20: .1-r±sTri.b.c.r. is pt..(7:-....side4 sealdn.t.i ua r nt union tate 8E2 of tte se/sit.. hAion 'and. the inner tube 88:1.6' Of the ball 861 in the _Open position. Close proximity sutfices for ordinary beCaus.4,,, the same system water 1a ores-out in both: con-dnits and a.. modichm of lsahahe is not..harmfAi provised that p±,esut" Is Inacion.vc-ntional.b.ei I nuive s sphhTf...Aal Imali surface segment ma tee-an annular tauter seal:whi.ch fully fliaaes or nhoPkt.
L' nun bt' a sinslb oipSi: IA the ple...6-ht:V.11:e tn'ott: is an acAitaO:171/a..i. inner pipe inner tube 882.. of. the 30. unjr,defining.0.WS inne.E27 t2.8 tic hasEcIrta.o:e the it wiiiA su-bstantiaii close off the the insx pipe in the oinssA, pdaltion although it will Ash fully seat it H.A...SISS sped as measnres are taken, An in the bpon posiltion, a degree of leakage hi6:Lhis ppattisn 35: hht.8...swevor in the present a flew which.
can't. in'uour:y OirOnlair(as by ob:::',MO.PiMatiOO n.ntSbn. Ohtftb: and ssnSurts -ts st: special value. bebassoilia anahdaa sanitary operation,. A furtsr featuas: nere is theme:fore: to in the the boll merdaer 8:.61 on one bOth Esides there-of, a. feeSS...S:ed: portion 866 ±SIntIve,to 3 spterdtal:shape envelops:, shhh as for exampio.: fiat rob:Pane an' inicatcd in ddlitdd. riffles., in thd closed: condition, the recessed port:ion 8E6E8 is,,.apaced.. away from Hend a t the udion. tube;862 and pi:it's the obt-ra.o.w. and 7.1:7eturt: chhdhlt.a into commaihacation. for nnOntantini. flow rds. anner arid coliddit.n on that si dc of the Vai7e, thc -oive. as.;:t Whone Tema:Inn compreteiv 2i.us-e6 by the outei-seal B 81. This enables. the branch conduit which mdc,tt otherwise become static..and...nbnesanitdry Ltda.:tit tb thaintarn a...b:ibtdiarin4 flow a I t. tough Lbe. user point i s cut 13 bf bberatiba." .ad.E that tfie, wtble system abbw. an a! t. e mat a to e.mborlitiont,of inchlatidd valve. ftora 4'..1tbh the iribsa.b.ri.e..,moinber is a cylindricai bl.ug of the valve body.
p...1.mg can. tat. in a unriedrm-oect...bon core at:caning: the bnps -amln, so L.h..n.a. the valve housing cab be 8. sironie OlAcs..k wttn a transverse bore open at one side. This rePesellt..$ a P0..t.0fl..1.2.0 cup C. a lL a sPOUrIC...1.
ball member, A "top bonnet -OI..ate mounting the 20. operating spindle cU.Ld closinci the system with sa.ssecuren nn over the cpenanu The general principle of operation., of the pa.U.c.15. cl.Ppl.)TO bociy. a is mars a barbT, side rad..e.s6,.dd portions 768 (tecs8sed relative to the. cylindridt1.l.. nrir.fiadeD are ntb:Yided on the oaivn body so that in 2.5 the closed nehdltdbn., there is flow communication. between, the inner andout 22 OJh Cli On I flO SaPt cne ate the same in rrincipl.e ex:a.*.?ft that frat.'eS are shaped to:COOJo.ibeiht d eylinArital rnfth:c As before, the dnadas-may provide the seal inrebrally, or separate seal gler.,lbers It ray be menribned, that in ths,ba.1.1 valve and pjmuccE valve describtrd finaw, the various eicia.entn may be Innda, ftblr. Metal copper, nteeh or from engineering J.J.*.ntii.ha..., aCcording to 3 5 1.4 to 16 snow an alternative effnodiment of the plug-type valve;41.th, a tv1.1:_hAtItEad closure iti.thberi the body havdta: an OC=t.4.9.Pm..4). exterior fC:Yai Pigs 17 and la show an. aiterbdtivs ineiaticd ydive embodiment, .:8E8 in the iscaation" vaime.
etlabtlibant but nhOWintfi an altd±nntive in Which sealing of the vej.,,ve sines insert:et' to-either SidbE of the hall, froTh: the union tubes shown), 19 shows scYteatT.caj. ly frow the flinhtioh commIselutidhg realater ahe the iselataoh velVe can be hed.lba.:deA The figh-,,te i>hOws, in:crnsse 6..'ectio.x)d an I:solation 1,7):4.1J el:PS.U.te f13CD Wd-Lh as ehen ih. e. '2 t.ii. effiboAdik..ert..s-df F.tc 0 and Fig,. The bail is forme in two separate haive to be bonded taQether i...thas can inne...d be the manner d.:f nioduOdhh. the valve members: ih: embedlh.ents. f-7.4ade: rechh.ae.e.: are pa,Tpyleled ae eLer bhe two. 'halves: of ttle be.id membet npdfltile is fitted:, thr...nu*qh oplatied: holes eh oppeisire sides of the ihher tube se: as to be rotatatdet, The ihnex epdhdle car:rdes.a circular -crane, sized occupy: mest ut the inteirn.4'. cresst,,,..eCtIO:n 0:1-1 wneh pe..rperAti....cej...ax. the: aA.1.:x5. so it can a.:nt a..'sH the:.
meather..: of a daaumb;5..E;d:.o.ning reg.tuLater. in the: manner described ebove, The: skilled oe...rson.I nedt:::etand, th..at montified yei.ve doe use member such as that shown in Fiq, 19 can be incorporated inns an:Lsoia...........va1v. The inner spindle operates the,...e.c....1idarer vane can be controlled three4h a c!fl,aat:r actuator shaft, coaxial with the actuator Which svrns, the valve closure:body: ilEra.
Finally, Fig, 20 shows Hoptions for connections of the 71 e6thbihed. showa. a T-Ipint QI conEfa14e5ce.
typc, where the flews in a combined nine aro to s.eparate flows in eln.g.i.e: pl..pe..e. The main 2-member has an HOtte,"± v811 opening for brerhhAhn out the inhe.:.:ttri'nei "ht.:6 wftica adepted having a.. supplenotitery end.. splighh: ean.
no inserted., single iAteXmefjdute: dtelTjetar tirt,--.Etnger: &mallet than the 0=e1.: pipe) and: the diameter or the inner pipe, which ia also: the: diameter. Of a: tnbular. angle piebe-into: which.
end naiget0 e.danter it Lhe-uu :,3h.a.wa a ---ictihtE for c....,:dmnined pipe. . in whieh...:all three arias are of combineci pIne st.....7:uct.are.., :and..s..n...owing CU orereinreci..a..37r.:,:-..:n.ge.m.<:?,.nt in which the fil()Tig in.. tfle inner ctinnit the side a.r.m (branch of the T.: has a O.fltVe.:. fbiloWahnE AEG ant-ehaeo....flew direction, so that the flow from the branch: ddrection. 1th rig* 2()(AdY)E. Joins Lhe inner ttAof 2 6 the main chrh:bins.S pipe thtshtst..0 =left in Fig, .2e.:Y(.1).):.):. thhes4it radhus, ths inner pipe sesimeSs mer.gIng F'inai Iv Ftt.gt,. 21 snows schematically a. cs.s..nsetst for use wnehe a sembines pipe mhsss fitting such.s.s. a t4p. where. a.
:single hot flew is expected. H-±.11.1n ii easentlali_y an adiat......tst wtLOtE the inner conduit temina...tes at an ppena.ng 8h.olt of: the Hend the oflttt pipe, the stA. th..e lh.6e±; (ib.hdtt being, 1 3dd.a.1 suppexts as. shown. when the tsp not :..an.o.wfli 15 ophs4 optfipw wsts thrshgt1 the..a..c.japt:gt in single direction. When tap i.s closed, water from the outflow gensisit.. reversed in. stl.shtish and returns thissgh the centred inner treiurn) conduit. as sbc,.,.wn,

Claims (18)

  1. CLAIMS1. A water supply system of circulating type, comprising a flow circuit for water to flow around the system and a pump connected in the flow circuit to drive the flow of water, the flow circuit comprising a primary circuit incorporating the pump, and two or more secondary circuits, the secondary circuits being connected to the primary circuit as respective branches from it, and wherein each secondary circuit has a combined pipe structure in which an outflow conduit and a return conduit of the secondary circuit have a common wall, and has one or more user points for water flowing in the secondary circuit, and each secondary circuit comprises a commissioning regulator connected between the primary circuit and said one or more user points of the secondary circuit, the commissioning regulator comprising an occlusion mechanism to C7c, occlude flow in the return conduit of the combined pipe structure, and an actuator operable to adjust the degree to C\I which the occlusion mechanism occludes that return conduit, -- and operable to set or lock the occlusion mechanism at a selected degree of occlusion.
  2. 2. Water supply system according to claim 1 in which in the combined pipe structure of the secondary circuits the outflow conduit surrounds the return flow conduit, they are concentrically arranged, and said common wall is the outer wall of the return conduit and an inner wall of the outflow conduit.
  3. 3. Water supply system according to claim 1 or 2 in which the occlusion mechanism of each commissioning regulator comprises an occlusion member positioned in the return conduit and rotatable so as to presenc a progressively variable degree of flow resistance in the return conduit.
  4. 4. Water supply system according to claim 3 in which the occlusion member is a vane presenting a maximum occlusion area at one angle to the flow direction, and a minimum at another angle to the flow direction, with a rotation of between 1200 and 700 between these positions.
  5. 5. Water supply system according to any one of the preceding claims in which the occlusion mechanism of the commissioning regulator does not operate to occlude the outflow conduit, or does not operate to vary the occlusion of the outflow conduit.
  6. 6. Water supply system according to any one of the preceding claims in which the commissioning regulator comprises no occlusion member in the outflow conduit.
  7. 7. Water supply system according to any one of the preceding claims in which the occlusion member is rotatable around a pivot axis which crosses a central or median axis of the return conduit.
  8. 8. Water supply system according to any one of the preceding claims in which in the commissioning regulator a portion of C7c, the actuator passes through or across the outflow conduit.
  9. C)J 9. Water supply system according to any one of the preceding 1-- claims in which in a position of maximum occlusion, the ()) occlusion mechanism does not completely block the return 7_25 conduit at the commissioning regulator.
  10. 10. Water supply system according to claim 9 in which in said position of maximum occlusion from 1-20% of the maximum available flow area of the remrn conduit at the location of the occlusion member remains open for flow.
  11. 11. Water supply system according to any one of the preceding claims in which the commissioning regulator comprises a body adapted to be coupled to adjacent lengths of the combined pipe, and defining a segment of conduit with first and second unions for connection to the ends of the respective combined pipe lengths, and an internal wall dividing the conduit segment defined by the regula7.or body into outflow and return flow conduit sub-regions or sectors, corresponding to the outflow and return flow conduits of the combined pipe connected to it.
  12. 12. Water supply system according to any one of the preceding claims in which one or more or all of the secondary circuits has a respective isolation valve for fully closing off both the outflow and return conduiT.s of the secondary circuit.
  13. 13. Water supply system according to claim 12 in which each isolation valve is a single device acting on both the outflow and return conduits of the combined pipe structure in the secondary circuit, and having a single movable closure element acting in relation to both the outflow and return conduits together.
  14. 14. Water supply system according to claim 12 or 13 in which the closure element of the isolation valve has an inner tube segment mounted coaxially inside an outer conduit segment so as to define inner and outer conduits respectively for return and outflow, the inner tube segment is supported inside the outer tube segment by a radial support structure, and the C7c, closure element is rotatable between open and closed positions relative to a housing or body of the isolation valve. C\I --
  15. 15. Water supply system according to claim 12, 13 or 14 in which 1_25 the rotatable closure element of the isolation valve has a spherical exterior surface portion of the outer conduit part to effect sealing of the outer conduit, or the rotatable closure element has a cylindrical or conical outer surface slidable in sealing relationship with a correspondingly-shaped cylindrical or conical seat of the housing or body of the isolation valve.
  16. 16. Water supply system according to any one of claims 12 to 15 in which each of the secondary circuits has the isolation valve positioned between a point of branching from the primary circuit and a first user poinc of the secondary circuit, and between the commissioning regulator of the secondary circuit and the primary circuit.
  17. 17. Commissioning regulator for a water supply system of circulating type, comprising a flow circuit including secondary circuits, and the commissioning regulator being for connection in a said secondary circuit for balancing supply between the secondary circuits, said secondary circuit having a combined pipe structure in which an outflow conduit and a return conduit of the secondary circuit have a common wall; the commissioning regulacor comprising an occlusion mechanism to occlude flow in the return conduit of the combined pipe structure, and an actuator operable to adjust the degree to which the occlusion mechanism occludes That return conduit, and operable to set or lock the occlusion mechanism at a selected degree of occlusion.
  18. 18. Commissioning regulator according to claim 17 comprising a body adapted to be coupled 7_o adjacent lengths of the combined pipe, and defining a segment of conduit with first and second unions for connection to the ends of the respective combined pipe lengths, and an internal wall dividing the conduit segment defined by the regulator body into outflow and C7c, return flow conduit sub-regions or sectors, corresponding to the outflow and return flow conduits of the combined pipe C\I connected to it.--19. Commissioning regulator according to claim 17 or 18 in 1_25 which the occlusion mechanism has features as defined in any one of claims 3 to 10.
GB1912848.7A 2019-09-06 2019-09-06 Circulating water supply systems Pending GB2586859A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1912848.7A GB2586859A (en) 2019-09-06 2019-09-06 Circulating water supply systems
PCT/EP2020/074779 WO2021043987A1 (en) 2019-09-06 2020-09-04 Circulating water supply systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1912848.7A GB2586859A (en) 2019-09-06 2019-09-06 Circulating water supply systems

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GB201912848D0 GB201912848D0 (en) 2019-10-23
GB2586859A true GB2586859A (en) 2021-03-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29911745U1 (en) * 1999-07-07 2000-11-23 Hage Fittings Gmbh & Co Kg Regulating valve for a hot water circulation line
EP1081438A2 (en) * 1999-08-31 2001-03-07 Gebr. Kemper GmbH + Co. KG Double tube system as tube in tube for constructing a sanitary water distributing- and circulating system together with sanitary water heating installations
DE10055117A1 (en) * 2000-11-07 2002-05-08 Wolfgang Schmitter Ball cock with co-axial water guide has circulation line and return line for standby built into standard fittings and valves
WO2017134151A1 (en) * 2016-02-02 2017-08-10 Equitherm Limited Water systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29911745U1 (en) * 1999-07-07 2000-11-23 Hage Fittings Gmbh & Co Kg Regulating valve for a hot water circulation line
EP1081438A2 (en) * 1999-08-31 2001-03-07 Gebr. Kemper GmbH + Co. KG Double tube system as tube in tube for constructing a sanitary water distributing- and circulating system together with sanitary water heating installations
DE10055117A1 (en) * 2000-11-07 2002-05-08 Wolfgang Schmitter Ball cock with co-axial water guide has circulation line and return line for standby built into standard fittings and valves
WO2017134151A1 (en) * 2016-02-02 2017-08-10 Equitherm Limited Water systems

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GB201912848D0 (en) 2019-10-23

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