EP2276979A2 - Bride composée de plastique et de fibre de verre pour réservoirs d'équilibre - Google Patents

Bride composée de plastique et de fibre de verre pour réservoirs d'équilibre

Info

Publication number
EP2276979A2
EP2276979A2 EP09742474A EP09742474A EP2276979A2 EP 2276979 A2 EP2276979 A2 EP 2276979A2 EP 09742474 A EP09742474 A EP 09742474A EP 09742474 A EP09742474 A EP 09742474A EP 2276979 A2 EP2276979 A2 EP 2276979A2
Authority
EP
European Patent Office
Prior art keywords
flange
flange according
fibreglass
surge tanks
holes
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.)
Withdrawn
Application number
EP09742474A
Other languages
German (de)
English (en)
Inventor
Ugo Benettolo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zilmet SpA
Original Assignee
Zilmet SpA
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 Zilmet SpA filed Critical Zilmet SpA
Publication of EP2276979A2 publication Critical patent/EP2276979A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks

Definitions

  • the present patent relates to the sector of surge tanks for pumps and boilers, and particularly concerns a new flange made of a fibreglass-reinforced plastic material for assembling on such surge tanks.
  • a known type of flange comprises a stainless steel plate with a welded threaded connection on the plate and 6 holes homogeneously distributed around its circumference. Said flange is suitable for being assembled on the body of a surge tank, on a flat threaded ring, by tightening it in place with 6 corresponding screws. The edge of the butyl (or other elastomer) membrane in the surge tank is inserted between the flange and the ring to serve as a seal.
  • Another type of known flange consists of a galvanised steel plate complete, as in the previous case, with a threaded connection welded onto the plate and 6 holes evenly distributed around its circumference. Said flange is designed to be assembled on the body of the surge tank on a flat threaded ring, by tightening it in place with 6 corresponding screws. The edge of the butyl (or other elastomer) membrane in the surge tank is inserted between the flange and the ring to serve as a seal.
  • the second being made of galvanised steel, is more vulnerable to the aggressive action of the water and has production costs that, though lower than in the former case, are still high.
  • thermoformed flange preferably made of polypropylene and fibreglass, for assembling on surge tanks.
  • the main technical aim of the new type of flange is to eliminate the above- mentioned drawbacks of the known state of the art.
  • an important object of the present invention is to reduce the production costs, without affecting the quality level and efficacy of the flange. Another important object of the present invention is to eliminate the corrosive-oxidising effects due to the action of the water. Another important object of the present invention is to ensure compliance with non-toxic requirements for use with foodstuffs. Another important object of the present invention is to be completely suitable for recycling.
  • thermoformed flange for assembling on surge tanks, made of polypropylene and fibreglass.
  • Figure 1 shows a cross-sectional view of the flange
  • Figure 2 shows a view from above
  • - Figure 3 shows a view from above of the flange in a possible embodiment with four holes (F1-F4).
  • the flange (A) is circular in shape and complete with 4 or 6 holes, (F1-F4 or Fl -F 6), evenly distributed around its circumference and suitable for containing screws for fixing the flange to the surge tank. Coinciding with said holes, there are suitable seats (S1-S4 or S1-S6) designed to provide ample space for the insertion of fixing tools.
  • the flange (A) comprises a threaded connection (B) located at its centre and designed for its connection to the hydraulic system.
  • the flange has the geometrical shape of a dome (Al), the lower portion (A2) being concave, designed to make the flange stronger and to reduce the quantity of material required.
  • the flange can also be thermoformed in another geometrical shape comprising a cylindrical disc-shaped body with suitable holes for the fixing screws, and with cross walls in the upper portion, again for the purpose of reducing the quantity of material required and increasing its strength.
  • the geometries obtained ensure a perfect geometrical compatibility with the surge tank on which the flange is assembled and the tightness of the seal assured by the butyl (or other elastomer) surge tank lining.
  • thermoformed flange is preferably made of a polypropylene (Tecnoprene) and fibreglass.
  • this plastic material was found the most suitable for various reasons: it is certified as non-toxic by the Food and Drug Administration and consequently suitable for applications with foodstuffs; it is unaffected by the corrosive-oxidising effect of water; • it is fully recyclable. From the tests conducted, the flange was found amply compatible with the temperatures and pressures to which it is submitted even in extreme working conditions.

Abstract

La présente invention concerne le secteur des réservoirs d’équilibre pour des pompes et des chaudières, et concerne particulièrement une nouvelle bride composée de plastique et de fibre de verre destinée à être assemblée sur des réservoirs d’équilibre. La bride présente la forme géométrique d’un dôme, concave sur le dessous et conçue pour la renforcer et réduire la quantité de matériau nécessaire à sa construction. Ladite bride est caractérisée en ce qu’elle est formée de manière à garantir une compatibilité géométrique parfaite avec le réservoir d'équilibre sur lequel elle est assemblée et à garantir l’étanchéité du joint butyle (ou composé d’un autre matériau).
EP09742474A 2008-05-07 2009-03-24 Bride composée de plastique et de fibre de verre pour réservoirs d'équilibre Withdrawn EP2276979A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000138A ITPD20080138A1 (it) 2008-05-07 2008-05-07 Flangia in materiale plastico e fibra di vetro per vasi di espansione
PCT/IB2009/051219 WO2009136301A2 (fr) 2008-05-07 2009-03-24 Bride composée de plastique et de fibre de verre pour réservoirs d’équilibre

Publications (1)

Publication Number Publication Date
EP2276979A2 true EP2276979A2 (fr) 2011-01-26

Family

ID=40302916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09742474A Withdrawn EP2276979A2 (fr) 2008-05-07 2009-03-24 Bride composée de plastique et de fibre de verre pour réservoirs d'équilibre

Country Status (4)

Country Link
US (1) US20110049162A1 (fr)
EP (1) EP2276979A2 (fr)
IT (1) ITPD20080138A1 (fr)
WO (1) WO2009136301A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020171739A1 (fr) 2019-02-21 2020-08-27 Yazykov Andrey Yurievich Bride

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2109316A (en) * 1936-05-16 1938-02-22 Harley Davidson Motor Co Inc Oil tank and battery assembly
US2340125A (en) * 1942-01-14 1944-01-25 Chrysler Corp Fluid pressure accumulator
US2833325A (en) * 1954-02-09 1958-05-06 Nat Screw & Mfg Company Countersunk flexible head threaded fastener
US3016463A (en) * 1958-04-28 1962-01-09 Smith Corp A O Multi-layer vessel having a neutron absorbing layer
US3082022A (en) * 1958-11-03 1963-03-19 James A Moore Coupling for plastic pipe having segmented interlocked clamping rings
US3214201A (en) * 1962-05-29 1965-10-26 Ceilcote Company Inc Pipe flange
US3368787A (en) * 1964-08-26 1968-02-13 Texsteam Corp Flow regulator with radially expanding elastomeric block
US3282459A (en) * 1964-10-02 1966-11-01 Allis Chalmers Mfg Co Pressure vessel having concentric casings
US3380470A (en) * 1965-11-30 1968-04-30 Texsteam Corp Flow regulator with radially expanding elastomeric block
GB1599363A (en) * 1977-03-31 1981-09-30 Wavin Bv Fibre reinforced thermosetting resin pipe part
US5320752A (en) * 1992-11-03 1994-06-14 Clack Corporation Water purification system employing modular flat filter assembly
DE19953746C2 (de) * 1999-06-21 2001-10-04 Rasmussen Gmbh Verfahren zur Herstellung eines Stutzens
ITPD20050191A1 (it) * 2005-06-24 2006-12-25 Zilmet Spa Raccordo filettato per vasi di espansione, serbatoi e simili
US8992775B2 (en) * 2006-10-31 2015-03-31 Pentair Water Pool And Spa, Inc. Diatomaceous earth filter apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009136301A2 *

Also Published As

Publication number Publication date
ITPD20080138A1 (it) 2009-11-08
US20110049162A1 (en) 2011-03-03
WO2009136301A3 (fr) 2013-01-24
WO2009136301A2 (fr) 2009-11-12

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