GB1490553A - Fluid flow apparatus - Google Patents

Fluid flow apparatus

Info

Publication number
GB1490553A
GB1490553A GB46301/74A GB4630174A GB1490553A GB 1490553 A GB1490553 A GB 1490553A GB 46301/74 A GB46301/74 A GB 46301/74A GB 4630174 A GB4630174 A GB 4630174A GB 1490553 A GB1490553 A GB 1490553A
Authority
GB
United Kingdom
Prior art keywords
valve
passage
oct
valves
check
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.)
Expired
Application number
GB46301/74A
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.)
Griswold Controls LLC
Original Assignee
Griswold Controls LLC
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 Griswold Controls LLC filed Critical Griswold Controls LLC
Publication of GB1490553A publication Critical patent/GB1490553A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members

Abstract

1490553 Valves GRISWOLD CONTROLS 25 Oct 1974 [26 Oct 1973] 46301/74 Heading F2V In a check valve a closure member 10 is biased by a spring 17 towards a seat 18 and is provided with spaced guiding flanges 20, 21 which move in barrel 12. The flange 20 projects into the outlet passage 28 to provide a throttle 77 the reduction in pressure in which is communicated via groove 22 and passage(s) 23 to a chamber 24 to assist in opening the valve. Two such check valves may be used in series to form a back flow preventer, Fig. 9, which has the chamber 52 between the check valves vented via line 44 and valve 50 when the pressure differential across the upstream check valve falls to a predetermined value which is sensed by ports 67, 70 and is transmitted via passages 45, 46 to the opposite sides of a diaphragm assembly 54 to actuate the valve 50. In a modification the passage 45 is replaced by an axial passage (75) in the valve stem 61 communicating with the line 44.
GB46301/74A 1973-10-26 1974-10-25 Fluid flow apparatus Expired GB1490553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41017373A 1973-10-26 1973-10-26

Publications (1)

Publication Number Publication Date
GB1490553A true GB1490553A (en) 1977-11-02

Family

ID=23623549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46301/74A Expired GB1490553A (en) 1973-10-26 1974-10-25 Fluid flow apparatus

Country Status (8)

Country Link
JP (1) JPS5083819A (en)
BR (1) BR7408966D0 (en)
CA (1) CA1066164A (en)
DE (1) DE2450465A1 (en)
FR (2) FR2250939B1 (en)
GB (1) GB1490553A (en)
IL (1) IL45802A (en)
ZA (1) ZA746432B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142123A (en) * 1983-06-24 1985-01-09 Teves Gmbh Alfred Pressure limiting valve
US5385166A (en) * 1989-11-13 1995-01-31 Cmb Industries Backflow preventor with adjustable outflow direction
GB2311590A (en) * 1996-03-23 1997-10-01 Festo Kg Venting valve
EP1329657A2 (en) 2002-01-16 2003-07-23 DIETER WILDFANG GmbH Stop valve
CN103742390A (en) * 2013-11-28 2014-04-23 成都欧浦特控制阀门有限公司 Air pump provided with telescopic spring
US10907743B2 (en) 2018-03-12 2021-02-02 Ishizaki Co., Ltd. Check valve and reciprocating body for check valve

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996962A (en) * 1976-03-19 1976-12-14 Rockwell International Corporation Backflow preventer and relief valve assembly
US4185656A (en) * 1977-12-13 1980-01-29 Braukmann Armaturen Ag Dual check valve structure
US4232704A (en) * 1978-03-28 1980-11-11 Amtrol Inc. In line back flow preventer
US4241752A (en) * 1978-05-30 1980-12-30 Watts Regulator Company Backflow preventer
US4231387A (en) * 1979-01-11 1980-11-04 Chas. M. Bailey Co., Inc. Backflow preventing valve
DE3742207A1 (en) * 1987-12-12 1989-06-22 Lang Apparatebau Gmbh BACKFLOW PREVENTORS, ESPECIALLY FOR INSTALLATION IN DRINKING WATER PIPES
DE3936962A1 (en) * 1989-11-07 1991-05-08 Waletzko Armaturen Gmbh BACKFLOW PREVENTORS, ESPECIALLY FOR INSTALLATION IN DRINKING WATER PIPES
US5107888A (en) * 1989-11-13 1992-04-28 Cmb Industries, Inc. N-shaped backflow preventor
US5046525A (en) * 1990-06-15 1991-09-10 Ames Company, Inc. Differential loading fluid check valve
DE4309085C1 (en) * 1993-03-20 1995-01-05 Schubert & Salzer Ag System separator
JP3016993U (en) * 1995-04-14 1995-10-17 株式会社タブチ Compound non-return type universal joint
DE202004016530U1 (en) * 2004-10-25 2006-03-02 Gebr. Kemper Gmbh & Co. Kg Metallwerke Pipe aerator and shut-off valve of a water installation with pipe aerator
JP5189399B2 (en) 2008-04-07 2013-04-24 国立大学法人信州大学 Check valve
JP5189403B2 (en) * 2008-05-08 2013-04-24 国立大学法人信州大学 Backflow prevention device
CN103697198B (en) * 2013-12-24 2016-06-22 泉州市沪航阀门制造有限公司 Double-chamber control mechanism of pressure difference principle backflow preventer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1710635A (en) * 1924-08-06 1929-04-23 Mortimer C Rosenfeld Valve
US3283772A (en) * 1964-02-04 1966-11-08 Donald G Griswold Backflow prevention device with improved pressure sensing means

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142123A (en) * 1983-06-24 1985-01-09 Teves Gmbh Alfred Pressure limiting valve
US5385166A (en) * 1989-11-13 1995-01-31 Cmb Industries Backflow preventor with adjustable outflow direction
US5503176A (en) * 1989-11-13 1996-04-02 Cmb Industries, Inc. Backflow preventor with adjustable cutflow direction
GB2311590A (en) * 1996-03-23 1997-10-01 Festo Kg Venting valve
EP1329657A2 (en) 2002-01-16 2003-07-23 DIETER WILDFANG GmbH Stop valve
DE10201626A1 (en) * 2002-01-16 2003-07-31 Wildfang Dieter Gmbh check valve
CN103742390A (en) * 2013-11-28 2014-04-23 成都欧浦特控制阀门有限公司 Air pump provided with telescopic spring
CN103742390B (en) * 2013-11-28 2015-10-28 成都欧浦特控制阀门有限公司 A kind of air pump being provided with coil tension spring
US10907743B2 (en) 2018-03-12 2021-02-02 Ishizaki Co., Ltd. Check valve and reciprocating body for check valve

Also Published As

Publication number Publication date
FR2257834B1 (en) 1979-10-05
FR2250939B1 (en) 1978-08-11
FR2257834A1 (en) 1975-08-08
BR7408966D0 (en) 1975-09-23
IL45802A (en) 1977-05-31
FR2250939A1 (en) 1975-06-06
DE2450465A1 (en) 1975-04-30
IL45802A0 (en) 1975-03-13
CA1066164A (en) 1979-11-13
AU7418174A (en) 1976-04-15
ZA746432B (en) 1976-06-30
JPS5083819A (en) 1975-07-07

Similar Documents

Publication Publication Date Title
GB1490553A (en) Fluid flow apparatus
GB1400057A (en) Fluid flow control valve having fluid pressure actuated sealing members
GB1051018A (en) Fluid flow control valve assembly
GB1295778A (en)
GB1392421A (en) Fluidpressure control valve assembly
GB1507209A (en) Valve assembly
GB1530012A (en) Modulating flow control valve
GB975799A (en) Fluid flow control valve
GB928299A (en) Fluid flow control valves
GB1132929A (en) Improvements in or relating to relief valves
GB1104590A (en) Sequentially-actuated fluid control valve construction
GB1426588A (en) Pressure relief control device
GB1444393A (en) Flow control valve
GB1534921A (en) Flow control device
GB1122316A (en) Improvements in fluid valve devices
ES8400575A1 (en) Zero internal pressure cartridge.
GB1249963A (en) Multiway valve
GB939999A (en) Plug type fluid-flow control valve
GB1338270A (en) Fluid flow control valves
GB1503842A (en) Compensated work port fluid valves
GB1212616A (en) Fluid pressure control valve
GB977381A (en) Improvements in and relating to constant-flow control valves
GB762219A (en) Improvements in or relating to pressure responsive valve
GB900153A (en) Improvements in valves for controlling fluids
GB1474582A (en) Hose rupture valve

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee