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GB2011584A - Backflow preventing valve - Google Patents

Backflow preventing valve

Info

Publication number
GB2011584A
GB2011584A GB7845865A GB7845865A GB2011584A GB 2011584 A GB2011584 A GB 2011584A GB 7845865 A GB7845865 A GB 7845865A GB 7845865 A GB7845865 A GB 7845865A GB 2011584 A GB2011584 A GB 2011584A
Authority
GB
United Kingdom
Prior art keywords
valve member
backflow preventing
preventing valve
seat
outlet
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.)
Granted
Application number
GB7845865A
Other versions
GB2011584B (en
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.)
ARMATURENFABRIK U METALLGIESSE
Original Assignee
ARMATURENFABRIK U METALLGIESSE
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 ARMATURENFABRIK U METALLGIESSE filed Critical ARMATURENFABRIK U METALLGIESSE
Publication of GB2011584A publication Critical patent/GB2011584A/en
Application granted granted Critical
Publication of GB2011584B publication Critical patent/GB2011584B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • E03C1/104—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using a single check valve
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Domestic Plumbing Installations (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Check Valves (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The valve for insertion in a water pipe comprises a valve member 5 displaceable to cover or uncover air openings 9 dependant upon water pressure in a flow path 4 between an inlet 2 and an outlet 3. On normal flow the valve member 5 engages a seat 11 to cover the openings 9. If pressure in the flow path is low tending to cause backflow the valve member is sucked against a seat 10 to prevent backflow and vent the outlet. <IMAGE>
GB7845865A 1977-12-31 1978-11-23 Flow aerator Expired GB2011584B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2759248A DE2759248C3 (en) 1977-12-31 1977-12-31 Flow aerator

Publications (2)

Publication Number Publication Date
GB2011584A true GB2011584A (en) 1979-07-11
GB2011584B GB2011584B (en) 1982-03-31

Family

ID=6027928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845865A Expired GB2011584B (en) 1977-12-31 1978-11-23 Flow aerator

Country Status (10)

Country Link
AT (1) AT366443B (en)
BE (1) BE872548A (en)
DE (1) DE2759248C3 (en)
DK (1) DK587078A (en)
FI (1) FI783885A7 (en)
FR (1) FR2413506A1 (en)
GB (1) GB2011584B (en)
NL (1) NL7811928A (en)
NO (1) NO149705C (en)
SE (1) SE438345B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181819A (en) * 1985-10-19 1987-04-29 Bjorn Johan Erik Andersson Valve
EP0441151A1 (en) * 1990-02-05 1991-08-14 Friedrich Grohe Aktiengesellschaft Watertap with backflow preventer
EP0495372A1 (en) * 1991-01-12 1992-07-22 Friedrich Grohe Aktiengesellschaft Water tap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839650C1 (en) * 1988-11-24 1990-02-15 Hansa Metallwerke Ag, 7000 Stuttgart, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877789A (en) * 1957-11-06 1959-03-17 Sloan Valve Co Vacuum breakers
CH478365A (en) * 1968-08-07 1969-09-15 Landis & Gyr Ag Valve and use of this valve in heating and ventilation systems
DE2534175C3 (en) * 1975-07-31 1980-02-07 Carl Eggemann Kg Armaturenfabrik, 5860 Iserlohn Tube aerator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181819A (en) * 1985-10-19 1987-04-29 Bjorn Johan Erik Andersson Valve
EP0441151A1 (en) * 1990-02-05 1991-08-14 Friedrich Grohe Aktiengesellschaft Watertap with backflow preventer
US5079781A (en) * 1990-02-05 1992-01-14 Friedrich Grohe Armaturenfabrik Gmbh & Co. Backflow preventer for hand spray
EP0495372A1 (en) * 1991-01-12 1992-07-22 Friedrich Grohe Aktiengesellschaft Water tap
US5213268A (en) * 1991-01-12 1993-05-25 Friedrich Grohe Aktiengesellschaft Sprayer faucet with antibackflow protection

Also Published As

Publication number Publication date
BE872548A (en) 1979-03-30
NO784293L (en) 1979-07-03
DE2759248B2 (en) 1979-09-27
DE2759248A1 (en) 1979-07-05
FR2413506A1 (en) 1979-07-27
NO149705C (en) 1984-06-13
NL7811928A (en) 1979-07-03
DK587078A (en) 1979-07-01
DE2759248C3 (en) 1982-01-07
GB2011584B (en) 1982-03-31
ATA865178A (en) 1981-08-15
SE438345B (en) 1985-04-15
SE7813047L (en) 1979-07-01
FR2413506B1 (en) 1984-03-09
FI783885A7 (en) 1979-07-01
AT366443B (en) 1982-04-13
NO149705B (en) 1984-02-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee