GB1266700A - - Google Patents

Info

Publication number
GB1266700A
GB1266700A GB1266700DA GB1266700A GB 1266700 A GB1266700 A GB 1266700A GB 1266700D A GB1266700D A GB 1266700DA GB 1266700 A GB1266700 A GB 1266700A
Authority
GB
United Kingdom
Prior art keywords
seats
june
chamber
projections
valve member
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
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
Priority claimed from DE19681750822 external-priority patent/DE1750822C3/en
Application filed filed Critical
Publication of GB1266700A publication Critical patent/GB1266700A/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F16K1/422—Valve seats attachable by a threaded connection to the housing
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0466—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a special seating surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Lift Valve (AREA)

Abstract

1,266,700. Valves. KNORR-BREMSE G.m.b.H. 5 June, 1969 [7 June, 1968], No. 28597/69. Heading F2V. In a pressure relief valve, which is adapted for use with compressed air installations, the closure member 8 is subjected to an adjustable spring force 15, is slidable within a chamber 11 which has formed therein a port 10 leading to atmosphere, and carries an annular resilient sealing gasket 7, whilst the spigot 1, which has formed therein the fluid inlet 2, is formed with two concentric upstanding annular projections 3 and 4 which together act as seats for the gasket 7. The innermost projection 3 has a height greater than the outermost projection 4, this being clearly depicted in Fig. 2, and between the two projections there opens a restricted throttling passage 6 the other end of which communicates with the interior of chamber 11 and hence with atmosphere via port 10. In operation, the arrangement of seats and the presence of passage 6 ensures rapid opening of the valve member upon the cracking pressure being exceeded, this being the result of an increase in surface area of the valve member upon which the controlled fluid pressure acts.
GB1266700D 1968-06-07 1969-06-05 Expired GB1266700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681750822 DE1750822C3 (en) 1968-06-07 Safety valve for compressed air systems

Publications (1)

Publication Number Publication Date
GB1266700A true GB1266700A (en) 1972-03-15

Family

ID=5692003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266700D Expired GB1266700A (en) 1968-06-07 1969-06-05

Country Status (6)

Country Link
AT (1) AT295269B (en)
CH (1) CH481333A (en)
FI (1) FI55081C (en)
FR (1) FR2010342A1 (en)
GB (1) GB1266700A (en)
RO (1) RO54416A (en)

Cited By (4)

* 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
FR2799813A1 (en) * 1999-10-14 2001-04-20 Von Roll Holding Ag SEALING DEVICE, PARTICULARLY FOR DOUBLE-SHUTTERING VALVES FOR FIRE SUPPLIES
US9816621B2 (en) 2014-05-09 2017-11-14 Surpass Industry Co., Ltd. Shut-off valve
CN114522817A (en) * 2022-04-21 2022-05-24 山西海普瑞科技有限公司 Nozzle structure for preventing high-pressure water jet from being damaged

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142549A (en) * 1977-09-19 1979-03-06 The B. F. Goodrich Company Relief valve
WO2023044099A1 (en) * 2021-09-17 2023-03-23 Emerson Automation Solutions Final Control US LP Systems and methods for reducing simmer in a safety relief valve

Cited By (5)

* 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
FR2799813A1 (en) * 1999-10-14 2001-04-20 Von Roll Holding Ag SEALING DEVICE, PARTICULARLY FOR DOUBLE-SHUTTERING VALVES FOR FIRE SUPPLIES
CH694969A5 (en) * 1999-10-14 2005-10-14 Von Roll Infranet Sa Seal for an additional barrier and a corresponding additional barrier for a fire hydrant, and a corresponding hydrants.
US9816621B2 (en) 2014-05-09 2017-11-14 Surpass Industry Co., Ltd. Shut-off valve
CN114522817A (en) * 2022-04-21 2022-05-24 山西海普瑞科技有限公司 Nozzle structure for preventing high-pressure water jet from being damaged

Also Published As

Publication number Publication date
FI55081C (en) 1979-05-10
FR2010342A1 (en) 1970-02-13
CH481333A (en) 1969-11-15
DE1750822A1 (en) 1971-02-18
FI55081B (en) 1979-01-31
AT295269B (en) 1971-12-27
RO54416A (en) 1973-06-11
DE1750822B2 (en) 1975-11-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees