GB1317259A - Safety cut-off valve for fluids flowing in conduits - Google Patents

Safety cut-off valve for fluids flowing in conduits

Info

Publication number
GB1317259A
GB1317259A GB1317259DA GB1317259A GB 1317259 A GB1317259 A GB 1317259A GB 1317259D A GB1317259D A GB 1317259DA GB 1317259 A GB1317259 A GB 1317259A
Authority
GB
United Kingdom
Prior art keywords
valve
valve member
pressure
seat
stop
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
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.)
Lane S E
Original Assignee
Lane S E
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 Lane S E filed Critical Lane S E
Publication of GB1317259A publication Critical patent/GB1317259A/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
    • 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
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure

Landscapes

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

Abstract

1317259 Valves S E LANE 19 April 1971 [30 Oct 1969] 53291/69 Heading F2V Above a predetermined supply pressure valve member 14 is spaced from its seat 7 and so flow takes place from the inlet 4 to the outlet 5, the valve being maintained in its unseated state by the pressure of the fluid acting on the underside of a flexible diaphragm 9. In the event of the supply pressure falling below the predetermined value, the valve member is moved into engagement with its seat by the action of bias spring 15. During such downward movement, a rod portion 20 of a releasable lock 18 moves over a lower, outwardly flaring portion of a stop 17 and then engages an upper, inwardly converging portion of the stop, the shoulder formed between the two portions being such as to prevent reverse, movement of the valve member stem 10. Thus, the valve remains in its closed condition. Re-opening may be achieved solely by manually withdrawing rod portion 20 and so permitting the inlet pressure to unseat the valve member.
GB1317259D 1969-10-30 1969-10-30 Safety cut-off valve for fluids flowing in conduits Expired GB1317259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5329169 1969-10-30

Publications (1)

Publication Number Publication Date
GB1317259A true GB1317259A (en) 1973-05-16

Family

ID=10467282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317259D Expired GB1317259A (en) 1969-10-30 1969-10-30 Safety cut-off valve for fluids flowing in conduits

Country Status (1)

Country Link
GB (1) GB1317259A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167531A (en) * 1984-11-28 1986-05-29 Paul Valentine Urbani Fluid control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167531A (en) * 1984-11-28 1986-05-29 Paul Valentine Urbani Fluid control valve

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Legal Events

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