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GB1293129A - Improvements in or relating to pressure control devices for fluid flow systems - Google Patents

Improvements in or relating to pressure control devices for fluid flow systems

Info

Publication number
GB1293129A
GB1293129A GB1884670A GB1884670A GB1293129A GB 1293129 A GB1293129 A GB 1293129A GB 1884670 A GB1884670 A GB 1884670A GB 1884670 A GB1884670 A GB 1884670A GB 1293129 A GB1293129 A GB 1293129A
Authority
GB
United Kingdom
Prior art keywords
pressure
piston
diaphragm
outlet
relating
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
GB1884670A
Inventor
Alan Arthur Fisher
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.)
I V PRESSURE CONTROLLERS Ltd
Original Assignee
I V PRESSURE CONTROLLERS Ltd
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 I V PRESSURE CONTROLLERS Ltd filed Critical I V PRESSURE CONTROLLERS Ltd
Priority to GB1884670A priority Critical patent/GB1293129A/en
Publication of GB1293129A publication Critical patent/GB1293129A/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
    • F16K17/04—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
    • F16K17/0473—Multiple-way safety valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

1293129 Valves I V PRESSURE CONTROLLERS Ltd 19 April 1971 [20 April 1970] 18846/70 Heading F2V A combined pressure reducing and relief valve has a pair of closure members 11, 13 co-operating respectively with inlet and exhaust seats and slidable on a portion 8 of rod 4 defining a chamber 23 connected at 22 to the inlet to ensure that, with diameters E, F of stem 6 and piston 8 equal, member 11 is pressure balanced. Spring 3 or a loading pressure admitted at 25 and trapped by valve member 26 acts on a piston or diaphragm 2 responsive to the pressure at outlet B or downstream of a main pressure reducing valve connected to outlet B. Excess pressure in the outlet arising after the piston or diaphragm has allowed member 11 to engage its seat causes continued rising of the piston or diaphragm, and collar 15 eventually unseats the member 13 against spring 16 interposed between members 11, 13. Diameter G of the exhaust port can equal diameter F.
GB1884670A 1970-04-20 1970-04-20 Improvements in or relating to pressure control devices for fluid flow systems Expired GB1293129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1884670A GB1293129A (en) 1970-04-20 1970-04-20 Improvements in or relating to pressure control devices for fluid flow systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1884670A GB1293129A (en) 1970-04-20 1970-04-20 Improvements in or relating to pressure control devices for fluid flow systems

Publications (1)

Publication Number Publication Date
GB1293129A true GB1293129A (en) 1972-10-18

Family

ID=10119411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1884670A Expired GB1293129A (en) 1970-04-20 1970-04-20 Improvements in or relating to pressure control devices for fluid flow systems

Country Status (1)

Country Link
GB (1) GB1293129A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032814A1 (en) * 1980-01-16 1981-07-29 Peabody Holmes Limited Pressure relief valves
WO2021240362A1 (en) 2020-05-25 2021-12-02 Bermad Cs Ltd. Pressure reducing and relief valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032814A1 (en) * 1980-01-16 1981-07-29 Peabody Holmes Limited Pressure relief valves
WO2021240362A1 (en) 2020-05-25 2021-12-02 Bermad Cs Ltd. Pressure reducing and relief valve
EP4158229A4 (en) * 2020-05-25 2023-12-06 Bermad CS Ltd. Pressure reducing and relief valve

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee