GB543436A - Improvements in emergency automatic shut-off valves - Google Patents

Improvements in emergency automatic shut-off valves

Info

Publication number
GB543436A
GB543436A GB1686040A GB1686040A GB543436A GB 543436 A GB543436 A GB 543436A GB 1686040 A GB1686040 A GB 1686040A GB 1686040 A GB1686040 A GB 1686040A GB 543436 A GB543436 A GB 543436A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
chest
fluid pressure
liner
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
GB1686040A
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.)
Cockburns Ltd
Original Assignee
Cockburns 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 Cockburns Ltd filed Critical Cockburns Ltd
Priority to GB1686040A priority Critical patent/GB543436A/en
Publication of GB543436A publication Critical patent/GB543436A/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
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism

Landscapes

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

Abstract

543,436. Valves. COCKBURNS, Ltd., RODGER, J., and GRANT, T. Nov. 25, 1940, No. 16860. [Class 135] An emergency automatic shut-off valve comprises a valve chest 1, a cylindrical liner 11 with lateral ports 13 fitted therein, an axially movable valve 6 guided within the chest 1 and engageable with a seat 8 on the end of the liner, and a piston 10 fixed to the valve 6 and movable within the liner. The chest 1 has inlet and outlet ports 2, 3 respectively. The chamber 14 above the piston 10 is connected through an adjustable needle valve 16 to a point on the outlet side of the valve, and a restricted duct 17 passes through the piston 10. In operation the fluid pressure built up in the chamber 14 is sufficient to resist the upward fluid thrust on the valve and piston. Should an excess fluid pressure drop occur across the valve the fluid pressure in the chamber falls accordingly and the valve closes.
GB1686040A 1940-11-25 1940-11-25 Improvements in emergency automatic shut-off valves Expired GB543436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1686040A GB543436A (en) 1940-11-25 1940-11-25 Improvements in emergency automatic shut-off valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1686040A GB543436A (en) 1940-11-25 1940-11-25 Improvements in emergency automatic shut-off valves

Publications (1)

Publication Number Publication Date
GB543436A true GB543436A (en) 1942-02-25

Family

ID=10084989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1686040A Expired GB543436A (en) 1940-11-25 1940-11-25 Improvements in emergency automatic shut-off valves

Country Status (1)

Country Link
GB (1) GB543436A (en)

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