GB797078A - Improvements in or relating to pressure control apparatus - Google Patents

Improvements in or relating to pressure control apparatus

Info

Publication number
GB797078A
GB797078A GB4869/55A GB486955A GB797078A GB 797078 A GB797078 A GB 797078A GB 4869/55 A GB4869/55 A GB 4869/55A GB 486955 A GB486955 A GB 486955A GB 797078 A GB797078 A GB 797078A
Authority
GB
United Kingdom
Prior art keywords
spring
cover
outlet
relief valve
pressure
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
GB4869/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB797078A publication Critical patent/GB797078A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0663—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using a spring-loaded membrane with a spring-loaded slideable obturator

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

797,078. Fluid-actuated valves. PARR, K. Feb. 18, 1955 [Feb. 18, 1954], No. 4869/55. Class 135. In a combined pressurereducing and relief valve actuated by a pressureresponsive diaphragm loaded by a spring, stop means are provided to limit the downward movement of the spring to prevent full spring pressure being exerted against the relief valve when the apparatus is not under pressure. The valve comprises a casing 2 having an inlet nozzle 5 controlled by a pressurereducing valve 8 and a reduced pressure outlet 7. A flexible diaphragm 13 clamped between the casing and a cover 14 is provided with an orifice 17 coacting with a relief valve 12 to discharge fluid into the cover and thence to an outlet (not shown). The valves 8 and 12 are connected by a frame 11 so that they move together, are urged downwardly by a loading spring 21 and upwardly by outlet pressure and a light spring 15. The stop means consist of an annular flange 20 formed on the cover 14.
GB4869/55A 1954-02-18 1955-02-18 Improvements in or relating to pressure control apparatus Expired GB797078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU797078X 1954-02-18

Publications (1)

Publication Number Publication Date
GB797078A true GB797078A (en) 1958-06-25

Family

ID=3759187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4869/55A Expired GB797078A (en) 1954-02-18 1955-02-18 Improvements in or relating to pressure control apparatus

Country Status (1)

Country Link
GB (1) GB797078A (en)

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