GB191406679A - Improvements in and relating to Pressure Reducing Valves. - Google Patents

Improvements in and relating to Pressure Reducing Valves.

Info

Publication number
GB191406679A
GB191406679A GB191406679DA GB191406679A GB 191406679 A GB191406679 A GB 191406679A GB 191406679D A GB191406679D A GB 191406679DA GB 191406679 A GB191406679 A GB 191406679A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
piston
cylinder
actuated
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
Inventor
John Graham
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
Application granted granted Critical
Publication of GB191406679A publication Critical patent/GB191406679A/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
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve

Landscapes

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

Abstract

6679. Graham, J. March 17. Pressure-regulating valves.-A piston-actuated pressure-regulating or surplus-pressure valve, of the type controlled by a diaphragm-actuated auxiliary valve has the main piston fitted with a flexible disk or cup-leather packing and has a dirt guard fixed on the valve spindle just above the cylinder. The main valve 1 is loaded by a spring 8 and is actuated by a piston 4 working in a cylinder 6 connected to the outlet side of the valve by a port 30. When the valve is in the closed position, a flexible disk 7 engages the top of the cylinder 6. In a modification for use in hydraulic work, a cup-leather is used in place of the flexible disk. A flanged plate 44 on the spindle 5 deflects dirt into a chamber 50 provided with a blow-off port 45. The auxiliary valve 12, which controls the supply of inlet pressure to the space below the piston 4, is balanced by pistons 15, 18 and is closed by outlet pressure acting on a diaphragm against the action of a spring-loaded lever 27 fitted with an adjustable stop 29. When used as a surplus-pressure valve, the auxiliary valve is unbalanced.
GB191406679D 1914-03-17 1914-03-17 Improvements in and relating to Pressure Reducing Valves. Expired GB191406679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191406679T 1914-03-17

Publications (1)

Publication Number Publication Date
GB191406679A true GB191406679A (en) 1914-07-16

Family

ID=32374185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191406679D Expired GB191406679A (en) 1914-03-17 1914-03-17 Improvements in and relating to Pressure Reducing Valves.

Country Status (1)

Country Link
GB (1) GB191406679A (en)

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