JPS57139823A - Self-actuated pressure control valve - Google Patents

Self-actuated pressure control valve

Info

Publication number
JPS57139823A
JPS57139823A JP2419481A JP2419481A JPS57139823A JP S57139823 A JPS57139823 A JP S57139823A JP 2419481 A JP2419481 A JP 2419481A JP 2419481 A JP2419481 A JP 2419481A JP S57139823 A JPS57139823 A JP S57139823A
Authority
JP
Japan
Prior art keywords
valve
outlet
pressure
inlet
pipe
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.)
Granted
Application number
JP2419481A
Other languages
Japanese (ja)
Other versions
JPS634204B2 (en
Inventor
Yaichirou Sawanoi
Michihiro Minato
Saburo Fujita
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.)
Teijin Engineering Ltd
Nakakita Seisakusho Co Ltd
Original Assignee
Teijin Engineering Ltd
Nakakita Seisakusho Co 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 Teijin Engineering Ltd, Nakakita Seisakusho Co Ltd filed Critical Teijin Engineering Ltd
Priority to JP2419481A priority Critical patent/JPS57139823A/en
Publication of JPS57139823A publication Critical patent/JPS57139823A/en
Publication of JPS634204B2 publication Critical patent/JPS634204B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To control a degree of opening of a valve by itself in accordance with a flow rate, by providing not only a main flow formed by an inlet, a valve body and an outlet, but also a by-pass communicating to the outlet through the inlet, a valve body back part, and a controlling pilot valve, and controlling by a reducing element. CONSTITUTION:Not only a main flow flowing to an outlet 3 through an inner valve 9 and a cage 5 from an inlet 2, but also a by-pass passing through a pressure conducting pipe 18, a pipe 41, valve body back parts 16a, 16b, a pipe 43, a controlling pilot valve 20, a pipe 45 and a pressure conducting pipe 19 are formed. The controlling pilot valve 20 is provided with an inner valve 22 freely slidable in the axial direction, in the inside of a cylindrical body 21 having an inlet 21a and an outlet 21b. Pressure of the outlet 21b is fed back to a diaphragm 24. A working point setting mechanism 26 of the inner valve 22 sets a position by press-contacting of a lever 33 and a conical part 31 of a shaft 14 of the inner valve 9. Pressure of the valve body back part is controlled by controlling needle valves 40, 42 and 44. In this way, the inner valve 9 is operated up and down so that pressure of the outlet side 3 is varied in accordance with the quantity of water to be used, which is suitable for reducing the water leakage of water service.
JP2419481A 1981-02-23 1981-02-23 Self-actuated pressure control valve Granted JPS57139823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2419481A JPS57139823A (en) 1981-02-23 1981-02-23 Self-actuated pressure control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2419481A JPS57139823A (en) 1981-02-23 1981-02-23 Self-actuated pressure control valve

Publications (2)

Publication Number Publication Date
JPS57139823A true JPS57139823A (en) 1982-08-30
JPS634204B2 JPS634204B2 (en) 1988-01-28

Family

ID=12131508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2419481A Granted JPS57139823A (en) 1981-02-23 1981-02-23 Self-actuated pressure control valve

Country Status (1)

Country Link
JP (1) JPS57139823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04120116U (en) * 1991-04-10 1992-10-27 小熊機械株式会社 switching valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430532A (en) * 1977-08-12 1979-03-07 Fushiman Co Ltd Selffoperated pilot working pressure reducing valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430532A (en) * 1977-08-12 1979-03-07 Fushiman Co Ltd Selffoperated pilot working pressure reducing valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04120116U (en) * 1991-04-10 1992-10-27 小熊機械株式会社 switching valve

Also Published As

Publication number Publication date
JPS634204B2 (en) 1988-01-28

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