JPS57127180A - Controlling valve - Google Patents

Controlling valve

Info

Publication number
JPS57127180A
JPS57127180A JP1364981A JP1364981A JPS57127180A JP S57127180 A JPS57127180 A JP S57127180A JP 1364981 A JP1364981 A JP 1364981A JP 1364981 A JP1364981 A JP 1364981A JP S57127180 A JPS57127180 A JP S57127180A
Authority
JP
Japan
Prior art keywords
pressure
set value
output signal
valve
pressure sensor
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.)
Pending
Application number
JP1364981A
Other languages
Japanese (ja)
Inventor
Eiichi Morozumi
Tadashi Kojima
Kentaro Inoue
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP1364981A priority Critical patent/JPS57127180A/en
Publication of JPS57127180A publication Critical patent/JPS57127180A/en
Pending 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid

Landscapes

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

Abstract

PURPOSE:To enable to hold the pressure within secondary side accurately at the set value by a method wherein the opening degree of the valve is automatically controlled in accordance with the difference between the set value given from outside and the value of pressure of the fluid to be controlled at the secondary side the valve. CONSTITUTION:A responding body 27 is moved downward by pressure-feeding the liquid within a primary chamber 24 to a secondary chamber 25 by means of an electromagnetic pump 22 driven by the signal from a driving circuit 9. If the pressure within the secondary chamber 25 lowers, the responding body 27 ascends. On the other hand, a pressure sensor 6 detects the pressure within an outlet passage 4 and supplies the output signal corresponding to the detected value of said pressure to a comparator 8, which compares the output signal of the pressure sensor 6 with the set value SP given from outside and supplies the deviation signal corresponding to the difference between said output signal of the pressure sensor 6 and the set value SP to the driving circuit 9 in order to control the position of a valve body 1 through an actuator 2.
JP1364981A 1981-01-31 1981-01-31 Controlling valve Pending JPS57127180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1364981A JPS57127180A (en) 1981-01-31 1981-01-31 Controlling valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1364981A JPS57127180A (en) 1981-01-31 1981-01-31 Controlling valve

Publications (1)

Publication Number Publication Date
JPS57127180A true JPS57127180A (en) 1982-08-07

Family

ID=11839068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1364981A Pending JPS57127180A (en) 1981-01-31 1981-01-31 Controlling valve

Country Status (1)

Country Link
JP (1) JPS57127180A (en)

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