JPS57144362A - Safety valve for low temperature - Google Patents

Safety valve for low temperature

Info

Publication number
JPS57144362A
JPS57144362A JP2821481A JP2821481A JPS57144362A JP S57144362 A JPS57144362 A JP S57144362A JP 2821481 A JP2821481 A JP 2821481A JP 2821481 A JP2821481 A JP 2821481A JP S57144362 A JPS57144362 A JP S57144362A
Authority
JP
Japan
Prior art keywords
spring
low temperature
valve
valve rod
conduit
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
JP2821481A
Other languages
Japanese (ja)
Inventor
Shunichi Nakatani
Katsumasa Araoka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2821481A priority Critical patent/JPS57144362A/en
Publication of JPS57144362A publication Critical patent/JPS57144362A/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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE:To prevent change of elasticity of an elastic body under low temperature and enable to set the popping pressure as well as the blow-stop pressure of a valve correctly by a method wherein a valve rod, attached to a valve body opening and closing the port of a conduit for a low temperature fluid, is elongated while the elastic body such as a spring energizing the valve rod or the like is provided at a part having a normal temperature. CONSTITUTION:The space between a helium vessel (inner tank) 2 and the wall 1 of an outer tank is evacuated. A valve rod 3 is formed by connecting a cylindrical spring seat 4, a column-like washer 5 and a pipe 6, and is energized toward the downward direction thereof. A valve sheet 9 attached to the lower end of the pipe 6 opens and closes the port 10 of the conduit for helium. Since a spring 19 is provided at a part having a normal temperature, the change of elasticity of the spring 19 under an extreme low temperature may be prevented and the pushing force of the spring 19 upon a stationary time may be set correctly.
JP2821481A 1981-02-27 1981-02-27 Safety valve for low temperature Pending JPS57144362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2821481A JPS57144362A (en) 1981-02-27 1981-02-27 Safety valve for low temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2821481A JPS57144362A (en) 1981-02-27 1981-02-27 Safety valve for low temperature

Publications (1)

Publication Number Publication Date
JPS57144362A true JPS57144362A (en) 1982-09-06

Family

ID=12242381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2821481A Pending JPS57144362A (en) 1981-02-27 1981-02-27 Safety valve for low temperature

Country Status (1)

Country Link
JP (1) JPS57144362A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200875A (en) * 1983-04-26 1984-11-14 Shimadzu Corp Regulating valve
JPS62213124A (en) * 1986-03-14 1987-09-19 Canon Inc Position detection method
JPS62166375U (en) * 1986-04-14 1987-10-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200875A (en) * 1983-04-26 1984-11-14 Shimadzu Corp Regulating valve
JPS62213124A (en) * 1986-03-14 1987-09-19 Canon Inc Position detection method
JPS62166375U (en) * 1986-04-14 1987-10-22

Similar Documents

Publication Publication Date Title
JPS6464609A (en) Pressure-responsive valve
JPS57144361A (en) Valve mechanism for low temperature
JPS6479441A (en) Controllable fluid damper assembly
JPS57144362A (en) Safety valve for low temperature
CA2066398A1 (en) Tank bottom diaphragm valve
US5520208A (en) Resilient seal for a liquid-gas accumulator
DE3272130D1 (en) Fast closing valve for a compressible fluid
US5097862A (en) Accumulator with a valve connected float
DE3260348D1 (en) Safety valve
JPS5618169A (en) Valve device
GB2112116A (en) Valves
JPS57134073A (en) Sluice gate
JPS56101472A (en) Expansion valve
JPS5639365A (en) Cutoff valve
JPS57144353A (en) Valve mechanism for low temperature
JPS55159382A (en) Valve
JPS56160472A (en) Hose coupling for faucet
JPS5655760A (en) Water seal device for fluid valve
FR2356863A1 (en) Automatic control valve for domestic shower attachments - has valve member moving between two valves seat to prevent ingress of air into pipe with fall in water pressure
JPS6458874A (en) Ball valve
FR2383375A1 (en) High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened
JPS57137782A (en) Vacuum breaker
FR2292912A1 (en) Automatic valve for closing pipeline - has membrane subjected to hydrostatic pressure from tank
JPS5520924A (en) Shock absorbing accumulator for externally mounting pipe
ES221408U (en) Valve of improved buffer tank valve. (Machine-translation by Google Translate, not legally binding)