FR2383375A1 - High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened - Google Patents

High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened

Info

Publication number
FR2383375A1
FR2383375A1 FR7706916A FR7706916A FR2383375A1 FR 2383375 A1 FR2383375 A1 FR 2383375A1 FR 7706916 A FR7706916 A FR 7706916A FR 7706916 A FR7706916 A FR 7706916A FR 2383375 A1 FR2383375 A1 FR 2383375A1
Authority
FR
France
Prior art keywords
piston
valve
bellows
opened
spring loaded
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
FR7706916A
Other languages
French (fr)
Other versions
FR2383375B1 (en
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
Priority to FR7706916A priority Critical patent/FR2383375A1/en
Publication of FR2383375A1 publication Critical patent/FR2383375A1/en
Application granted granted Critical
Publication of FR2383375B1 publication Critical patent/FR2383375B1/fr
Granted 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
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0426—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with seat protecting means
    • 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
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • 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
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/082—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with piston

Abstract

The valve body (1) has a cap (6) which carries the central screw (12) and the adjusting spring (11). The spring acts against the back of the piston (10), and the valve is fitted with bellows on the pressure side. The bellows are fixed at the lower end to the casing by means of a seal (4) and press up against the under side of the piston with the joint (9). When the fluid pressure increases, the piston rises and the bellows follow until stopped by the washer (8). Further travel of the piston will allow the valve to open and discharge through the opening (7).
FR7706916A 1977-03-09 1977-03-09 High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened Granted FR2383375A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7706916A FR2383375A1 (en) 1977-03-09 1977-03-09 High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7706916A FR2383375A1 (en) 1977-03-09 1977-03-09 High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened

Publications (2)

Publication Number Publication Date
FR2383375A1 true FR2383375A1 (en) 1978-10-06
FR2383375B1 FR2383375B1 (en) 1981-08-21

Family

ID=9187800

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7706916A Granted FR2383375A1 (en) 1977-03-09 1977-03-09 High flow spring loaded valve - has piston with bellows holding pressure under piston until valve is opened

Country Status (1)

Country Link
FR (1) FR2383375A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306635B6 (en) * 2012-07-24 2017-04-12 Hennlich Idustrietechnik, Spol. S R. O. A safety valve for protecting hydraulic units

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306635B6 (en) * 2012-07-24 2017-04-12 Hennlich Idustrietechnik, Spol. S R. O. A safety valve for protecting hydraulic units

Also Published As

Publication number Publication date
FR2383375B1 (en) 1981-08-21

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Legal Events

Date Code Title Description
ST Notification of lapse