FR2402138B1 - - Google Patents

Info

Publication number
FR2402138B1
FR2402138B1 FR7823744A FR7823744A FR2402138B1 FR 2402138 B1 FR2402138 B1 FR 2402138B1 FR 7823744 A FR7823744 A FR 7823744A FR 7823744 A FR7823744 A FR 7823744A FR 2402138 B1 FR2402138 B1 FR 2402138B1
Authority
FR
France
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
FR7823744A
Other languages
French (fr)
Other versions
FR2402138A1 (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.)
Ecolab Engineering GmbH
Original Assignee
Lang Apparatebau GmbH
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 Lang Apparatebau GmbH filed Critical Lang Apparatebau GmbH
Publication of FR2402138A1 publication Critical patent/FR2402138A1/en
Application granted granted Critical
Publication of FR2402138B1 publication Critical patent/FR2402138B1/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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
FR7823744A 1977-09-03 1978-08-11 DEVICE INTENDED TO PREVENT BACK FLOW, ESPECIALLY FOR SHUT-OFF VALVES Granted FR2402138A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772739801 DE2739801A1 (en) 1977-09-03 1977-09-03 BACKFLOW PREVENTORS, IN PARTICULAR FOR PIPE CUTTERS

Publications (2)

Publication Number Publication Date
FR2402138A1 FR2402138A1 (en) 1979-03-30
FR2402138B1 true FR2402138B1 (en) 1985-03-22

Family

ID=6018067

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823744A Granted FR2402138A1 (en) 1977-09-03 1978-08-11 DEVICE INTENDED TO PREVENT BACK FLOW, ESPECIALLY FOR SHUT-OFF VALVES

Country Status (5)

Country Link
AT (1) AT367823B (en)
CH (1) CH632572A5 (en)
DE (1) DE2739801A1 (en)
FR (1) FR2402138A1 (en)
NL (1) NL7806994A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340085A (en) * 1979-05-01 1982-07-20 Crawford Ronald H Pressure regulating device with damping means for preventing valve chatter
FR2471536A1 (en) * 1979-12-17 1981-06-19 Pont A Mousson Closure spring non-return valve for water - uses axially slidable plug guided by perimeter rails and hub rail incorporated in cage
US4489752A (en) * 1982-09-28 1984-12-25 Compressor Valve Services, Inc. Guard guided multiple element flow configured poppet valve
DE3616589A1 (en) * 1986-05-16 1987-11-19 Baelz Juergen Controls Backflow-preventing device, in particular in drinking-water lines
JPH0534390Y2 (en) * 1988-03-24 1993-08-31
DE3815861A1 (en) * 1988-05-09 1989-11-23 Liebherr Hausgeraete VALVE-BASED DISTRIBUTION PIECE FOR CONNECTING TO A WALL OF A CAVITY TO BE FOAMED
DE102015211070A1 (en) * 2015-06-17 2016-12-22 Robert Bosch Gmbh Pressure relief valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1162029A (en) * 1956-04-24 1958-09-08 Aeroquip Corp Shell retainer specially applicable to spindly fluid pipelines
US3193247A (en) * 1962-02-28 1965-07-06 Rockwell Mfg Co Sequentially seated valve
GB1266306A (en) * 1969-04-22 1972-03-08
DE2628239A1 (en) * 1976-06-24 1978-01-05 Peter Dr Ing Daublebsky Fast acting non-return valve - has lightweight valve head and guide, suitable for nuclear reactors
DE2650934A1 (en) * 1976-11-08 1978-05-11 Waletzko Alfred Apparatebau Back flow preventer between drinking and washing water pipework - has guide rings fitted between valve and guide rod

Also Published As

Publication number Publication date
DE2739801A1 (en) 1979-03-15
AT367823B (en) 1982-08-10
FR2402138A1 (en) 1979-03-30
ATA460978A (en) 1981-12-15
CH632572A5 (en) 1982-10-15
NL7806994A (en) 1979-03-06

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse