FR2270498B1 - - Google Patents

Info

Publication number
FR2270498B1
FR2270498B1 FR7415615A FR7415615A FR2270498B1 FR 2270498 B1 FR2270498 B1 FR 2270498B1 FR 7415615 A FR7415615 A FR 7415615A FR 7415615 A FR7415615 A FR 7415615A FR 2270498 B1 FR2270498 B1 FR 2270498B1
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
FR7415615A
Other languages
French (fr)
Other versions
FR2270498A1 (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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR7415615A priority Critical patent/FR2270498A1/fr
Publication of FR2270498A1 publication Critical patent/FR2270498A1/fr
Application granted granted Critical
Publication of FR2270498B1 publication Critical patent/FR2270498B1/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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/042—Check valves with guided rigid valve members shaped as balls with a plurality of balls
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
FR7415615A 1974-05-06 1974-05-06 Non-return valve for large diameter pipe - uses convergent-divergent passages with balls and perforated retainers Granted FR2270498A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7415615A FR2270498A1 (en) 1974-05-06 1974-05-06 Non-return valve for large diameter pipe - uses convergent-divergent passages with balls and perforated retainers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7415615A FR2270498A1 (en) 1974-05-06 1974-05-06 Non-return valve for large diameter pipe - uses convergent-divergent passages with balls and perforated retainers

Publications (2)

Publication Number Publication Date
FR2270498A1 FR2270498A1 (en) 1975-12-05
FR2270498B1 true FR2270498B1 (enExample) 1978-01-13

Family

ID=9138491

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415615A Granted FR2270498A1 (en) 1974-05-06 1974-05-06 Non-return valve for large diameter pipe - uses convergent-divergent passages with balls and perforated retainers

Country Status (1)

Country Link
FR (1) FR2270498A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUT74205A (en) * 1992-12-14 1996-11-28 Transcom Gas Tech Non-return valve

Also Published As

Publication number Publication date
FR2270498A1 (en) 1975-12-05

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Legal Events

Date Code Title Description
ST Notification of lapse