FR2442388A1 - Lift valve with membrane clad round head piston obturator - uses concentric flanged sleeves which follow piston to support membrane flange - Google Patents

Lift valve with membrane clad round head piston obturator - uses concentric flanged sleeves which follow piston to support membrane flange

Info

Publication number
FR2442388A1
FR2442388A1 FR7832939A FR7832939A FR2442388A1 FR 2442388 A1 FR2442388 A1 FR 2442388A1 FR 7832939 A FR7832939 A FR 7832939A FR 7832939 A FR7832939 A FR 7832939A FR 2442388 A1 FR2442388 A1 FR 2442388A1
Authority
FR
France
Prior art keywords
piston
membrane
flange
obturator
lift valve
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
FR7832939A
Other languages
French (fr)
Other versions
FR2442388B1 (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.)
SIERS
Original Assignee
SIERS
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 SIERS filed Critical SIERS
Priority to FR7832939A priority Critical patent/FR2442388A1/en
Publication of FR2442388A1 publication Critical patent/FR2442388A1/en
Application granted granted Critical
Publication of FR2442388B1 publication Critical patent/FR2442388B1/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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/123—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on the bottom of the fluid line

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

Controlling fluid flow in a conduit, the lift valve uses a membrane (1) clad round head (5) piston obturator, incl. a telescopic arrangement of membrane flange (9) supports (10-13) which follow the piston. The arrangement provides continuous flange support obviating cavitation etc. The unit comprises a venturi housing (1) with a valve seat (6) and a cover (3), the latter being traversed by the piston rod (7), and the edges of the membrane flange being clamped between the housing and the cover. The support is provided to the rear membrane face and between the piston head and the clamped edges. In detail the system may use concentric sleeves (10-13) of which the walls have a 'J' or a cranked bar 'L' section in radial planes, the inner sleeve (10) following a ring (14) in a piston rod groove, and succeeding sleeves (11) following flanges on their interior neighbours (10).
FR7832939A 1978-11-22 1978-11-22 Lift valve with membrane clad round head piston obturator - uses concentric flanged sleeves which follow piston to support membrane flange Granted FR2442388A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7832939A FR2442388A1 (en) 1978-11-22 1978-11-22 Lift valve with membrane clad round head piston obturator - uses concentric flanged sleeves which follow piston to support membrane flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7832939A FR2442388A1 (en) 1978-11-22 1978-11-22 Lift valve with membrane clad round head piston obturator - uses concentric flanged sleeves which follow piston to support membrane flange

Publications (2)

Publication Number Publication Date
FR2442388A1 true FR2442388A1 (en) 1980-06-20
FR2442388B1 FR2442388B1 (en) 1981-06-26

Family

ID=9215192

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832939A Granted FR2442388A1 (en) 1978-11-22 1978-11-22 Lift valve with membrane clad round head piston obturator - uses concentric flanged sleeves which follow piston to support membrane flange

Country Status (1)

Country Link
FR (1) FR2442388A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472138A1 (en) * 1990-08-22 1992-02-26 Gec Alsthom Sapag Bottom valve
FR2721369A1 (en) * 1994-06-16 1995-12-22 Defontaine Stopcock with high-seal conical valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388988A (en) * 1944-04-07 1945-11-13 Shriver & Company Inc T Diaphragm valve
FR1271905A (en) * 1960-10-21 1961-09-15 App Pour L Ind Sa Const Des Diaphragm valve
FR1432594A (en) * 1964-12-30 1966-03-25 Device for total support and, possibly, servo-control of a membrane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388988A (en) * 1944-04-07 1945-11-13 Shriver & Company Inc T Diaphragm valve
FR1271905A (en) * 1960-10-21 1961-09-15 App Pour L Ind Sa Const Des Diaphragm valve
FR1432594A (en) * 1964-12-30 1966-03-25 Device for total support and, possibly, servo-control of a membrane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472138A1 (en) * 1990-08-22 1992-02-26 Gec Alsthom Sapag Bottom valve
FR2666131A1 (en) * 1990-08-22 1992-02-28 Alsthom Fluides Sapag TAP, IN PARTICULAR FOR TANK BOTTOM.
US5160117A (en) * 1990-08-22 1992-11-03 Alsthom Fluides Sapag Bottom-of-vat valve
FR2721369A1 (en) * 1994-06-16 1995-12-22 Defontaine Stopcock with high-seal conical valve

Also Published As

Publication number Publication date
FR2442388B1 (en) 1981-06-26

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Legal Events

Date Code Title Description
ST Notification of lapse