FR2379740A1 - Procede et dispositif d'etancheite pour robinet a piston - Google Patents

Procede et dispositif d'etancheite pour robinet a piston

Info

Publication number
FR2379740A1
FR2379740A1 FR7702962A FR7702962A FR2379740A1 FR 2379740 A1 FR2379740 A1 FR 2379740A1 FR 7702962 A FR7702962 A FR 7702962A FR 7702962 A FR7702962 A FR 7702962A FR 2379740 A1 FR2379740 A1 FR 2379740A1
Authority
FR
France
Prior art keywords
rings
hard material
fit tightly
tightly around
piston 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
FR7702962A
Other languages
English (en)
Other versions
FR2379740B1 (fr
Inventor
Michel Filipelli
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.)
Naphtachimie SA
Original Assignee
Naphtachimie 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 Naphtachimie SA filed Critical Naphtachimie SA
Priority to FR7702962A priority Critical patent/FR2379740A1/fr
Publication of FR2379740A1 publication Critical patent/FR2379740A1/fr
Application granted granted Critical
Publication of FR2379740B1 publication Critical patent/FR2379740B1/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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/243—Packings

Landscapes

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

Abstract

L'invention concerne des robinets à piston, destinés à permettre, modifier ou interrompre le défit d'un fluide. Lorsque ces robinets sont fermés, l'étanchéité est assurée par les rondelles élastiques 18 qui sont mises en pression par la chemise 20, poussée par l'épaulement 30 du piston 16 quand celui-ci arrive en position de fermeture. Ainsi, quand le robinet est ouvert, les rondelles, non comprimées ne se dilatent pas vers l'intérieur et ne sont pas détériorées par le piston lorsque celui-ci remonte. Ces robinets sont particulièrement applicables au transport de particules solides des fluides liquides ou gazeux.
FR7702962A 1977-02-03 1977-02-03 Procede et dispositif d'etancheite pour robinet a piston Granted FR2379740A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7702962A FR2379740A1 (fr) 1977-02-03 1977-02-03 Procede et dispositif d'etancheite pour robinet a piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702962A FR2379740A1 (fr) 1977-02-03 1977-02-03 Procede et dispositif d'etancheite pour robinet a piston

Publications (2)

Publication Number Publication Date
FR2379740A1 true FR2379740A1 (fr) 1978-09-01
FR2379740B1 FR2379740B1 (fr) 1980-12-05

Family

ID=9186228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702962A Granted FR2379740A1 (fr) 1977-02-03 1977-02-03 Procede et dispositif d'etancheite pour robinet a piston

Country Status (1)

Country Link
FR (1) FR2379740A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901773A1 (de) * 1989-01-21 1990-07-26 Mann & Hummel Filter Absperrvorrichtung fuer foerdereinrichtungen, insbesondere fuer schuettgueter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901773A1 (de) * 1989-01-21 1990-07-26 Mann & Hummel Filter Absperrvorrichtung fuer foerdereinrichtungen, insbesondere fuer schuettgueter

Also Published As

Publication number Publication date
FR2379740B1 (fr) 1980-12-05

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Legal Events

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