FR2432661A1 - Lifting platform hydraulic selector valve - has non-return valve in bore in rotary plug - Google Patents

Lifting platform hydraulic selector valve - has non-return valve in bore in rotary plug

Info

Publication number
FR2432661A1
FR2432661A1 FR7920138A FR7920138A FR2432661A1 FR 2432661 A1 FR2432661 A1 FR 2432661A1 FR 7920138 A FR7920138 A FR 7920138A FR 7920138 A FR7920138 A FR 7920138A FR 2432661 A1 FR2432661 A1 FR 2432661A1
Authority
FR
France
Prior art keywords
valve
bore
lifting platform
return valve
hydraulic selector
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.)
Pending
Application number
FR7920138A
Other languages
French (fr)
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.)
Rotelmann & Co
Original Assignee
Rotelmann & Co
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 Rotelmann & Co filed Critical Rotelmann & Co
Publication of FR2432661A1 publication Critical patent/FR2432661A1/en
Pending 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means

Abstract

The hydraulic selector valve has a cock with pipe unions and a rotary plug with one or more bores, working against a seat between a flow position and one shutting off two or more unions from each other, together with a non-return valve. This valve (13, 14), is accommodated in one or more of the bores (12) in the plug (7). The plug can be spherical, while the non-return valve has a ball working between a seat and a stop limiting its movement in the other direction, a spring being fitted between stop and ball to thrust the latter against the seat.
FR7920138A 1978-08-02 1979-08-01 Lifting platform hydraulic selector valve - has non-return valve in bore in rotary plug Pending FR2432661A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782833924 DE2833924A1 (en) 1978-08-02 1978-08-02 HYDRAULIC SWITCHING GROUP

Publications (1)

Publication Number Publication Date
FR2432661A1 true FR2432661A1 (en) 1980-02-29

Family

ID=6046043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7920138A Pending FR2432661A1 (en) 1978-08-02 1979-08-01 Lifting platform hydraulic selector valve - has non-return valve in bore in rotary plug

Country Status (3)

Country Link
DE (1) DE2833924A1 (en)
FR (1) FR2432661A1 (en)
IT (1) IT1197511B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012143775A2 (en) 2011-04-18 2012-10-26 Halliburton Energy Services, Inc. Ball valve safety plug
WO2015079034A1 (en) * 2013-11-29 2015-06-04 Total Marketing Services Isolation valve having a vacuum chamber

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1209607A (en) * 1984-02-28 1986-08-12 John B. Rogers Valve module and apparatus therefor
DE4332221C2 (en) * 1993-09-22 2000-08-31 Elmar Baumgartner 2/2-way ball valve for the alternate operation of hydraulic tools, especially a bucket piston cylinder or a gripper piston cylinder in an excavator
AU771331B2 (en) * 1999-11-17 2004-03-18 David Hair Ball valve with non-return valve
AUPQ411799A0 (en) * 1999-11-17 1999-12-09 Hair, David Ball valve with non-return valve
DE102008052855B4 (en) 2008-10-23 2019-02-07 Heiner Czwaluk Ball valve and ball valve
EP3862602A1 (en) * 2020-02-07 2021-08-11 Caterpillar Inc. Ball for a valve assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE218505C (en) *
FR1388055A (en) * 1963-12-26 1965-02-05 Transport Petrol Par Pipeline Improvements to control devices for the passage of fluids in a pipeline
US3424184A (en) * 1966-10-18 1969-01-28 Richard Brimley Venting antisiphon rotary plug valve with drainage means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE218505C (en) *
FR1388055A (en) * 1963-12-26 1965-02-05 Transport Petrol Par Pipeline Improvements to control devices for the passage of fluids in a pipeline
US3424184A (en) * 1966-10-18 1969-01-28 Richard Brimley Venting antisiphon rotary plug valve with drainage means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012143775A2 (en) 2011-04-18 2012-10-26 Halliburton Energy Services, Inc. Ball valve safety plug
EP2699761A4 (en) * 2011-04-18 2015-11-04 Halliburton Energy Services Inc Ball valve safety plug
EP3354842A1 (en) * 2011-04-18 2018-08-01 Halliburton Energy Services Inc. Ball valve safety plug
WO2015079034A1 (en) * 2013-11-29 2015-06-04 Total Marketing Services Isolation valve having a vacuum chamber
FR3014163A1 (en) * 2013-11-29 2015-06-05 Total Marketing Services STIRRUP TAP WITH DEAD CHAMBER
US10012317B2 (en) 2013-11-29 2018-07-03 Total Marketing Services Isolation valve with a dead chamber

Also Published As

Publication number Publication date
IT7968598A0 (en) 1979-08-01
DE2833924A1 (en) 1980-02-21
IT1197511B (en) 1988-11-30

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