GB2310479A - Actuator controlled valve - Google Patents

Actuator controlled valve Download PDF

Info

Publication number
GB2310479A
GB2310479A GB9603957A GB9603957A GB2310479A GB 2310479 A GB2310479 A GB 2310479A GB 9603957 A GB9603957 A GB 9603957A GB 9603957 A GB9603957 A GB 9603957A GB 2310479 A GB2310479 A GB 2310479A
Authority
GB
United Kingdom
Prior art keywords
valve
valve unit
pressure
outlet
inlet
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.)
Withdrawn
Application number
GB9603957A
Other versions
GB9603957D0 (en
Inventor
A J Lomax
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.)
ALCO VALVES Ltd
Original Assignee
ALCO VALVES Ltd
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 ALCO VALVES Ltd filed Critical ALCO VALVES Ltd
Priority to GB9603957A priority Critical patent/GB2310479A/en
Publication of GB9603957D0 publication Critical patent/GB9603957D0/en
Publication of GB2310479A publication Critical patent/GB2310479A/en
Withdrawn legal-status Critical Current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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Abstract

A fail-safe valve includes a medium inlet for flow of a fluid which passes into a housing. It is stopped/started by the seating action of a valve stem which moves up and down giving reciprocating movement to engage a mechanical position indicator. The valve stem's upward stroke also closes an adjacent circuit which illuminates an LED and its downward stroke illuminates another LED. The stem is fitted to a piston which is pressure controlled by hydraulic fluid which enters through a hydraulic inlet and exits through a hydraulic outlet. The flow then enters a check valve sub assy in which its spring loaded tip is forced back by the medium fluid which exits out of the medium outlet. The valve is suitable for sub-sea applications and may be made from stainless steel, duplex, super duplex, 6MO or other alloys.

Description

DESCRIPTION Reverse acting actuated needle valve Pressure from vaccum up to 10,000 P.S.I. and made from stainless steel, duplex, super duplex, 6MO and other alloys.

Claims (1)

1/ An Enclosed ingress sealed fail safe actuator controlled valve unit with an inlet & outlet and restriction device to ensure 1 way flow of a fluid, suitable for subsea or arduous/contaminated environment applications.
2/ A valve unit as in claim 1 where flow control includes a spring return hydraulic pressure operated piston controlling a primary valve making flow from the inlet to the outlet.
3/ A valve unit as in claim 2 possessing an automatic fail safe feature: If the hydraulic pressure operating the piston was to fail the fluid pressure would push the primary valve closed.
4/ A valve unit as in claim 3 where a restriction device at the outlet includes a secondary spring return valve.
5/ A valve unit as in claim 4 possessing a secondary automatic fail safe feature: If the reverse flow pressure at the outlet valve was to rise above that of the inlet (due to pressure surges) the secondary restriction device would close.
6/ A valve unit as in claim 5 where a mechanical position indicator at top of the unit enables a visible check to ascertain whether valve is open or closed.
7/ A valve unit as in claim 6 where enclosed electronic LED position indicators/connectors ascertain main valve position status.
8/ A valve unit as in claim 7 that has internal air cavities pre-pressurised to compensate for hydrostatic pressure obtained from subsea conditions.
9/ A valve unit as in claim 8 that has a relief system to pressure compensate for internal movement of actuated components.
10/ A valve unit as in claim 9 which the entire of its members are made from metals including stem seals & pressure containment seals which are made from metals & plastics.
11/ A valve illustrated by the accompanying drawing.
GB9603957A 1996-02-24 1996-02-24 Actuator controlled valve Withdrawn GB2310479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9603957A GB2310479A (en) 1996-02-24 1996-02-24 Actuator controlled valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9603957A GB2310479A (en) 1996-02-24 1996-02-24 Actuator controlled valve

Publications (2)

Publication Number Publication Date
GB9603957D0 GB9603957D0 (en) 1996-04-24
GB2310479A true GB2310479A (en) 1997-08-27

Family

ID=10789358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9603957A Withdrawn GB2310479A (en) 1996-02-24 1996-02-24 Actuator controlled valve

Country Status (1)

Country Link
GB (1) GB2310479A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006091710A3 (en) * 2005-02-22 2006-12-14 Swagelok Co Valve and actuator assemblies

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252116A (en) * 1991-01-25 1992-07-29 Otis Eng Co Gas lift valve utilizing a diaphragm pilot
EP0712998A1 (en) * 1994-11-17 1996-05-22 Sagem Sa Switching valve for a circuit for injecting air into internal combustion engine exhaust

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252116A (en) * 1991-01-25 1992-07-29 Otis Eng Co Gas lift valve utilizing a diaphragm pilot
EP0712998A1 (en) * 1994-11-17 1996-05-22 Sagem Sa Switching valve for a circuit for injecting air into internal combustion engine exhaust

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006091710A3 (en) * 2005-02-22 2006-12-14 Swagelok Co Valve and actuator assemblies
US7610928B2 (en) 2005-02-22 2009-11-03 Swagelok Company Valve and actuator assemblies

Also Published As

Publication number Publication date
GB9603957D0 (en) 1996-04-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)