SG141414A1 - Gate valve actuator - Google Patents

Gate valve actuator

Info

Publication number
SG141414A1
SG141414A1 SG200716666-3A SG2007166663A SG141414A1 SG 141414 A1 SG141414 A1 SG 141414A1 SG 2007166663 A SG2007166663 A SG 2007166663A SG 141414 A1 SG141414 A1 SG 141414A1
Authority
SG
Singapore
Prior art keywords
piston
housing
gate valve
end cap
valve actuator
Prior art date
Application number
SG200716666-3A
Inventor
David G Holliday
Original Assignee
Dril Quip Inc
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
Priority claimed from US11/865,416 external-priority patent/US20080083891A1/en
Application filed by Dril Quip Inc filed Critical Dril Quip Inc
Publication of SG141414A1 publication Critical patent/SG141414A1/en

Links

Landscapes

  • Actuator (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

GATE VALVE ACTUATOR A gate valve actuator including an housing, a piston, a lower end closure, and a piston cylinder end cap. The piston is situated within the housing, and the lower end closure connects the housing and the piston. The piston cylinder end cap also connects the housing and the piston. The housing, the piston, the lower end closure, and the end cap define a main actuator cavity. The connection between the lower end closure and the piston and the connection between the piston cylinder end cap and the piston are sealable connections. The main actuator cavity is substantially isolated from ambient air and from a control fluid, which prevents moisture build-up and hence prevents corrosion of the internal components of the actuator.
SG200716666-3A 2006-10-04 2007-10-04 Gate valve actuator SG141414A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82818406P 2006-10-04 2006-10-04
US11/865,416 US20080083891A1 (en) 2006-10-04 2007-10-01 Gate Valve Actuator

Publications (1)

Publication Number Publication Date
SG141414A1 true SG141414A1 (en) 2008-04-28

Family

ID=39321397

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200716666-3A SG141414A1 (en) 2006-10-04 2007-10-04 Gate valve actuator

Country Status (1)

Country Link
SG (1) SG141414A1 (en)

Similar Documents

Publication Publication Date Title
EP2064948A3 (en) Sprayer boom
NO20074967L (en) gate valve actuator
WO2006091710A3 (en) Valve and actuator assemblies
CA2577542A1 (en) A drill-string connector
MX2008008153A (en) Load relieving stem connectors.
WO2007081702A3 (en) Welded diaphragm valve
DK1725476T3 (en) Pressure control device
WO2008081803A1 (en) Egr valve device
WO2008024264A3 (en) Fluid saving blowout preventer operator system
WO2005040654A3 (en) Electromagnetic valve
SG135177A1 (en) Pressure balanced fluid control device
TW200723475A (en) Chamber sealing valve
EP2157343A3 (en) Suck-back valve
WO2008008740A3 (en) Multiposition angle valve
WO2008063765A3 (en) Valve assembly
WO2008102734A1 (en) Directional control valve device and directional control valve device block having directional control valve devices
WO2006047444A3 (en) Drain valve assembly
EP2187105A4 (en) Suck-back valve
WO2009010054A3 (en) Valve device for a pneumatic tyre, and system and method for adjusting the tyre pressure
WO2007011246A3 (en) Linear compressor cylinder and head construction
DE502006003535D1 (en) CLOSURE DEVICE
ATE505627T1 (en) CYLINDER HEAD COVER AND VALVE
SG141414A1 (en) Gate valve actuator
WO2006071807A3 (en) Sanitary drain valve
HK1148572A1 (en) Gate valve with integrated hydraulic actuator for subsea use