How to Operate Valves Subsea?
Several issues need to be considered to design and configure a subsea development controlled and operated over a significant distance. Various industries use subsea valves,…
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Manually Actuated Half Turn Subsea Gate Valves
Manually Actuated Half Turn Subsea Gate Valves
Oliver Valvetek offers a comprehensive range of engineered-to-precision Subsea Manually Actuated Gate Valves. Available in four different bore sizes – 3/8″, 1/2″, 3/4″ and 1 inch, they are suitable for up to 10,000 ft of water depths and a cold working pressure rating up to 15,000 PSI. We also offer a range of Hydraulically Actuated Gate Valves and Rotary Gate Valves. Our Manually Actuated Subsea Gate Valves provide the end-user with low flow restrictions and metal-to-metal seat sealing isolation. We also utilise Tungsten Carbide (HVOF) hard facing technology which ensures that the sealing is gas-tight (meeting with API6A PSL3G). This is extremely useful for applications such as chemical injection on subsea Christmas trees and Manifold Structures.
Designed for Remote Operating Vehicle (ROV) operation, our Manually Actuated Subsea Gate Valves have been used extensively by our customers worldwide for projects both small and large in size. Commonly found on Oil, Gas and Petrochemical projects, we offer both Half-Turn and Multi-Turn gate valves, offering a genuinely uninterrupted process flow through the valve and low operating torques.
We test and qualify each Manually Actuated Half Turn Gate Valve to different pressure ratings and water depths. With a maximum pressure rating of 15,000 PSI (1,034 bar) and a maximum water depth of up to 10,000ft (3,050m), our Manually Actuated Subsea Gate Valves are some of the best performing in the industry.
We also perform qualification testing to the exacting standards of API 6A Appendix F PR2 and 17D 2nd Ed and supported by Third Party Independent review and endorsement.
Product Features
- Position Indication
The Oliver Valvetek manual gate valve operated through a half (180degrees) turn. This provides a simple visual indication to the ROV operator of the valve position. - Over-Torque Protection
The unique half-turn operation means that if the valve is over-torqued to a point where the end stops fail, the valve will simply continue to open and close. The valve can then be positioned in the open or closed position without any damage to the valve internals. - Low Operating Torque
The half-turn feature combined with needle thrust bearings provides a low operating torque at full differential pressures. - Panel Mountable
The valve can be provided with a wide range of operators and receptacles to fit the designer ROV panel. - Uninterrupted flow passage through the valve
While positioned on fully open, our manual subsea gate valves provide clear through bore with minimum restrictions on flow.
For more information on Oliver Valvetek’s innovative Subsea Gate Valves, why not get in touch today?
| Manually Actuated Half Turn Subsea Gate Valves Specifications: | |
|---|---|
| Bore Sizes | 3/8", 1/2", 3/4" and 1 inch |
| Psi Ratings | Up to 15,000 PSI |
| Temperature Classification | -20F to +350F / -29C to + 177C |
| Water Depth | Up to 10,000 ft (3,050m) |
Manually Actuated 1_2inch Half-Turn Gate Valve Master Data Sheet Rev 1.2pdf APPROVED
Manually Actuated 1inch Half-Turn Gate Valve Master Data Sheet Rev 1.2 APPROVED
Manually Actuated 3_4inch Half-Turn Gate Valve Data Sheet Rev 1.2 APPROVED
Manually Actuated 3_8inch Half-Turn Gate Valve Data Sheet Rev 1.2pdf APPROVED
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