Subsea Gate Valves

Manually Actuated Multi-Turn Subsea Gate Valves

Oliver Valvetek offers a comprehensive range of engineered-to-precision Subsea manually actuated multi turn gate valves. Available in two different bore sizes – 3/4″ and 1 inch, they are suitable for up to 10,000 ft [3,050m] of water depths and a cold working pressure rating up to 15,000 PSI.
Our multi turn manual gate valves have a qualified working temperature of Classifications P-X (-20°F/-29°C to +302°F/150°C).

Our multi turn manual gate valves offer a good alternative to the half Turn Manual gate Valve. The Multi turn design has a positive back stop and an integral safety feature of having an external failure point external of the pressure envelope if the drive train is compromised.

All 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 offers long term reliability for applications such as mixed well bore produced fluids and chemical injection on subsea Christmas trees and Manifold Structures. Valves are typically supplied in Corrosion Resistant Alloys such as Inconel 625 and 25Cr Super Duplex stainless steel.

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 Information

  • Suitable for Remote Operating Vehicle (ROV) usage, 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 Multi-Turn gate valves and Half-Turn gate valves, offering a truly uninterrupted process flow through the valve and low operating torques.
    We thoroughly test and qualify each ROV 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 rated as a high performer within subsea applications and throughout the industry.

    <strong>Product Features </strong>
    Position Indication
    The Oliver Valvetek multi-turn manual gate valve is operated through 7 1/2 turns, indicating the operational valve position via indicator pins or via a position indicator receptacle if connected to the multi turn gate valves upper stem drive connector.

    Low Operating Torque
    The Multi-Turn Manual Gate Valve has a typical Normal Operating Torque of 60ft-lbf [80Nm] with a Torque to Damage 214ft-lbf [290Nm].

    Panel Mountable or Block Mountable
    The valve can be provided with a wide range of operators and receptacles designed to fit the 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.

    With Oil and Gas extraction becoming more advanced, the industry demands only the most innovative engineering excellence. For more information, get in touch with Oliver Valvetek today!

Product Enquiry

If you would like more information regarding our needle valves, please fill out the form below, or contact us directly on +44 (0) 1565 632 636 or

Product Enquiry Form

Related Products

Terms & Conditions Privacy Policy View All Policies
VAT Number 305 9513 66 VAT Number 785 8299 56 VAT Number 616 3298 37 VAT Number 305 9513 66 Registration Number 1421817 Registration Number 4011572 Registration Number 2938776 Registration Number 13380414

© Copyright 2024 Oliver Valves Ltd