Underwater gate valve-Subsea Core Supporting System Solutions-WEFIC Ocean Equipment Manufacturing Co., Ltd.

Underwater gate valve
Underwater gate valve is an indispensable component of underwater oil (gas) production, mainly composed of valve body, valve cover, valve plate, valve stem, valve seat, etc. It can achieve the opening and closing of fluids in the production channel and annulus channel of underwater oil trees, and control the flow direction of fluids. By opening and closing different underwater gate valves, different completion and repair operations can be carried out.

Product Advantages/Product Highlights

Metal to metal sealing

Ultrasonic spraying of tungsten carbide on the sealing surface of the valve plate and seat

Good low-pressure sealing effect

Design U-shaped non-metallic seal between valve seat and valve body

Reliable sealing

Octagonal metal seal is used between the valve body and the valve cover

Can achieve bidirectional sealing

The valve plate and valve seat can achieve bidirectional sealing

Reliable sealing performance

The valve stem adopts a V-shaped group seal, forming a layered multi-layer sealing contact surface

Performance Parameters

Parameter Name	Parameter Content
Nominal diameter	2-1/16“~5-1/8”
Working pressure	5,000psi~15,000psi
Working medium	Oil, natural gas, drilling mud
Working temperature	-46°C~121°C
Material class	DD~HH
Product specification level	PSL2~PSL3G
Performance requirement	PR2
Design Water Depth	2,000m
Design Life	30years