Subsea Check Valve
Douson subsea check valve belongs to the subsea swing check valve and its disc can rotate around the axis. Generally, the fluid resistance is less than lift check valve, suitable for the occasion of large size. This valve is mainly composed of body, disc assembly and the ROV actuator, etc. In normal work, the disc is open by fluid power, realize the subsea check valve's open. When the fluid flow from downstream, spring provides initial seal, fluid pressure realize high pressure seal. When feed flow is abnormal or failed, can take emergency operation by artificial (ROV) hydraulic wrench to realize of subsea check valve opening and closing.
Specification
Nominal Bore Diameter: 3-1/8"
Working Pressure: 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb
Working Temperature: 2℃～121℃
Material Class: AA～HH
Product Specification Level: PSL1～PSL3G
Performance Requirement: PR1～PR2F
Working Medium: oil, natural gas, mud, gas containing H2S and CO2
Max. Water Depth: 500m
Affiliate Category:
Subsea Valve
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