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Subsea ball valve

水下球閥

Product Overview

Subsea ball valves are mainly used in Subsea manifolds, submarine pipeline terminals and oil and gas transmission pipelines of offshore oil and gas projects. The sealing structure of the valve adopts the sealing form of single piston effect (SPE) + double piston effect (DPE) combination, and the SPE is set to seal the upstream of the valve, which can realize the function of automatic discharge of overpressure in the valve cavity to the upstream. The operation mode of submarine valves mainly includes hydraulic control, remote control operation (ROV) and diver operation. The service life of Subsea ball valves is required to be long, generally more than 30 years.

Product design features

Full bore or reduced bore
Sealing form of single piston effect (SPE) + double piston effect (DPE) combination
Automatic discharge of mid-cavity overpressure
Anti-blowing out of the stem, anti-static
Potential difference corrosion protection design
Seawater-resistant thread design
The switch is flexible, easy to operate and has a long life

Product range

Design, Manufacturing & Inspection: API 6DSS
End connection: flange, welded
Nominal diameter: 1/2"~24" (DN15~DN600)
Pressure Rating: Class150~2500(PN16~PN420)
Applicable temperature: -29~150 °C
Material category: alloy steel, stainless steel, duplex steel and other special materials
Mode of operation: hydraulic, ROV and diver operation

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