Zhejiang Naibang Valve Co.,Ltd
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Products

Swing Check Valve

Carbon Steel Pressure Seal Check Valve

Carbon Steel Pressure Seal Check Valve

The pressure seal valves are designed in accordance with BS1868 and ASME B16.34 for service of high temperature and high pressure and are widely used in fossil fuel power plant. Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and rigid as well as maintenance cost-effective at high temperature and high pressure service. It is an automatic valve when it is automatically opened or closed by the force generated by the medium flowing within the pipeline. Its major function is to prevent the backflow of the medium in the pipeline, reverse rotation of the pump and its driving motor, and discharge of the medium in the container.

Products Details

Pressure Seal Check Valve

Product Range:

Nominal diameter:1/2"~48"(DN15~DN1200)

Pressure range: Class150~2500(PN16~PN420)

Working temperature:-196℃~+560℃

Body material: Carbon steel, Stainless steel, Alloy steel, Bronze


Features:

The pressure seal valves are designed in accordance with BS1868 and ASME B16.34 for service of high temperature and high pressure and are widely used in fossil fuel power plant.

Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and rigid as well as maintenance cost-effective at high temperature and high pressure service.

It is an automatic valve when it is automatically opened or closed by the force generated by the medium flowing within the pipeline. Its major function is to prevent the backflow of the medium in the pipeline, reverse rotation of the pump and its driving motor, and discharge of the medium in the container.  


Standards:

Manufacture Standard

Face to  Face

Flange   Drilling

Pressure-Temperature Class

Test   Standard

API594, API6D, JB/T8937

API594, API6D JB/T8937

JB/T74-90, GB/T13402, GB/T9112-9124, HG/T20592-20635, API604, ASME B 16.47, DIN2543-2548

JB/T74, GB/T9124, HG20604-20625, ASME B16.34, SH3406

API598 

  JB/T9092



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