Pressure Seal Gate Valve

High Pressure Seal Gate Valve

The pressure seal valves are designed in accordance with API600 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.

Technical specification

Design & manufacturing standard as per API 600

Face to face standard as per ASME B16.10 / API 6D

Fanged ends standard as per ASME B16.5 / MSS-SP-44/ASME B 16.47/ASME B 16.25 

Testing & inspection standard as per API598 / API 6D

Product Range

· Body material: Carbon steel, Stainless steel, Alloy steel ,Monel, Duplex, Inconel

· Size range(s):1/2"～60"

· Pressure rating: Class900～Class 2500

· End connection: RF, RTJ, BW

· Working temperature: -46℃～+560℃

· Mode of operation: Hand wheel, gear box, Electric , Pneumatic , etc.

Design Features

The valve self-sealing type bonnet.

The disc wedging phenomenon is not liable to be caused when temperature rises.

Flexible wedge.

Full stellite overlay seat sealing surface

Full wedge guiding design.

Absolute bonnet joint leak proof.

Optional by-pass design.