Pressure Seal Gate Valve

Pressure Seal Gate Valve

ZhengFeng's pressure seal gate valves are intended for high pressure, high temperature applications in all types of fluid except where severe.

Payment Protection
On-time Shipment
Quality Protection


The pressure seal gate 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.

This kind of gate valve is not only characterized as simple structure and reliable usage, but also able to create slight flexible deformation to compensate the deviation of the sealing face angle generated during processing, thus improving the process performance. In addition, at seat and gate disc seal surface are over-lay with iron-base alloy or Co-base alloy or carbide alloy for long duration. 


1. The valve has the self-sealing type bonnet;

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

3. Flexible wedge;

4. Full stellite overlay seat sealing surface;

5. Full wedge guiding design;

6. Absolute bonnet joint leak proof;

7. Optional by-pass design.

Product Range:

Body material: carbon steel, stainless steel, alloy steel

Nominal diameter: 1/2"~60"(DN15~1500)

Pressure range: Class150~2500(PN10~420)

End connection: RF, RTJ, BW

Working temperature:-29℃~+560℃

Mode of operation: Hand wheel, Gear Box, Electric Actuator, Pneumatic Actuator, etc.



Valve Type

Pressure Seal Gate Valve

Valve Material

Cast steel, stainless steel, special alloy, etc

Valve Test

100% quantity tested before delivery

Valve Guarantee

18 months from the date of dispatch ex works, or 12 months from date of commodity installation.

Valve Painting

Customer request

Valve Package

Wooden case


No requirement

Valve Certificate

API 6D/CE/ISO9001/ISO14001

Delivery Detail

Shipped in 4 or 6 weeks after payment



Payment Terms

L/C, D/A, D/P, T/T

Certificate Offered

Packing List, Commercial Invoice, Test Reports and Material Certificates, Certificate of quality and quantity, Seller’s Certificate of Guarantee



Welcome to our website! Please feel free to send us your inquiry in detail, we will reply you as soon as possible.

Related products