Pressure Seal Check Valves
High-pressure sealing non-return valves
Pressure Seal Check Valves
Overview
Pressure seal check valves prevent reverse flow in high-pressure lines. The self-tightening pressure-seal bonnet forms a leak-tight joint, making them well suited to boiler feed, power and refinery service where reliability is critical.
Key Features
- Self-energising pressure-seal bonnet
- Automatic non-return protection
- Swing and piston designs
- Renewable seat and disc
- Butt-weld and flanged ends
Applications
Pump discharge Boiler feed Power plants Refineries High-pressure steam
Technical Data
| Size Range | 2" – 24" (DN50 – DN600) |
|---|---|
| Pressure Class | Class 600 – 2500 |
| Body Materials | WCB, WC6, C5, forged F11 / F22 / F91 |
| Trim / Internals | 13% Cr, Stellited, SS316 |
| End Connections | Butt-weld, Flanged |
| Operation | Automatic (flow-actuated) |
| Standards | BS 1868 / API 6D / ANSI B16.34 |
Full datasheet available on request
Types & Configurations
Available in the following designs — each can be tailored to your specification.
