Pressure Seal
DSI® Pressure Seal valves are designed for high pressure, high temperature applications such as Steam-Generation Stations, Industrial/Chemical Processing Plants, Thermal Power Generating Plants and other processing facilities throughout the world. Pressure Seal valves are engineered and manufactured in strict conformance to ASME, ANSI, ASTM, API and other applicable standards. The DSI Pressure Seal product line offers flex-wedge and parallel slide gate valves, straight and Y-pattern globe valves, swing, lift and tiltdisk check valves.
Pressure Seal Design
The segmental thrust ring absorbs all the thrust applied by internal pressure. A hardened Stainless Steel protective ring prevents deformation of the top surface of the soft steel, 304 Stainless or 316 Stainless with a high density graphite gasket. The gasket can be removed freely without damaging the sealing surface of the body.
General Design Specifications
DSI Pressure Seal Valves are manufactured in strict accordance with the following standards:
- ASME B16.34
- ASME B16.10
- ASME B16.25
- API 598
| Gate Valve | Globe Valve | Check Valve | |
|---|---|---|---|
| Size | 2″ thru 24″ | 2″ thru 24″ | 2″ thru 24″ |
| Pressure Class | 600-4500 | 600-4500 | 600-4500 |
| Style | Flexible Wedge and Parallel Slide design | Straight Pattern, Y-Pattern and Non-Return (Stop Check) design | Swing Check design, Straight Lift Tilt Disc design, and Y-Pattern design |
| Materials | A216 WCB, WC6, WC9, C5, C12, C12A, CF8M and special alloys | A216 WCB, WC6, WC9, C5, C12, C12A, CF8M and special alloys | A216 WCB, WC6, WC9, C5, C12, C12A, CF8M and special alloys |