Pressure Seal Valves


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

Full Line of Pressure Seal Valves

  • Gate
  • Globe
  • Check
  • Full Catalog