GATE VALVE PRESSURE SEAL


  • Mainly used in power plants involving fossil fuels, coal, gases, nuclear and thermal power, boilers, steam stations, etc. as flow isolation valves.
  • Designed to leverage the ability to use pipeline fluid pressure to enhance sealing action with a pre-loaded graphite or metal gasket strategically placed between the body and hood.
  • Designed in accordance with ASME B16.34.
  • ASME Classes 600, 900, 1500, and 2500


OVERVIEW

Mainly used in power plants involving fossil fuels, coal, gases, nuclear and thermal power, boilers, steam stations, etc. as flow isolation valves.

DESIGN FEATURES

GATE VALVE PRESSURE SEAL

  1. Pressure seal hood design in accordance with ASME B16.34.
  2. Rising stem with outside screw and yoke (OS&Y).
  3. Non-rising gear or handwheel operator.
  4. Flexible wedge type gate or twin side disc.
  5. Rear seat design with stem seal.
  6. Inner arrangement in accordance with API-600 published tables.
  7. Low leakage gaskets in accordance with ISO-15848-1.
  1. Renewable body-welded rings (for nickel alloy integral rings).
  2. NPS 2 - NPS 30 diameters.
  3. RF or RTJ finishes in accordance with ASME B16.5 from NPS 2 to NPS 24; for NPS 26 and larger valves, ASME B16.47 Series A flanges as standard.
  4. For WE end valves in accordance with ASME B16.25.
  5. Flange end spacing in accordance with ASME B16.10.
  6. Classes 600, 900, 1500, and 2500 #.
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