STOP CHECK PRESSURE SEAL STYLE GLOBE VALVE


  • Mainly used in power plants involving fossil fuels, coal, gases, nuclear and thermal power, boilers, steam stations, etc. as valves for volumetric flow control.
  • 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.
  • This design acts as a globe valve, but also functions as a piston type control. It differs from the basic design in the machining of the stem-disc assembly where a gap is left between them to allow the disc to move freely when the stem is placed in the partially open position.
  • 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 valves for volumetric flow control.

DESIGN FEATURES

STOP CHECK PRESSURE SEAL STYLE GLOBE VALVE

  1. Pressure seal hood stop check 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. Guide pin type disc.
  5. Rear seat design with stem seal.
  6. Low leakage gaskets in accordance with ISO-15848-1.
  7. Inner arrangement in accordance with API-623 published tables.
  8. Renewable body-welded ring (for sizes 2 to 4 can be an integral ring).
  1. NPS 2 - NPS 30 diameters.
  2. 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.
  3. For WE end valves in accordance with ASME B16.25.
  4. Flange end spacing in accordance with ASME B16.10.
  5. Classes 600, 900, 1500, and 2500 #.
  6. T-body assembly style as standard; Y-body assembly option available when reduced turbulence and/or increased flow is required. (CV)
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