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2'' 4500LB F91 butt weld forged pneumatic Y type drain valve

2'' 4500LB F91 butt weld forged pneumatic Y type drain valve

  • Valve type:Drain valve
  • Port size:2''
  • Pressure:4500LB
  • Material: F91
  • End: BW
  • Operation: Pneumatic
Product description:
Design features
Valve design in accordance with ASME B16.34 API598
Connection end:
Socket weld:ASME B16.11   Butt weld: ASME B16.25  Flange: ASME B16.5
Inspection and test standard: API 598
Design pressure: 4500LB

Main parts material list
Body: B381 F2
Ball: B381 F2
Bonnet:B381 F2
Stem:  B381 F2

Pneumatic drain valves are installed in steam pipes of thermal power unit.
According to their site can be divided into:
Main steam line drain valves
Hot reheat line drain valves
Cold reheat line drain valves
First stage, second stage, third stage, forth stage, fifth stage ,fifth stage and sixth stage extraction steam line drain valves

Function: At startup of the turbine, the pneumatic drain valves are opened to exhaust steam-water mixture of each stage steam pipe. Also in the steam turbine failure or load rejection, drain valves will be opened to exhaust the steam and water in the pipeline to the container which ensure the security of the system.

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