Proudct Features

1.Unique stem hole design in the disc ensures a dry stem journal
2.360 degree polished disc assures positive on-off
3.Long service life, standing the test of tens thousands opening/closing operations
4.Bubbles-tight sealing with no leakage under the pressure test
5.Wide selection of materials , applicable to various medium

Operation type
Lever,Gear, Electric actuator,Pneumatic actuator,Bare stem

Standard
Design and Manufacture:API 09
Inspection and Test:API 598
End flange dimension:ASME B16.5,ASME B16.47(API 605 ,MSS SP44)
Butt weld end dimension:ASME B16.25(BW)
Face to face:API 609
Pressure-temperature ratings:ASME B16.34
NACE: NACE 0175
Material

  ASTM A216 WCB WCC;ASTM A217 WC1 WC6 WC9;ASTM A351 CF8,A351 CF8M,
  A351 CF3,A351 CF3M,A351 CN7M;.ASTM A352 LC1 LCB LCC LC3(Cast Steel,

  Alloy Steel, Stainless Steel, Special Steel)