GENERAL INFORMATION

triple offset butterfly valve provides zero leakage through no-rubbing 90-degree rotation across a wide range of pressure and temperature conditions.

Widely used in many industries such as Oil & Gas, Chemical & coal, petrochemical, desalination plants, waterworks, fossils, district heating, nuclear, Iron & Steel, Mining, automotive, shipyards, aerospace.

FEATURES

ISO 5211 bracket for easy mounting of actuators
Triple offset and ellipsoidal sealing geometry
Bubble tight shut-off
Inherently firesafe by design
A metal seal ring in Duplex and a highly wear-resistant Stellite grade 21 seat ensure prolonged superior tightness
Single piece cast body with face to face dimensions to ISO5752, ASME B16.10 and API 609 double flanged short pattern, guarantees interchangeability with other valve types
Extensively hardened bearings, incorporating a standard reinforce, braided, flexible graphite bearing protector, ensure increased reliability
Blowout proof devices on shaft keep sure safety of shaft operating
Pin-less shaft to disc connection makes the valve convenient for parts replacement and reliable even under corrosion

Triple Offset Butterfly Valves

Size : 3″-80″ for PN10,PN16,Class150; 3″-48″ for PN25,PN40,Class300; 3″-24″ for Class600
Pressure: PN10,PN16,PN25,PN40,Class150,Class300,Class600
Flange standard:  ASME B16.5 Class150,Class300,Class600; EN1092 PN16,PN25,PN40
Face to face: ISO 5752, ASME B16.10, API609 Double flanged short pattern
Pressure test: API 598, ISO 5208 Rate A, ANSI B16.104(ANSI/FCI 70-2)Class Ⅵ
Temperature:  -29°C to +538°C
Operator:  Lever，Gear box，Pneumatic actuator，Electric actuator