GENERAL INFORMATION
Flanged 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
| Connection | Double flange |
| 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 |
