API 609 Metal to Metal Seal Triple Offset Wafer Type Butterfly Valve, Worm Gear
Features
Operation Cycles |
Over 50,000 times |
Leakage Level |
Class V Zero leakage |
Metal Seated |
Wide temperature and pressure range |
Torque |
Zero friction for opening and closing and low torque |
Eccentric Design |
Reduce valve seat wear and improve service life. |
Valve stem anti blowout design |
Reduce maintenance difficulty and cost |
Bidirectional Pressure Sealing |
Any installation position |
Low Flow Resistance |
Improve fluid efficiency and reduce energy consumption |
Coating Grade |
Conventional and special conditions of C1-C5 & CX |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Design Standard |
EN 593, API 609 |
Top Flange Standard |
ISO 5211 |
End Flange Standard |
EN1092, ASME B16.5, ASME B16.47 |
Face to Face Dimension |
EN558, API 609 |
Testing Standard |
API 598, EN12266 |
Temperature |
-169℃~700℃(depends on material) |
Pressure |
PN16-PN420(150LB~2500LB) |
Body Material |
Carbon Steel, Stainless Steel, Duplex, Alloy |
Disc Material |
Carbon Steel, Stainless Steel, Duplex, Alloy |
Shaft Material |
Stainless Steel, Monel, etc |
Seat Material |
Stainless Steel, Stellite, Alloy, etc |
Operator |
Lever, Gearbox, Pneumatic, Electric Actuator |
Dimension
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Three-Dimensional Eccentric Structure: Based on the double eccentric design, an unique angular eccentricity is added, which fundamentally eliminates mechanical friction between the valve seat and the seal ring during the 90° stroke, greatly reducing operating torque and extending service life.
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Metal Hard Seal & Zero Leakage: Multi-layer or all-metal hard seal structure achieves bubble-level zero leakage, ensuring stable and reliable sealing under high temperature and high pressure.
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Wide Application Range: The main materials of the valve body and disc can be flexibly selected according to medium characteristics, temperature and pressure, adapting to various extreme environments such as high temperature, high pressure, deep cold and corrosion.
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Outstanding Large-Caliber Performance: Compact structure, light weight and small installation space, gradually replacing gate valves and ball valves in the cut-off valve field for large-caliber pipe networks.
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High Cost-Effectiveness: Longer service life, easy operation and low maintenance cost, with higher comprehensive cost-effectiveness compared with traditional gate valves and ball valves.