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Wormgear wafer butterfly valve
Wormgear wafer butterfly valve

Wormgear butterfly valve 1. Size: DN50-DN350; Pressure: PN10/PN16 2. Body:CI/DI; Disc: DI/SS; Seat: NBR/EPDM 3. Gear operated

Wormgear Wafer Butterfly Valve


Size: 2”-14” / 50mm – 350 mm

Design standard: API 609, BS EN 593, GB T12238

Face-to-Face dimension: API 609, ISO 5752, BS EN 558.

Flange Drilling: ANSI B 16.1, BS EN 1092-2, JIS 5K, 10K, 16K.

Test: API 598.

Pressure & Temperature ratings:

Working Pressure

PN10 / PN16

Testing Pressure

Shell: 1.5 times rated pressure,

Seat: 1.1 times rated pressure.

Working Temperature

-10°C to 80°C (NBR)

-10°C to 120°C (EPDM)

Suitable Media

Water, Oil and gas.


Body: cast iron, ductile iron, WCB, SS.

Disc: nickel ductile iron, Al. bronze, SS, carbon steel.


Gear operator.


The product is used for throttling or shutting off the flow of corrosive or non corrosive gases, liquids and semiliquid. It can be installed in any selected position in pipelines in the industries of petroleum processing, chemicals, food, medicine, textile, paper making, hydroelectricity engineering, building, water supply and sewage, metallurgy, energy engineering as well as light industry.

Wormgear wafer butterfly valve

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