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Bare stem double flange butterfly valve
Bare stem double flange butterfly valve

Double flange concentric type butterfly valve

Specification:

Size: 2”-48” / 50mm – 2000 mm

Design standard: API 609, BS EN 593.

Face-to-Face dimension: API 609, DIN 3202, GB 12238, BS 5155, ISO 5752.

Flange Drilling: ANSI B 16.1, BS4504, DIN PN 10 / PN 16, JIS 5K, 10K, 16K.

Test: API 598.

Pressure & Temperature ratings:

Working Pressure

10 bar / 16 bar

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.

Materials:

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

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

Seat: EPDM, NBR, VITON, PTFE.

Lever / worm gearbox operator / electric operator / pneumatic operator.

Application:

This kind of butterfly valve is widely utilized in foodstuff, pharmacy, chemical industry etc. and industrial environmental protection, water treatment, high building, water supply and drain tubing line open or close or adjusting medium.

Bare stem double flange butterfly valve

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