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Hard Seal Flange Ductile Iron Material Gear Box Butterfly Valve

Hard Seal Flange Ductile Iron Material Gear Box Butterfly Valve

Product Description

1. Simple introductionofHard Seal Flange Ductile Iron Material Gear Box Butterfly Valve

The butterfly valve has mainly consisted of body, stem, disc, seat, and driver (manual, gearbox, pneumatic and electric Actuator) and so on. The on-off and controlling flow of the valve is made by turning the stem and disc together.

Material of Seat

Workingtemperature

Applicable medium

Natural rubber

≤85ºC

Water, air

CR

≤85ºC

Water, gas

NBR

≤120ºC

Water, oil

EPDM

≤120ºC

Water

Viton

≤150ºC

Water, steam, strong acid, strong alkali



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