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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 introduction of Hard 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

Working temperature

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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