Ventilation butterfly valve is manufactured by welding steel plate, sealing ring is made of the same material as valve body, oil seal ring is installed on valve body, no visible clearance between sealing pairs, leakage rate is small. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent the sticking phenomenon caused by heat rising and cold contraction.
Norminal Pressure Mpa
Air, Coal gas, dusty gas
Stainless steel 304/316/316L
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It is widely used in the pipe system of metallurgical,chemical,electric power and other industries for the purpose of cutting off or connecting.