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标题:Butterfly valve
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Butterfly valvesWINDMILL VALVE Series Triple Eccentric butterfly Valve offers 2 main categories: the soft seal Type and metal to metal seal type. The metal Seal Series, WINDMILL adopt Multi Layer Metal Seat. The Connection with wafer type, Lug type and flanged type will be available.Butterfly valve is a type of valve which can be used in a variety of chemical services. They are available with small dimensions allowing for use in areas where space is limited, and they allow a high coefficient of flow.A butterfly valve is composed of body, soft seat or hard seat, disc, stem, packing, notched position plate, and a lever or gear. The seat is under compression when it is mounted in the valve body, thus making a seal around the periphery of the disc both upper and lower points where the stem passes through the seat. Packing is provided forming a positive seal around the stem for added protection in case the seal formed by the seat could become damaged.Butterfly valve Design Construction and
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