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购买Bi-directional Metal-seated Butterfly Valve for power station   , 价格 , 图片 Bi-directional Metal-seated Butterfly Valve for power station , 从ZHEJIANG HISUN AUTOMATION INSTRUMENT CO.,LTD. 进料泵 在 Allbiz 中国
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    购买Bi-directional Metal-seated Butterfly Valve for power station   , 价格 , 图片 Bi-directional Metal-seated Butterfly Valve for power station , 从ZHEJIANG HISUN AUTOMATION INSTRUMENT CO.,LTD. 进料泵 在 Allbiz 中国
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    购买Bi-directional Metal-seated Butterfly Valve for power station   , 价格 , 图片 Bi-directional Metal-seated Butterfly Valve for power station , 从ZHEJIANG HISUN AUTOMATION INSTRUMENT CO.,LTD. 进料泵 在 Allbiz 中国
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    ALL.BIZ中国甘肃产品甘肃水,天然气,供暖暖气设备 锅炉设备进料泵Bi-directional Metal-seated Butterfly Valve for power station

    Bi-directional Metal-seated Butterfly Valve for power station

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    购买 Bi-directional Metal-seated Butterfly Valve for power station
    介绍
    生产国中国

    Overview

    Features and Advantages

    Stem Blow Out Prevention Ring

    Prevent stem ejection in accidental working situation.

    Replaceable Disc Seal

    Reduce field maintenance costs.

    Live Loading Packing Gland

    Standard low emission stem seal with 0-20 PPM live-loading provides predictable and constant packing compression for more than 5000cycles before adjustment or re-packing.

    Metal-to-Metal Patented Sealing System

    Stellite Alloy HRC 40-60 degree centigrade

    Disc Position indication

    Stem end provides fool-proof verification of disc location.

    Universal Mounting

    Actuator Mounting Plate and Stem Connection conform to ISO5211

    Principle Of Operation

    The SDF Triple Offset Butterfly Valve provides a bi-directional bubble tight shut-off. This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal with sufficient“wedging”to ensure a uniform seal contact.

    THE TRIPLE OFFSET GEOMETRY

    OFFSET 1 The shaft is offset behind the seat axis to allow complete sealing contact around the entire seat.
    OFFSET 2 The shaft centerline is offset from the pipe and valve  which provides interference free opening and closing of the valve.
    OFFSET 3 The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.

     

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