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  • Bi Directional Metal Seated Butterfly Valve For Power Station - China

    price: contact company for price


    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.


    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.

    Company Contact:

    • Phone: 8657757789961

    • Address: He yi Industrial Zone,Oubei Town, Wenzhou, China

    • Email: Email

    Published date: May 23, 2016 -

    • Business Description: ZheJiang Hisun automation instrument Co.,Ltd. is a valve company which integrates Researching, manufacturing, designing,sales and after services as a specialized unit. This company is located beautifully in the scenery, scenery joy person's China "township of the pump valve" north the Wenzhou cup the pump valve garden area, the transportation is convenient,the industry is centralized. We produce "HISUN" brand valve , quality reliabled, variety is completed with nothing .We took the lead among our peers in China in obtaining TS manufacturing license, ISO9001 certification, CE
      certification, API certification .The company according to ISO9001 manufacture standard strict. We to rely on Science and technology, we are innovated exertion all the time, exploitation various "HISUN" brand valves and we can according standard , material or drive way to design and produce high quality valves.The products of HISUN is protected for ahead of technique and manage, In accordance with the marketing philosophy of "all for users", we will application new technique , new technics ,new materials unceasingly to to open up and develop new products, we will provide better products and serve, there will be more efforts to construct modernization "HISUN".
      Established in 2008,As a control valve supplier specialized in designing and manufacturing high-end control valves and serving high-end customers.In addition, we have various advanced equipment needed for manufacturing control valves
      and nationally advanced control valves flow testing systems.Our products:linear motion control valves, self-operated control valves,ball valves,power station valves, butterfly valves. pneumatic actuators,
      Our goals:
      ---creating value for customers
      ---creating value for investors
      ---creating value for society
      ---creating value for personnel

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