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  • Vacuum Isolated Gate Valve Of Power Plant Valves - China

    price: 300.00 Dollar US$

    Product overview
    Chief structure features and usages
    1. The main body of this series valve uses a casting and forging structure and has a dual-direction seal of parallel secondary semi-forced dual-sealing and the motions of both the sealing face to its due position and the tapered block to wedge-up are separated to have zero lead age come true.
    2. The sealing face is of a small frictional force if motion, lightly opened and closed and has a self compensation function for wearing.
    3. Simple structure easy to more than 10 years of long duration.
    4. A vacuum sealing structure is set in the filling chamber on the valve cover, which has the action of self-expanding and impacting, the joint faces are sealing with the expansive material of high strength to completely isolate the system from air.
    5. Two connection ways of b flange and welding, two ways to drive of heand-and eletric-operation. The valve can be used as the open & close device for the pipelines under the working temperature Less than425degree centigrade and 550 degree centigrade and the working medium of water, steam or air;especially suitable to act as the vacuum isolating sealing for the system of steam turbine's considernation and vacuum negative pressure in steam power plants.
    Valve ctrucure type:
    Mode1 NKJ61 Vacuum isolating stop valve;Model NKZ44 and NKZ64 Vacuum isolating gate valves.
    Manufacture and acceptance standard:
    1.Manufacture, acceptance and technical conditions per GB/T12234, GB/T12235.
    2. Face-to face dimensions per GB/T12221.
    3. Flange sizes per JB/T78-79, GB/T9112-9124.
    Material for main parts
    Body, Bonnet: 25 or WCB
    Valve stem:Cr.stainless steel, 25Cr2MoV
    Disc:Cr.stainless steel, 12Cr1MoVA。
    Sealing face:H: alloy steel, Y: carbide alloy
    Yoke nut:Al bronze
    Packing:Expanding compound graphite
    Fastener:High-grade carbon steel, Cr.Mo steel


    Company Contact:


    • Phone: 8657757789961

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

    • Email: Email


    Published date: August 12, 2016 - Modified date: September 3, 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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