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  • Single Seated Control Valve

Single Seated Control Valve

  • Views: 2308
  • Size: 1/2" ~ 8"
  • Pressure Rating: ASME CLASS 150~2500
  • Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel
  • Temperature Range: -196℃~550℃
  • Single Seated Control Valve
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    Description

    Technical Specifications

    SPECS Single Seated Control Valve have a top guided unbalanced trim structure,It is a compact and simple structure, easy operation and maintenance which can be used under various applications, especially under normal pressure and normal pressure drop. Valves of this type are the most economical and reliable. Valve trim of unbalanced structure only applies to lower pressure drop.


    Applicable Standard

    Design & Manufacture Standard: IEC 60534-2006

    Face to Face: ISA-75.03-1992

    End Connection: ASME B16.5, EN1092-1, GOST33259, ASME B16.25

    Test Standard: IEC60534-4


    Products Range

    Size: 1/2" ~ 8"

    Pressure Rating: ASME CLASS 150~2500

    Material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel

    End: Flanged (RF, RTJ), Butt Weld, Socket Weld.

    Temperature Range: -196℃~550℃

    Seat Leakage: ANSI Ⅳ(0.01%) or Ⅵ(bubble-tight)

    Bonnet Type: Standard, Fin-Extension, Long-Extension, Bellows,Steam Jacket


    Design Features

    1. Top oriented action and low flow resistance design

    2. Especially suitable for occasions with small pressure difference and can be applied to non-cavitation liquid and gas with noise in the specified range

    3. Small size, light weight, simple flow with big capacity in the valve body

    4. Especially suitable for controlling medium flow with suspended solids and granular. Avoid coking, bonding, blocking,with good control of high viscosity liquids and slurries

    5. By using special materials (carbide, ceramics etc.) for valve trim and various surface treatment technology (nitriding, hardening treatment), valve can be used for a variety of harsh conditions

    6. Plug with precise design makes valve flow to be almost perfect equal percent and linear, so that the valve has a high precision, high performance controlling function


    Benefits

    1. High sealing performance, cost-effective

    2. Non-pipeline connection can be used for actuator and positioner, with high speed installation, high reliability and small installation space. Can be equipped with multi-spring Pneumatic Diaphragm Actuator or electric mechanism

    3. Removal and installation of valve body and trim is simple and this makes future detection and maintenance easier

    4. The parts commonality are improved and the product cost of manufacturing and maintenance are reduced due to the modular design of the valve trim.


    The GA Of Single Seated Control Valve

    Body part selection map

    Various flow characteristics are optional


    Soft seat structure


    The selction of control valve bonnet

    Control valve bonnet is a part located between the actuator and the valve body assembly, Its main function is to prevent media leakage and connect the actuator. In order to adapt to different temperature and different medium sealing requirements, There are 5 common bonnet forms as follows:

     

    Standard Bonnet

    Standard bonnets are suitable for normal temperature applications.

    Recommended working temperature range: -20 to +230°C



    Extension Bonnet


    Extension bonnets are used for either high or low temperature service to protect valve stem packing from extreme process temperatures.

    Recommended working temperature range:-60 to +450°C



    Bellows Bonnet

    Bellows Bonnets are often used when the process fluid is toxic, volatile, radioactive, or highly expensive.

    Cryogenic Bonnet


    Cryogenic Bonnets are used for low temperature working condition, especially for LNG(liquid natural gas).

    Recommended working temperature range: -196 to -60°C



    Jacket bonnet

    Jacket bonnets are mainly used for high viscosity medium that will solidify at room temperature.

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    • Control Valve
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    • Strainer
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    • Check Valve
    • Strainer
    • Plug Valve
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    +86-577-67379084

    info@specsvalve.com

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    Dong ou Industrial Zone, Oubei Town,Wenzhou City, Zhejiang Province,China

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