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Stainless Steel Pneumatic Butterfly Valve

Keywords: metering pump accessories

Classification:

Pneumatic butterfly valve

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  • DESCRIPTION

    Advantages of stainless steel pneumatic butterfly valve:

     1. Pneumatic stainless steel butterfly valve has compact structure, small size, light weight, flexible operation and easy use. 

    2. The stainless steel butterfly valve adopts a three-dimensional eccentric elastic or multi-layered hard sealing structure, with reliable sealing performance, and the soft seal can achieve zero leakage; 

    3. Pneumatic stainless steel butterfly valve has the characteristics of high temperature resistance, high pressure resistance, corrosion resistance and wear resistance.

    4. It has a two-way sealing function and is easy to install. It is not controlled by the flow direction of the medium or affected by the spatial position during installation, and can be installed in any direction.

     

     Stainless steel pneumatic butterfly valve structure
    Stainless steel pneumatic butterfly valve structure diagram

     

    Product parameters

    Technical parameters of stainless steel pneumatic butterfly valve:
     

    Nominal diameter

    DN50~DN1200(mm)

    Pressure Level

    PN1.0、1.6、2.5、6.4MPa

    Connection method

    Clamp type, flange connection

    Sealed form

    Metal hard seal

    Drive mode

    Air source driven, compressed air 4~7bar (can be equipped with handwheel)

    proper temperature

    -40℃~550℃

    Applicable media

    Water, steam, oil, acid corrosiveness, etc. (high temperature occasions)

    control method

    Switch type (switch off control), intelligent adjustment type (4-20mA signal)


    Working principle of stainless steel pneumatic butterfly valve:

    Stainless steel pneumatic butterfly valve uses compressed air (air compressor) as the power source, and drives the pneumatic actuator through the solenoid valve reversal. The pneumatic actuator drives the disc to rotate back and forth from 0 to 90°, thereby To open and close the valve. According to the needs of working conditions, a valve positioner can be installed to control the rotational opening of the disc to achieve intelligent regulatory control of various parameters such as medium flow rate.


    Stainless steel pneumatic butterfly valve parts materials:

     

    Part Name

    Material

    valve body

    Stainless steel, chromium molybdenum steel, alloy steel

    butterfly plate

    Cast steel, alloy steel, stainless steel, chromium molybdenum steel

    sealing ring

    Stainless steel multi-layer hard seal

    Stem

    2Cr13, 1Cr13 stainless steel, chromium molybdenum steel

    Bearing

    Austenitic stainless steel, 304 nitrided

    filler

    flexible graphite