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SHANGHAI HUIXUAN VALVE

Tel:+86-17717520739

Email:info@shxvalve.com

Address: NO.720, Suide Road, Jiading District,Shanghai, China.
 

Pneumatic double eccentric butterfly valve

Model:

  • Port size:DN50~2000
  • Pressure:PN10 ~ 25 CLASS 150
  • Medium:Water,etc
  • Temperature :-20~150℃
  • Body material:ductile iron, cast steel, stainless steel
  • Connection:Flanged or wafer
  • Position type:On-off type
  • Characteristic:Double eccentric structure
  • Voltage:/
  • Other:Rubber seated, good seal
Pneumatic double eccentric butterfly valve introduction:
Pneumatic double eccentric butterfly valve  consists of pneumatic actuator and double eccentric soft seated butterfly valve, according to different generally can be divided into flange connection or wafer,Pneumatic double eccentric butterfly valve material: cast iron, cast steel, stainless steel and so on, the body part adopts double eccentric structure, valve disc and seal mechanism design is unique, Pneumatic double eccentric butterfly valve has excellent cutting performance and durability, has cut off, adjust the dual function at the same time, long life, energy-efficient and butterfly valve.Because thePneumatic double eccentric butterfly valve closing and gate valve closing, is completed by torque, that is, the greater the valve closing torque, the better the sealing of the seat, so it is said that the triple eccentric butterfly valve is 90° rotary gate valve.

Pneumatic double eccentric butterfly valve application range:
Pneumatic double eccentric butterfly valve is suitable for water, sewage, sea water, air, steam, gas, combustible gas, corrosive medium, oil and food and other media, the highest working temperature can reach 550℃.Pneumatic double eccentric butterfly valveused in petroleum, chemical, metallurgy, electricity, food, medicine, water supply and drainage, gas transport and other different media pipeline, do switch off or adjust the medium flow parameters.
 
Pneumatic double eccentric butterfly valve performance advantages:
1. The use of double eccentric sealing structure, seat and butterfly plate between the wear is small, and the sealing surface wear resistance, prolong the service life;
2. According to the connection method, it can be divided into double eccentric butterfly valves of pneumatic pair type and Pneumatic actuator triple eccentric butterfly valveflange, which can be used in different process pipelines;
3. Large diameter butterfly valve butterfly plate can be used quilted structure, with high strength, large flow area, small flow resistance;
4,The use of bidirectional pressuredouble eccentric multi-level hard sealing structure, with bidirectional sealing function, installation is not limited by the flow of media, also not affected by the space position, can be installed in any direction;
5. With metal hard seal and elastic seal double advantages, no matter in the case of low and high temperature, have excellent sealing performance, corrosion resistance, long service life and other characteristics.

Pneumatic double eccentric butterfly valve Technical parameters:
Nominal diameter: DN50 ~ DN2000(MM)
Nominal pressure:PN1.0, 1.6, 2.5, 4.0MPa
Connection form :wafer type, lug type,flange type
Seal form: double eccentric rubber soft seal
Air supply pressure: 0.4~ 0.7mpa
Action range 0 ~ 90°
The leakage amount is 10-4 of Kv value according to GB/ t4213-92
Body material: carbon steel, 304, 316 stainless steel
Disc material: carbon steel, 304, 316 stainless steel
Basic error band locator: less than ±2% of the total stroke
Applicable temperature: -29℃ ~ 150℃ 
Actuators: GT, AT, AW series single action, double action pneumatic actuators
Control mode switch two mode (gas on and gas off), adjustable (4-20ma analog control)

Pneumatic double eccentric butterfly valve accessories:
1 Electric-Pneumatic (Pneumatic-pneumatic) positioner for regulating ball valve
2 Valve position transmitter
3 solenoid valve
4 limited switch
5 Air filter reducer
Pneumatic butterfly valve accessories
 
 

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