knowledge of ventilation butterfly valve
As opening , closing and regulating device of ventilation and dust removal pipeline, ventilation butterfly valve is suitable for ventilation, dust removal and environmental protection systems in metallurgy, mining, cement, chemical industry and power generation.
The ventilation butterfly valve is processed into a sealing ring with the same material as the valve body. Its applicable temperature depends on the material selection of the valve body, and the nominal pressure is ≤ 0.6MPa. It is generally applicable to industrial, metallurgical, environmental protection and other pipelines for ventilation and regulating medium flow.
Its main features are:
1. Novel and reasonable design, unique structure, light weight and rapid opening and closing.
2. Small operating torque, convenient operation, labor-saving and dexterous.
3. Suitable materials shall be used to meet the requirements of low, medium and high medium temperatures and corrosive media.
Main technical parameters of ventilation butterfly valve
Nominal diameter DN (mm): 50 ～ 4800mm
Sealing test: ≤ 1% leakage
Applicable medium: dusty gas, flue gas, etc.
Drive type: manual, worm and worm gear drive, pneumatic drive and electric drive.
Material of main parts of ventilation butterfly valve:
Valve body: carbon steel, stainless steel, duplex steel, etc
Butterfly plate: carbon steel, stainless steel, duplex steel, etc
Sealing ring: carbon steel, stainless steel, duplex steel, etc
Stem: 2Cr13, stainless steel
Packing: PTFE, flexible graphite
