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Location:PRODUCTS >> Metallurgical valve >> Pneumatic three-way switch valve
Pneumatic three-way switch valve
Model: SQD643X-1 / 1.5 / 2.5
Nominal diameter: DN500 ~ 2400mm
Temperature: ≤80 ℃ -500 ℃
Drive: pneumatic, hydraulic
Medium: dust gas, gas, air

Structural features and uses

This valve is a kind of ideal equipment for gas switching. It is developed by our factory which absorbs the advanced technology of similar products at home and abroad. The valve has the advantages of simple structure, convenient operation, reliable sealing, accurate switching and long service life. It is widely used in metallurgy , Petrochemical, environmental protection and other industries on-site operation or long-distance control. It is especially suitable for the recovery and dissipation of controlled gas in the converter gas recovery unit of steel plant. The valve is mainly composed of three bodies and two sealed butterfly valve and two gas (oil) cylinder, connecting rod, control box.

The main performance

Nominal pressure 0.1MPa proper temperature SQD6 / 7 43X Butterfly valve rubber seal ≤ 80 ° C ≤ 120 ° C
Seal test pressure 0.11MPa SQD6 / 7 43H Butterfly valve metal seal ≤ 350 ° C ≤ 500 ° C
Strength test pressure 0.15MPa Air pressure (Pneumatic three-way switch valve) 0.4 ~ 0.6MPa
Opening and closing switching time ≤15s Supply pressure (Hydraulic three-way switch valve) 6.3MPa
Suitable media Dust gas, flue gas, gas, air and so on


The next:Vent valve
The previous:Water seal check valve
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