The blast waves are powered from hydraulic, pneumatic, solenoid sources. The length ranges from 25-35mm and above, breadth from 16-38mm and above, height from 20-25mm and above, diameter from 13-26mm and above. The pressure range is up to 600 bar. The device is manufactured using brass.
Effectively used to isolate the blast furnace from hot blast stove in integrated steel plants and pig iron making facilities using stoves. Also are used as a stove shut-off valve and back draughting valve. For a burner shut-off valve the same design is adopted with wedge arrangements to achieve isolation of gas lines from stoves.