OEM High Quality Electric Ventilation Butterfly Valve Butterfly Damper Valve for Ash

Ventilation butterfly valve is manufactured from welded steel, with advantage of short structure, light weight, easy installation.  Motorized butterfly valve drive torque is small, flexible to open and close, easy to operate.  Ventilation butterfly valve body is equipped with an oil seal ring, and there is no viable gap between the sealing surfaces and the leakage rare is small.  Ventilation valve of the expansion gap between disc equipped with a variety of actuators, such as manual actuator, worm gear actuator, pneumatic actuator, electric actuator, Ventilation valve is widely used in metallurgy, oil, electricity, building materials, miming and other industrial pipelines, to control and regulate the medium.  Ventilation valve can be applicable medium:gas, dust-laden gas, flue gas and others.  the ball valve, the globe valve, the regulating valve, the butterfly valve and the like with the advantages of small volume, light weight, small flow resistance, no slag accumulation, easy installation and easy disassemble.   The flow resistance is large, occupying space, easy to accumulate slag, and difficult to install and maintain.   Therefore, a large number of general-purpose cut-off gates and regulating gates are replaced by knife-type gate valves.