What Is An Electric Butterfly Valve?

Overview of Electric Butterfly Valve

The electric butterfly valve is an automatic device with an electric actuator and a butterfly valve body. It is characterized by the butterfly valve’s rapid 90° rotation opening. The outer circle of the disc is designed with a spherical surface, which significantly improves the sealing performance and also extends the service life of the valve. Service life. Once a power failure occurs, manual operation can be performed temporarily without affecting use.
Whether used as a switch or used for flow regulation and medium interception, electric butterfly valves have demonstrated their outstanding performance. This type of valve is widely used in automated switching valves, especially in water systems or ventilation systems in commercial buildings, public buildings, and urban pipe networks, where it plays a key role in regulating or switching volume control.

The main connection methods of electric butterfly valves are flange type and clamp type; the main sealing forms of electric butterfly valves are rubber seal and metal seal.

Electric butterfly valve according to the structure form classification

(1)Center seal

(2)Single eccentric seal electric butterfly valve.

(3) double eccentric seal electric butterfly valve.

(4) three eccentric seal electric butterfly valves.

Electric butterfly valve according to the sealing surface material classification

(1) soft sealing side by a non-metallic soft material to the non-metallic soft material composition. Seal by the metal hard material to the non-metallic soft material composition.

(2) Metal hard seal electric butterfly valve. Seal by the metal hard material to metal hard material composition.

Electric butterfly valve according to the sealing form classification

(1) forced seal: elastic seal electric butterfly valve. Seal specific pressure by the electric valve closure valve plate extrusion valve seat, valve seat, or valve plate elasticity generated. Applied torque sealing electric butterfly valve, sealing pressure generated by the torque applied to the valve shaft.

(2)Pressurized sealing electric butterfly valve: the sealing pressure is generated by the elastic sealing element on the valve seat or valve plate.

(3) automatic sealing electric butterfly valve: sealing pressure is generated automatically by the medium pressure.