The electric butterfly valve belongs to one of the electric valves and electric regulating valves. The connection modes of electric butterfly valve mainly include: flange type and wafer type; The sealing forms of electric butterfly valve mainly include rubber seal and metal seal. The electric butterfly valve controls the switch of the butterfly valve through the power signal. This product can be used as the shut-off valve, control valve and check valve of the pipeline system. With manual control device, once power failure occurs, it can be operated manually temporarily without affecting the use.

Precautions for field application of pneumatic butterfly valve Pneumatic butterfly valve is usually composed of a combination of pneumatic actuator, valve body and some accessories after commissioning. This article mainly introduces the precautions for the field application of pneumatic butterfly valves.
1. The signal valve sent by the control cabinet does not act. According to the field observation, the pneumatic conditioning butterfly valve is installed with a solenoid valve on the premise of the device locator. The strong current of the solenoid valve disturbed the signal output of the control cabinet, and the valve could not receive the signal, so it could not work normally. Solution: remove the solenoid valve and remove the strong current disturbance equipment for normal operation (note: the function of the solenoid valve is to play the role of opening and closing the valve, and the effect of the positioner is to control the opening of the valve with a 4 to 20 mA signal, so it is not necessary to install the solenoid valve when the positioner is installed).? Precautions for field application of pneumatic butterfly valve