After the failure of electric valve?

Wuxi east technology co. , LTD. Is a collection of the control valve industry manufacturing, development, production, assembly, sales and service in the integration of science and technology enterprises, professional research and development of electric valve, pneumatic valves, hydraulic valves, pneumatic actuators and various kinds of complete sets of pneumatic valve. Our company produce all kinds of pneumatic ball valves, butterfly valves, plug valves, regulating valve, gate valve, globe valve, flat gate valve and pneumatic device or valve products. Electric valve in use process often appear all sorts of problems, work difficult for production. Wuxi east the summary of electric control valve industry valve troubleshooting process, users can order, facilitate accurate search problem, shorten repair available: 1. Manual operation of electric valve packing gland painfully twist too tight, when an accident within the valve to loose gland, remove the check valve 2 immediately. Not action of electric valve, power on, the input signals are not bright should consider may be the input signal without or input signal polarity +, - 3. To limit the motor does not stop, upper and lower CAM adjustment improper, limit switch failure or bad wiring, such symptoms after adjustment to immediately update limit CAM, change the limit switch and limit switch wiring 4 correct connection. Don't start of electric valve, power on, the input signal lights may be a power supply or with low voltage, the input signal error, the surrounding temperature or using high frequency and high capacitance breakdown, then to the input signal switch properly reduce the surrounding temperature, reduce use frequency and sensitivity; In capacitance change wire or even a good conductor is connected the corresponding plug 5. Electric shock, fever is likely to be ac input signals, and the high sensitivity or potentiometer and wiring problems caused by bad must check input signal or adjust potentiometer sensitivity lower sensitivity to eliminate interference check normal 6. Electric valve is too big or too small a hair loss of signal is bad potentiometer is installed, zero adjustment and trip, check the potentiometer installation, adjust potentiometer zero and trip 7. Motor fever, on the way to stop operation lead to the happening of this kind of problem should first consider the heavy load and overload protection thermal protection action; Zero adjustment and stroke, regulating valve, foreign body in it gland screw too tight, should check valves to rule out a load or to reduce the environment temperature, adjust potentiometer zero and trip