Air flow control valve in the production process, in addition to troubleshoot them at any time, it must also carry out regular maintenance and periodic maintenance. Different forms of air flow control valve failure and its causes are not the same. Here we take a look at the analysis of the four air-flow valve failure analysis: fault: Actuator belt off. Solution: Check the actuator stuck inside the transmission part is damaged; "zero" and "stroke" adjustment potentiometer is correct; the limit switch is correct. Failure II: air flow control valve actuator wholesale price does not move, the power lights and lights are not bright. Solution: Check the input signal polarity is correct; Asia-electric control valve control module comparison method to determine whether the exchange is good. Failure three: actuator position feedback signal is too big or too small. Solution: Check the "zero" and "travel" potentiometer adjusted correctly; replace the control module judges. Failure four: Actuator motor heat rapidly, shock crawling, short stop action. These four points are adjustable valve failure and solutions often occur in use for wind, I hope you must pay attention when using. First, the air-flow characteristics of the valve (l) off more Yefeng volume control valve to take over the same size with the national standardization ventilation ducts specified rectangular duct size. (2) air flow control valve leaves off and cis-open, ventilation, air conditioning, air purification system as a regulator. (3) The test measured air volume control valve tightness good, the relative amount of air leakage around 5% regulation performance. First, the air-flow characteristics of the valve (l) off more Yefeng volume control valve to take over the same size with the national standardization ventilation ducts specified rectangular duct size. (2) air flow control valve leaves off and cis-open, ventilation, air conditioning, air purification system as a regulator. (3) The test measured air volume control valve tightness good, the relative amount of air leakage around 5% regulation performance. First, the air-flow characteristics of the valve (l) off more Yefeng volume control valve to take over the same size with the national standardization ventilation ducts specified rectangular duct size. (2) air flow control valve leaves off and cis-open, ventilation, air conditioning, air purification system as a regulator. (3) The test measured air volume control valve tightness good, the relative amount of air leakage around 5% regulation performance. 

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