Butterfly valve malfunction how to solve

Butterfly valve malfunction how to solve? Butterfly valve is a fluid pipeline control unit, if in the daily use can't to do a good job of maintenance and maintenance related will make butterfly valve failure, affect the normal production and even cause the emergence of the accident. The butterfly valve in the event of a failure when how should solve? Wenzhou below butterfly valve to valve are introduced. Common faults for the butterfly valve sealing surface. Reason may be that the sealing face markings dirt, sand or other foreign material; Sealing surface or seal wear or damage; Sealing surface contact with surplus quantity is too small or tight set screw loosening, zhengzhou butterfly valve solution cleaning the sealing surface; Trim seal face or replace the sealing ring; Tighten the set screw tightly. The main fault is PLC work abnormal. Can be used by checking the power supply is correct, whether the PLC power supply voltage is 24 VDC: ground wire are in good condition; Input and output signal is correct; Input and output terminal connection is good; PLC itself whether the failure to find the reason, the solution guaranteed good connection correct, contact; Repair or replace defective electrical components; Replace PLC, import the right control program. Common fault is butterfly valve of the hydraulic system pressure maintaining performance is poor. Reason may be that the hydraulic components of mixed with sewage, or hydraulic pressure seal damage or interface leak oil way the system, and the solution is to clear the dirt, or replace or repair or blocked leak sealing components. Zhejiang letter mau valve co. , LTD. Main products include eccentric butterfly valve, ball valve, ball valve, gate valve, check valve, exhaust valve, filter, etc. , are widely used in water conservancy, electric power, petroleum, chemical industry, metallurgy, gas, heat supply, construction, shipbuilding and other industries. Tel: 0577 - 67989383.