Type 1, the closing of the valve is pushed down, implementation of the structure of the thrust is not enough, there is no pressure when debugging is easy to achieve complete location, so when there is thrust, thrust insurmountable liquid, close does not reach the designated position, solution: change the thrust larger actuators, or replace the balancing valve core to reduce unbalanced force of medium,
2, electric control valve to debug the cause of leakage, the solution: to set limits,
3, choose the error caused by the cavitation corrosion caused by internal leakage, electric control valve solutions: process improvement, selection of multi-stage decompression or sleeve valve,
4, electric control valve manufacturing quality is poor due to internal leakage, the solution: to redo the sealing surface,
5, medium washed, aging caused by the internal leakage of electric control valve, the solution: reset actuators, regular maintenance and calibration,
6, zero inaccurate actuator, the valve is not fully closed, the adjustment method: 1) manual closed die valve (must confirm the fully closed); 2) forcibly close the valve manually again, not much stress; 3) rotary (open valve direction) half rotation; 4) and then adjust the spacing,
7, electric control valve control part affect the internal leakage of the valve, the solution: to set limits,