Fault Phenomenon | Fault cause | Methods |
Pond overflow | 1. Pilot valve rubber gasket damaged; 2. The float weld is leaking; 3. The connecting rod piston is stuck by a foreign body; | 1. Replace the gasket; 2. Replace the float ball; 3. Removing debris; |
Low Water Level | 1. Debris in the pilot body锛 2. The connecting rod piston is stuck by a foreign body锛 | 1. Removing debris; |
Abnormal Noise | 1. Debris in the valve body; 2. The closing speed is not reasonable | 1. Removing debris; 2. Adjust needle valve opening; |
The Disc cannot be Closed or Closed Properly | 1. Catheter rupture or leakage at its junction; 2. The spring in the main valve breaks or for other reasons causes the diaphragm to break; 3. Check valve failed; 4. The pilot valve failed; 5. Sealing surface damage; 6. Debris in the valve body; | 1. Replace the catheter or tighten its connector; 2. Check the spring锛 3. Repair or replace check valves; 4. Repair or replace pilot valves; 5. Replace the sealing surface; 6. Removing debris; |
Leakage at Valve Body and Bonnet Joint | Gasket damage; | Replace the new gasket; |