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; 2. The connecting rod piston is stuck by a foreign body; |
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; 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; |