Sanitary Diaphragm Valve is a common valve used to control fluids, widely used in biopharmaceuticals, food and beverages and other fields. However, due to the complexity of the use environment and operating conditions, aseptic diaphragm valves may sometimes fail. The following are some common failures and their repair methods:

1. Leakage problem:

- Check the seal: First check whether the seal on the valve is damaged or aged. Replace the seal with a new one if necessary.

- Clean the valve: If the leakage persists, it may be because of dirt or foreign matter accumulated inside the valve, causing blockage. The valve can be disassembled and thoroughly cleaned, and all parts can be reassembled after being completely dry.

2. Difficult switching:

- Lubricant check: Check whether the lubricant used in the valve actuator is sufficient and there is no excessive sediment or dirt.

- Adjust the air pressure: If the lubrication is good but the switch is still difficult, the pressure in the air supply system can be appropriately adjusted to provide higher power.

3. Blockage problem:

- Clean the valve body: If it is found that the valve cannot be fully opened or closed, it may be blocked by dirt or foreign matter inside the valve body. The valve can be disassembled and thoroughly cleaned to ensure that the passage is unobstructed.
- Check the actuator: Check whether the valve actuator is working properly. If necessary, replace the faulty actuator.
4. Pressure relief problem:
- Check the air supply system: Pressure relief may be caused by leaks in the air supply system. Please carefully check the connections and pipes, and find and repair all leaks.
- Recalibration: If the pressure relief problem persists, you can try to recalibrate the valve to ensure correct operation and sealing performance.
Before performing any repairs, make sure you are familiar with the operating manual and relevant safety regulations of the aseptic diaphragm valve. At the same time, when repairs involve high temperature, high pressure or other hazardous environments, be sure to take appropriate safety measures and seek the help of professionals to solve the problem to ensure your own safety.