Circulating water multi-purpose vacuum pump is a commonly used equipment, widely used in laboratory, industrial, and medical fields. It uses a water circulation system to cool and protect the operation of the pump, ensuring its efficient and stable operation. However, as the usage time increases, impurities and pollutants in the water will gradually accumulate, affecting the performance and lifespan of the pump. The following will introduce the water replacement steps of the vacuum pump to help users operate correctly and maintain the efficient operation of the equipment. Before replacing the water in a multi-purpose vacuum pump, the following preparations need to be made:

1. Stop pump operation: Ensure that the vacuum pump is in a stopped state to avoid accidents during water replacement.

2. Disconnect power supply: Cut off the power supply of the vacuum pump to ensure safe operation.

3. Prepare fresh water sources: Prepare sufficient fresh water sources to ensure that the water quality meets the requirements. Old water can be replaced with tap water or pre treated water. The following are the water replacement steps for a circulating water multi-purpose vacuum pump, for users' reference:

1. Drain old water: Find the drain valve of the vacuum pump and open it. Let the old water flow out of the drain valve, ensuring that all the old water in the pump is drained.

2. Cleaning the water tank: After closing the drain valve, open the cleaning port of the water tank. Clean the dirt and sediment in the water tank with clean water to ensure its cleanliness.

3. Add new water: After closing the cleaning port of the water tank, connect a fresh water source to the water tank. Gradually open the water supply valve and allow new water to slowly flow into the water tank. Ensure that the water level in the tank is appropriate, not too high or too low.

4. Check water flow: Open the valve of the circulating water system to ensure that new water can flow smoothly into the cooling system of the pump. Check the stability and flow rate of the water flow to ensure normal operation.

5. Start the pump: After ensuring the normal operation of the water circulation system, reconnect the power supply of the multi-purpose vacuum pump. Start the pump, observe its operating status and noise to ensure normal operation.

6. Monitoring water quality: Use water quality monitoring devices or test strips to detect the water quality of circulating water. Ensure that the water quality meets the requirements, such as pH value, conductivity, and microbial indicators.

7. Regular maintenance: Regularly inspect the filter elements and filters of the circulating water system, and clean and replace them as needed. Regularly clean the water tank and cooling system to prevent the accumulation of dirt and sediment.

By following the above steps to replace the water in the circulating water multi-purpose vacuum pump, the efficient operation of the equipment can be maintained and its service life can be extended. The importance of regular maintenance and monitoring of water quality cannot be ignored, ensuring the cleanliness and stability of circulating water, and providing reliable support for experiments and industrial production.