Vacuum pumps refer to devices that use mechanical, physical, chemical, or physical-chemical methods to evacuate air from a container to achieve a vacuum state.Our vacuum pumps are devices or equipment that, in layman's terms, are used to improve, generate, and maintain a vacuum within a sealed space through various methods.
Maintenance and Care of Oil-Type Vacuum Pumps:
Regularly check the oil level position, and adjust it to meet the requirements if it does not comply. When the vacuum pump is running, the oil level should reach the center of the oil marker.
Regularly inspect the oil condition, and replace with fresh oil immediately if it becomes degraded to ensure the vacuum pump operates properly.
3. The oil change interval is determined based on actual usage conditions and the ability to meet performance requirements, at the discretion of the user. Generally, for new vacuum pumps, it is recommended to change the oil after approximately 100 hours of operation when removing clean, dry gases. After the black metal powder is no longer visible in the oil, the oil change interval can be appropriately extended.
4. Generally, vacuum pumps should be inspected after 2,000 hours of operation. Check the aging degree of the rubber sealing components, inspect for cracks in the exhaust valve blades, and clean any debris accumulated on the valve blades and exhaust valve seats. Wash all components within the vacuum pump cavity, such as rotors, vanes, and springs. Typically, gasoline is used for cleaning, followed by drying. For rubber parts, simply dry them with a cloth after cleaning. Handle and assemble parts with care to avoid damage.
5. Conditionally clean the pipes as well to ensure the pipeline remains clear.
6. After reassembly, a trial run should be conducted, typically running empty for 2 hours and changing the oil twice. This is due to the presence of a certain amount of volatile substances left in the vacuum pump during the cleaning process. Once the operation is normal, the equipment can then be put into regular use.
7. Inspect the vacuum pump pipeline and joints for any looseness. Rotate the vacuum pump by hand to test its mobility.
8. Add bearing lubricating oil into the bearing housing, observe that the oil level should be at the centerline of the oil mark. The lubricating oil should be changed or topped up promptly.
Remove the drain plug from the vacuum pump body and fill with water (or slurry).
Close the gate valves on the outlet piping and both the outlet pressure gauge and the inlet vacuum gauge.
11. Check the direction of the motor rotation.
Start the motor. Once the vacuum pump is operating normally, open the outlet pressure gauge and the inlet vacuum pump. After observing the appropriate pressure display, gradually open the throttle valve while checking the motor load.
Keep the flow and head of the vacuum pump within the range specified on the label to ensure energy-saving effects during operation.
14. During operation, the bearing temperature of the vacuum pump must not exceed the ambient temperature by more than 35°C, and the high temperature must not exceed 80°C.
15. If an abnormal sound is detected in the vacuum pump, stop immediately to inspect the cause.
When discontinuing the use of the vacuum pump, first close the valve and pressure gauge, then shut off the motor.
17. The vacuum pump requires oil changes every 100 hours during the first month of operation, and then every 500 hours thereafter.
Regularly adjust the packing gland to ensure normal dripping conditions within the packing chamber (preferably dripping in drops).
Regularly inspect the sleeve wear condition, and replace it promptly when excessive wear is detected.
20. When using vacuum pumps during the winter season, after parking, the water drain plug at the bottom of the pump body should be unscrewed to drain the medium completely. This prevents cracking due to freezing.
21. Long-term disuse of the vacuum pump requires disassembling the pump entirely, drying out the moisture, applying grease to the rotating parts and joints, and then reassembling it properly for safe storage.
