The LCW high-viscosity pump is available in two drive configurations: a belt-driven system and a gear reducer-driven system. This type of Roots pump offers several advantages, including low rotational speed, high efficiency, compact design, large flow capacity, low power consumption, strong self-priming ability, and no need for external lubrication. It is easy to operate and can be widely used in various industries. For instance, it is ideal for transporting petroleum products such as gasoline (with copper blades), crude oil, paint, lubricating oils, glass glue, oleic acid, toothpaste, and light alkaline liquids like soap processing solutions. In the food industry, it can handle liquids such as soy milk, yeast, and syrup. Additionally, it is suitable for loading and unloading tank trucks and vessels, offering fast, efficient, and user-friendly operation with the ability to reverse direction.
1. Always check the oil level regularly. If the oil level does not meet the required standards, adjust it accordingly. When the Roots pump is running, the oil should be at the center of the oil gauge mark.
2. The oil change interval depends on usage conditions and whether the oil still meets performance requirements. Users may decide based on their specific needs. For a new Roots pump that handles clean and dry gas, it is recommended to change the oil once a month initially. Once there is no visible black metal powder, the oil change interval can be extended accordingly.
3. Regularly inspect the oil quality. If the oil appears degraded or contaminated, replace it promptly with fresh oil to ensure the Roots pump operates smoothly and efficiently.
4. Under normal operating conditions, it is advisable to perform an inspection after 2000 hours of operation. Check the condition of the silicone seals for signs of aging, inspect the exhaust valve for cracks, and clean any dirt buildup on the valve plate and exhaust seat. Components inside the pump chamber, such as rotors, vanes, and springs, should generally be cleaned using gasoline and then dried. After cleaning rubber parts, wipe them with a dry cloth. Handle all components with care during reassembly.
5. Add lubricating oil to the bearing housing. Ensure the oil level is at the center of the oil gauge. Replace or top up the lubricant as needed to maintain proper function.
6. Inspect the Roots pump’s piping and joints for looseness. Manually turn the pump to check if it rotates smoothly without resistance.
7. After reassembling, conduct a test run. It is recommended to run the pump for two hours and change the oil twice. This helps remove any residual volatile substances left from the cleaning process, ensuring the pump is ready for normal operation once it runs smoothly.
8. Start the motor and allow the Roots pump to run normally. Open the outlet pressure gauge and the inlet valve. Once the pressure reading is stable, gradually open the gate valve and monitor the motor load.
9. Try to keep the pump's flow and head within the range specified on the nameplate to ensure it operates at its most efficient point, maximizing energy savings.
10. When stopping the pump, first close the gate valve and pressure gauge, then shut off the motor.
11. During operation, the bearing temperature should not exceed 35°C above ambient temperature, and the maximum allowable temperature is 80°C.
12. In the first month of operation, change the lubricant after 100 hours. After that, change the oil every 500 hours.
13. Regularly adjust the packing gland to ensure that the leakage from the packing chamber is controlled—ideally, a slow drip is acceptable.
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