Proper Maintenance of Fluorine Plastic Pumps

Fluorine plastic pumps are widely used in the chemical and pharmaceutical industries due to their excellent corrosion resistance, as a result their maintenance is particularly important. Timely inspection and replacement of worn sealing elements and impellers, along with keeping the inside and outside of the pump body clean, can effectively prevent clogging and leakage. In addition, regularly lubricating the bearings and checking the motor insulation status ensure the long-term stable operation of the pump. Through these fluorine plastic pump maintenance measures, not only can improve the working efficiency of the pump, but it can also significantly reduce downtime and maintenance costs, ensuring the reliability and safety of the entire production system.

Requirements after The Fluorine Plastic Pump Stops Operating

• After the fluorine plastic pump stops operating, the inlet valve of the pump should be closed, and after the pump cools down, the valves of the auxiliary systems should be closed in sequence.
• Shutdown of high-temperature pumps should be carried out in accordance with the equipment's technical documentation. After shutdown, the pump should be rotated half a turn every 20–30 minutes until the pump body temperature drops to 50 °C.
• When shutting down a low-temperature pump, unless otherwise specified, the pump should always be filled with liquid, and the suction and discharge valves should stay open. For low-temperature pumps with double-end mechanical seals, the level controller and sealing liquid in the pump’s seal chamber should maintain the required seal pressure.
• For pumps handling media that tend to crystallize, solidify, or settle, measures should be taken after shutdown to prevent clogging, and the pump and pipeline should be promptly flushed with clean water or another suitable medium.
• Drain any residual liquid from the pump to prevent corrosion and freezing damage.

Storage of Fluorine Plastic Pumps

• Pumps that have not yet been installed should have a suitable rust inhibitor applied to unpainted surfaces, bearings lubricated with oil should be filled with appropriate oil, and bearings lubricated with grease should only be filled with one type of grease; do not use mixed greases.
• Flush the suction and discharge lines, pump casing, and impeller with clean liquid for a short time, and drain the flushing liquid from the pump casing, suction line, and discharge line.
• Drain the oil from the bearing housing, refill with clean oil, clean the grease, and refill with new grease.
• Seal the suction and discharge ports, store the pump in a clean, dry place, protect the motor winding from moisture, and spray the inside of the pump casing with rust and corrosion inhibitors.
• Rotate the pump shaft once a month to prevent freezing, and lubricate the bearings.

You can refer to the above operations to maintain your fluorine plastic pump. If you encounter any issues during maintenance, please feel free to contact us. We will do our best to assist you in improving the performance of the centrifugal pump and ensuring the stable operation of the system.