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How to replace the centrifugal pump PTFE mechanical seal

by:Lepu Seal     2022-09-17
How to replace the centrifugal pump PTFE mechanical seal
Compared with ordinary mechanical seals, it is more difficult to replace PTFE mechanical seals than Grundfos mechanical seals; after a little careless replacement, there will still be a phenomenon of liquid leakage cartridge mechanical seals. The following operation steps and precautions for replacing the PTFE mechanical seal are provided for your reference. 1. The assembly steps of the impeller end of the centrifugal pump PTFE mechanical seal The first step: put the centrifugal pump PTFE mechanical seal spring on the impeller shaft, with the side with the fish facing up. Step 2: Put the stainless steel gasket. The third step: put three tetrafluoro gaskets (the tetrafluoro gaskets need to be soaked in the boiling water of imported mechanical seal for one minute): first put the gaskets with the round face up and the flat face down; then put one side with a groove The PTFE gasket (the groove face is down); finally put a grooved PTFE gasket (the groove face down). Step 4: Release the ring (put the grooved side down, and the groove matches the catch on the spring). 2. Assembly steps of the separator end of the centrifugal pump Step 1: The radial ring is soaked in water for one minute. Step 2: The radial ring is placed on the inner hole of the separator (the black side is facing up), and a soft cloth is placed on it and pressed with a stick (Note: the stick must be flat).
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