-FYH vertical submerged pump is a long shaft vertical centrifugal pump. Its liquid contact part is all manufactured by Teflon plastic alloy molding process. It has the characteristics of wide corrosion resistance, high efficiency, light weight, pumping without filling liquid, convenient maintenance and so on. And further strengthen the improvement of the pump body structure, using the back-pull structure, one person can easily carry out internal daily maintenance and parts replacement, without dismantling the pipe, its ingenious structural principle and stable working performance have reached the level of similar products in the world.

-FYH vertical submerged pump can install different forms of mechanical seals according to different use conditions, and its usage and matters needing attention are also different according to the different types of seals selected.

1. As the mechanical seal is generally suitable for use in clean, non-suspended particle media, the newly installed pipeline system and liquid storage irrigation should be washed carefully to prevent solid impurities from entering the end face of the mechanical seal and make the seal invalid.

2. In the medium that is easy to crystallize, frequent flushing should be paid to the use of mechanical seals. Before restarting after stopping, clean the crystal on the mechanical seal.

3. Disassemble the mechanical seal carefully, do not knock with hand hammer, iron, etc., so as not to destroy the dynamic and static ring cover.

4. If there is dirt that can not be removed, try to remove the dirt, rinse thoroughly and then disassemble it, so as not to damage the sealing element.

5. Before installing the mechanical seal, all sealing elements should be checked for failure or damage, and if so, they should be repaired or replaced.

6. The relative friction sealing surface of the moving ring and the static ring should be strictly inspected, and no minor scratches, bruises and other defects are allowed. All other parts, including pump body, impeller, sealing cavity, etc., should be washed clean before assembly, especially the dynamic and static ring temple surface, should be carefully cleaned with clean, soft cloth or cotton yarn, and then coated with a layer of clean grease or oil.

7. in the assembly, attention should be paid to eliminate the deviation and tighten the screw evenly to avoid deflection and make the seal invalid.

8. adjust the compression amount of the spring correctly. after the pump is installed, when you pull the rotor by hand, you should feel that the sealing spring not only has a certain amount of compression, but also can rotate briskly and flexibly without the feeling of bite. If it feels too tight or the plate does not move, it should be loosened properly.

9. For mechanical seals with external flushing, the flushing fluid should be opened before starting so that the sealing cavity is filled with sealing fluid. When stopping, stop the pump first, and then turn off the sealing washing fluid.