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Briefly describe the skill request of the cartridge mechanical seal device

by:Lepu Seal     2021-06-08
Briefly describe the skill requirements of the cartridge mechanical seal device The cartridge mechanical seal is a mechanical component with higher precision, which has a great impact on the accurate device of its Grundfos mechanical seal and the use of imported mechanical seals. We usually follow the regulations of the Ministry of Petroleum and Chemical Industry. Some technical requirements for the cooperation between the pump and the mechanical seal of the cartridge mechanical seal are as follows: 1. Shaft curvature: the maximum is no more than 0.05 mm;    2. Rotor oscillation: the vicinity of the shaft sleeve at the moving ring seal is no more than 0.06 mm; 3. The axial movement of the shaft is not allowed to exceed ±0.5 mm. If the cartridge mechanical seal has a shaft sleeve, the shaft sleeve is not allowed to loosen;    4. The alignment error of the coupling: about the gear coupling is not greater than 0.08~0.10mm (P2008C), the elastic coupling is not more than 0.05~0.06mm; (the customary practice end jump<0.05, diameter jump<0.10)    5. The gland (static ring seat) and the seal cooperate with the stop on the shaft center The concentricity tolerance of the line is 0.05 mm, and the straightness value tolerance of the center line of the flat surface touching the gasket is 0.03~0.05 mm. If the requirements are not met, the sealing cavity must be processed;    6. The end of the sleeve and the end of the gland (or housing) of the static ring seal of the device should be chamfered and repaired and lubricated. Keywords: Grundfos mechanical seal, imported mechanical seal, cartridge mechanical seal
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