Summary of Mechanical Seal Devices and Application Requirements: It is necessary to select suitable types of mechanical seals based on the condition of the host machine to ensure the normal service life of the mechanical seals used in industrial pumps. The mechanical seal should have radial runout of the shaft sleeve. The axial momentum of the 04mm rotor is 0. The mechanical seal of the 1mm device stops and the positioning end face of the sealing shell is straight to the axis. 04mm mechanical seal device is necessary, shaft sleeve seal cavity seal liquid dynamic pressure bearing commonly used shaft shell matching shaft

1) It is necessary to select suitable types of mechanical seals and match them with the data according to the working conditions of the ship's mechanical seals and the condition of the main engine; To ensure the normal operation and service life of the seal

2) The radial runout of the shaft (shaft sleeve) of the mechanical seal part of the device should be ≤ 0. 04mm； The axial displacement of the rotor is ≤ 0. 1mm.

3) The sealing end cover (or housing) of the mechanical seal stop ring of the device; The straightness of the positioning end face to the axis is ≤ 0. 04mm.

4) Mechanical seal in the device; It is necessary to clean the shaft (shaft sleeve), sealing chamber, sealing end cover, and mechanical seal themselves; Avoid any impurities entering the sealed area

5) When the temperature of the transport medium is too high, too low, or rich in impurity particles, flammable, explosive, or toxic; It is necessary to refer to the relevant specifications for mechanical seals; Adopt corresponding measures such as blocking, flushing, cooling, and filtering

6) When using mechanical sealing devices; There should be appropriate smoothness According to the product device manual; Ensure the size of the mechanical seal device

7) It is necessary to fill the equipment with medium before operation; To avoid dry conflicts and seal failure

8) Mechanical seal with single tension spring transmission in the sample; Reasonable selection of tension spring rotation direction should be made; Usually viewed from the end of the stop ring; When the axis is turned clockwise; Right hand tension spring should be selected Otherwise, choose the left tension spring