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Mechanical Seal Installation And Use Requirements
May 18, 2018

1) The matching of mechanical seals and materials must be selected according to the working conditions and the conditions of the main machine to ensure the normal operation and service life of the machine seal.


2) The radial run-out tolerance of the shaft (sleeve) where the mechanical seal is installed shall be ≤ 0.04mm, and the axial turbulence of the rotor shall be ≤ 0.1mm.


3) Install the sealed end cap (or housing) of the mechanical seal stationary ring, and the perpendicularity of the positioning end facing the shaft is ≤ 0.04mm.


4) When the mechanical seal is installed, the shaft (sleeve), seal chamber, seal end cap and mechanical seal must be cleaned to prevent any impurities from entering the seal.


5) When the temperature of the medium is too high, too low, or contains foreign particles, flammable, explosive, and toxic, it must refer to the relevant standards of mechanical seals, and take corresponding measures such as sealing, washing, cooling, and filtering.


6) The mechanical seal should be properly lubricated when installed. According to the product installation instructions, ensure the installation size of the mechanical seal.


7) The equipment must be filled with media prior to operation to prevent dry friction and seal failure.


8) In the sample, the single-spring-driven mechanical seal should reasonably select the direction of the spring rotation. Generally, when viewed from the stationary ring end, when the shaft is steered clockwise, the right-handed spring should be selected. Otherwise choose the left spring.