When the mechanical seal installation should strictly according to JB the installation requirements stipulated in the 4127-85, in addition, there are the following considerations:
1. The installation of mechanical seals assembly to clean, bright and clean.Associated mechanical seal parts, machinery parts, tools, apparatus, lubricating oil (grease), wiping materials (cotton, white cloth, silk, etc.) to be very clean.Dynamic and static ring seals to white or soft wiping cloth.
2.  When installing mechanical seal repair chamfering round, shaft, sealing end cover chamfer to finish is smooth, shaft and the end cover of the rounded corners to sanding polishing.
3.  Installation, mechanical seal, must in the ring and static ring (especially on the sealed end blood), auxiliary sealing ring, shaft and end cover on turbine oil or oil l0, reduce friction, so as not to damage the static ring seals and auxiliary seal ring.
4.  The assembly auxiliary seal ring
1)  Rubber soaking auxiliary seal ring can't use gasoline, kerosene catharsis, in order to avoid swelling deformation, premature aging.
2)  O ring is installed on the ring components or static ring components, smoothly, don't let the distortion, the burrs are in a state of freedom of the cross section.To flash a little bulky O ring, if the flash of a period of 45 DHS, fair to use.But flash position should be paid attention to and promote component, on one side of the O ring and the seal (gland or sealed chamber), relative sliding, side edges should be in the rear of the sliding direction, otherwise, the flash turned up and in the sealing position, affect the sealing effect.
3)  Propulsion components, to prevent the o-type sealing ring damage.Main damage form are falling, fissure, bruised, edge and distortion.
5.  According to the technical requirements to adjust the machine seal compression, its value reference product manuals.Otherwise, the compression amount is too large, increased the end face specific pressure, accelerate the end wear;Is too small to move, the ring end face pressure, seal failure.
6.  The press should be used or drilling machine put the static ring components into gland (or sealed chamber).Shall not under any circumstances would impose the impact mechanical seal parts or components.By pressure surface should be clean paper or cloth pad, so as not to damage sealing side.
7.  Assembled into dynamic or static ring components, with the hand press compensation loop, check whether installed in place, whether or not flexible;Elastic split ring (some of the structure of the mechanical seal, the elastic ring for compensation ring axial positioning) whether positioning and reliable.
8 . Check the sealing end and shaft centerline of vertical degree is in line with the requirements.
9.  And static ring components of stop pin lead to accurate, promote the static ring components, components of the pin groove to alignment pins, advance in place, to measure a server-side components to seal cavity distance, determine whether to install in place.
10. Screw bolt clamping end cover, to forcibly even, symmetry, careful, points several times to finish, not set at a time, in order to avoid deviation even crush static ring.
11. Ring after installation, must guarantee that it on the shaft axial moving flexible (with a ring spring, and then are free to bounce back).