1, the installation Precautions
1) Check carefully before installing build adequate number of sealing parts, all components for damage, especially in dynamic and static rings with or without bumps, cracks and deformation defects. If you have questions, need to repair or replace parts.
2) Check the sleeve or gland of the chamfer is appropriate, if not meet the requirements must be repaired.
3) mechanical seal assembly of various components of the contact surface, prior to installation with acetone or ethanol must be clean. Installation process should be kept clean, especially in dynamic and static sealing ring and auxiliary components should be no dirt, dust. Dynamic and static rings coated with clean oil or turbine oil.
4) on the lid should be pressed after the coupling alignment. Bolts should be tightened evenly to prevent the gland section skewed, with a feeler or a special tool to check points, the error is not greater than 0.05 mm.
5) Check the gland and the shaft or sleeve diameter with the gap (and concentricity), to ensure uniform around, check all the points with a feeler tolerance is not greater than 0.10 mm.
6) The amount of compression in accordance with the provisions of the spring, had allowed the phenomenon of large or too small to require error ± 2.00 mm in cross section than through the General Assembly to increase pressure and accelerate wear section. Too small will cause less than the pressure seal and can not play a role in the spring after spring loaded seat flexibility to move within. Single spring should pay attention to the spring rotation, the spring should be the axis of rotation to the rotation in the opposite direction.
7) ring to maintain a flexible and mobile installation, will ring after the spring pressure should be able to automatically bounce back.
8) The first trap in the static stationary ring seal ring back, then within a sealed cover. To protect static ring cross section, cross section and end caps to ensure static ring vertical center line width, and will back the anti-static ring grooved aligned against resale, but must not allow contact between them.
9) the installation process must not be allowed to use tool to directly tap seals, need to hit, you must use special tools to beat, to prevent damage to seal components.
2, Installation
Installation method with the mechanical seal type, different types of machines vary, but the installation of almost all essentials the same installation steps and precautions are as follows:
(1) determine the size of installation
Installation, should be the product manual or the sample size to ensure the installation of mechanical seals.
(2) pre-loaded shaft (sleeve), gland should be no burr, bearing in good condition; seals, shaft seal cavity, gland should be cleaned. To reduce friction, the shaft to install the mechanical seal area to be coated with a thin oil for lubrication, taking into account the rubber O-ring compatibility, if not oil, can be coated soapy water. Float-mounted anti-static ring resale without the structure, not oiled, should be dry mounted gland.
(3) with the first stationary ring and disc mounted on the shaft, careful not to collide with the axis, and then ring components into. Block Spring Block or drive several times set screws should be tightened evenly.
Fixed gland without prior compensation he pushed the ring for axial compression, release the ring after the compensation automatically bounced back cable wiring, and then evenly tighten gland bolts.
Also note:
Static ring seals are not more compact the better. Basic static ring seals at rest, relatively close sealing effect would have been better, but too tight is harmful. The first is caused by excessive deformation due to static seal ring, seal effect; second static ring material to graphite majority, are generally more brittle, the force can easily cause excessive fragmentation; third is to install, difficult to remove, easy to damage the stationary ring.