1, the mechanical seal on the machine precision requirements: (to vacuum pump mechanical seal for example)

 (1) Installation of mechanical seal parts of the shaft (or sleeve) does not exceed the maximum radial tolerance of 0.04 ~ 0.06mm.

 (2) axial movement of the rotor does not exceed 0.3mm.

 (3) sealed chamber and the positioning of sealing cover end with the face of the shaft (or sleeve) beating the surface of the maximum tolerance of not more than 0.04 ~ 0.06mm.

 2, seals confirmation:

 (1) to confirm whether the installation of the seal model consistent with the requirements.

 (2) carefully before installation and assembly chart control, the number of parts are complete.

 (3) the adoption and transmission of mechanical seal ring spring, the spring has left and right of the points, shall always choose the rotation axis.

 3, the seal of the installation method:

 Installation method with the mechanical seal type, the different types of machines vary, but the installation is almost the same essentials, installation procedures and precautions are as follows:

 (1) Size determination of installation: installation, should be the product manual or the sample size to ensure that the installation of mechanical seals.

 (2) before loading the shaft (sleeve), the gland should be no burr, bearing in good condition; seals, shaft, sealed chamber, the gland should be cleaned. To reduce friction, the shaft is the site to install the mechanical seal coated with a thin layer of oil for lubrication, taking into account the rubber O-ring compatibility, if not oil, can be coated with soapy water. Float-mounted anti-static ring without the structure of reseller, not oiled, into the gland to be dry.

 (3) with the first stationary ring and the gland mounted on the shaft, careful not to collide with the shaft, and then into the ring component. Block Spring Block or drive several times set screws should be tightened evenly.

 Gland without fixed before hand ring push compensation for axial compression, release the ring after the compensation can be automatically bounced back and cable wiring, and then tighten the gland bolts evenly