Precautions for the installation of mechanical seals

Precautions for the installation of mechanical seals Mechanical seals play an important role in the performance of Grundfos mechanical seals. When installing mechanical seals, failing to pay attention to the relevant details required will cause damage to the seals. It will bring a lot of harm to machinery and equipment, so we must pay attention to the following three things when installing mechanical seals. (1) Determination of the installation size When installing, the mechanical seal book or sample should be imported according to the product's instructions to ensure the installation size of the mechanical seal. (2) Before installation, the shaft (sleeve) and gland should be free of burrs, and the bearing should be in good condition; the seals, shaft, seal cavity, and gland should all be cleaned. In order to reduce the friction resistance, the part where the mechanical seal is installed on the shaft should be coated with a thin layer of oil for lubrication. Taking into account the compatibility of the rubber O-ring in the cartridge mechanical seal, if it is not suitable to use oil, soapy water can be used. Floating static ring has no anti-rotation pin structure, so it is not suitable to be oiled and should be dry installed in the gland. (3) Install the static ring and gland on the shaft first, taking care not to collide with the shaft, and then install the moving ring assembly. The set screws of the spring seat or transmission seat should be tightened evenly in several times. Before fixing the gland, push the compensation ring by hand for axial compression. After loosening the compensation ring, the compensation ring can automatically rebound without jamming, and then the gland bolts are evenly locked. Keywords: Grundfos mechanical seal, imported mechanical seal, cartridge mechanical seal