What are the requirements for installing the mechanical oil seal of a transfer pump?

Please clarify whether it is a mechanical seal or a mechanical oil seal. Mechanical oil seals are rarely heard of; you must be mistaken. Please correct this

What was said upstairs is correct; if it’s an oil seal, installation should be done to prevent the entry of contaminants. It’s best to apply some of the seal’s own lubricant before installation, and it’s important to ensure that the surface on which it’s installed is level and perpendicular. A soft hammer should be used for tapping, and the tapping should be done symmetrically. After installation, use a depth gauge to check whether the thickness is uniform at all four points. In the case of mechanical seals, it is not allowed to have any contamination on the sealing surface during installation. A small amount of the medium being transported can be applied to the O-rings of the rotating and stationary rings. The rotating ring must be installed all the way down until it is in close contact with the shaft shoulder, and the locking bolts should be tightened evenly; excessive force should be avoided to prevent damage to the surfaces. When installing a static seal, it is necessary to check that the dimensions at four or more points are consistent. Hitting the seal with metal tools is not allowed; static pressure assembly is recommended. A sponge or cardboard pad specific for sealing should be placed on the sealing surface. After installation, the two sealing surfaces should be cleaned with soft, clean paper towels. The two sealing surfaces should be closed slowly and gently to avoid impact.

Sorry, I was referring to mechanical seals.

When installing a mechanical seal, attention must be paid to the cleanliness of the sealing surfaces, ensuring that the O-rings are not damaged. The perpendicularity of the end faces to the shaft, as well as the levelness of those end faces, are also important factors. Most importantly, the compression amount needs to be taken into account; it should be adjusted based on the pressure of the medium or according to the values calculated by the seal manufacturer.

Mechanical oil seals are available; they are used in ordinary vertical high-speed pumps! Its structure is similar to that of the mechanical seal in high-speed pumps, featuring a stationary ring, a rotating ring, and a spring compensation mechanism