English to Russian Tech/Engineering Engineering: Industrial

Seals
The Mono Gear Pump utilizes 2 lip seals per shaft per side (8 in total): one a high pressure seal, exposed to the pumpage, one a low pressure (back-up) seal separated from the high pressure seal by a grease-filled cavity.

When re-installing or replacing these seals, it is very important that they have the correct orientation to ensure the inner (high pressure) seal holds against pump pressure, and the outer (low pressure) seal will give way if there is a build-up of pressure in the cavity due to an excess of grease being pumped in.