English to Serbian Tech/Engineering Mechanics / Mech Engineering

I dalje je reč o pumpama. Evo konteksta:

Cartridge shaft seal
This seal type featuring a rigid torque transmission system is assembled in a cartridge unit which makes replacement safe and easy. The balancing makes this O-ring seal type suitable for highpressure applications. The cartridge construction also protects the pump shaft from possible wear from a dynamic O-ring between pump shaft and shaft seal.