Heavy-duty solution for low and medium pressures operations are widely used in the chemical industry and waterworks.

The US4A is the shorter version of US3A, single component seal with a type A pinned stationary seat and it.
Allows rotation in two directions.
Because of the three drive lugs on the rotating body, they can tolerate high levels of vibration and mechanical stress.
The O-ring is easily removed and refitted when assembling the seal on shafts with keyways, threads, or sharp edges.
The US4A version is supplied with a single spring and is more suitable for moderately dirty liquids.

PRODUCT SHEET