Merkel Pneumatic Rod Seals

The AIRZET PR is a double-sided, pressure-resistant compact seal with grooves to the front face for pressure activation. The compact configuration allows short cylinder cover design constructions (e.g. short-stroke cylinders; and also in the valves sector). The rounded sealing profile and the flexible middle part give a good seal with low friction and maintain an effective lubricating film.

This is a symmetric compact sealing ring made from TPU and is particularly used for static sealing of cylinder heads with end position damping. Cover seals PU 82 is distorted through forming and essentially less by the operating pressure and bridge issues through high tensile strength of the material gaps which develop from the elastic stretching of cylinder barrels. PU 82 has proved itself mostly in engineering machinery cylinders with pressure peaks of up to 600 bar in end position damping.

These symmetric compact sealing rings are made from TPU and are particularly used for static sealing of cylinder heads with end position damping. The cover seal PU 83 is distorted through forming and essentially less by the operating pressure, and bridges issues through high tensile strength of the material gaps which develop from the elastic stretching of cylinder barrels. PU 83 has proved itself mostly in engineering machinery cylinders with pressure peaks of up to 600 bar in end position damping.