Parker Piston Seals PZ

The PZ pneumatic piston seal has been developed for use in pneumatic cylinders and in valves. The double-acting piston seal requires only very small housing dimensions and is therefore especially suitable for compact cylinders.

  • Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
  • Good sealing performance in extremely small assembly conditions.
  • It can also be used for single-acting applications.
  • Good wear resistance.
  • Low static and dynamic friction thanks to the miniaturized design.
  • Smooth running due to the optimum lubricant-retaining sealing lip geometry.
  • Suitable for fully automatic installation.
  • Assembly on the one-part piston is possible.
  • High-temperature resistance in case of suitable compound selection.
  • Excellent media resistance in case of suitable compound selection.
  • Short axial assembly length.
  • Installation in closed housings.

Range of application

Operating pressure ≤ 12 bar
Operating temperature -20 °C to +80 °C
Sliding speed ≤ 1 m/s
Media Compressed air, both lubricated and oil-free (after greasing for fitting)

 Compounds

Standard: N3571, NBR compound (≈ 70 Shore A).

For low temperatures: N8602, NBR compound (≈ 70 Shore A). For high temperatures: V3681, FKM compound (≈ 80 Shore A).

Installation

The profile PZ pneumatic piston seals can be easily mounted into the grooves by simply pulling them over the piston.

To avoid damaging the seal, sharp edges should be removed from the piston and the cylinder tube.

For oil-free conditions, it is important to obtain a full lubrication film inside the cylinder tube prior to assembly to ensure the long service life of the seal.

For piston guidance, we recommend our profile F2 piston guidance tape. For dimensions of pistons and clearances, please refer to our profile F2.

D d H L Order code
10 6,5 1,4 1,8 PZ1006N3571
12 7 2 2,5 PZ1207N3571
16 9 2,1 2,5 PZ1605N3571
20 13 2,1 2,5 PZ2013N3571
25 18 2,1 2,5 PZ2518N3571
28 19 2,5 3 PZ2819N3571
30 21 2,5 3 PZ3021N3571
32 23 2,5 3 PZ3210N3571
35 26 2,5 3 PZ3520N3571
40 31 2,5 3 PZ4031N3571
45 36 2,5 3 PZ4520N3571
50 41 2,5 3 PZ5010N3571
63 51 3,4 4 PZ6051N3571
80 68 3,4 4 PZ8010N3571
100 88 3,4 4 PZA008N3571
125 110 4,4 5 PZC050N3571

Brand

Parker