Parker Piston Seals Z8 TPU

The Z8 cylinder seal is a single-acting U-ring for pistons in pneumatic cylinders and valves. It is characterized by small axially installed dimensions. The standard range of the Z8 product series conforms to the cylinder diameters acc. to ISO 3320 and CETOP RP 52 P, RP 43 P, and RP 53 P.

The Z8 product series is available in both Ultrathan® and rubber compounds. The Ultrathan® versions are characterized by extremely high resistance against wear and pressure peaks.

  • 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.
  • Extreme wear resistance.
  • Low static and dynamic friction thanks to the miniaturized design.
  • Smooth running due to the optimum lubricant-retaining sealing lip geometry.
  • Easier installation.
  • Excellent media resistance in case of suitable compound selection.
  • Installation in closed and undercut housings.
  • Low compression set.

Range of application

Operating pressure ≤ 16 bar
Operating temperature -35 °C to +80 °C
Sliding speed ≤ 1 m/s
Media Compressed air, both lubricated and oil-free (after greasing for fitting)

Compounds

Standard: P5007, Ultrathan® (TPU) compound (≈ 82 Shore A).

For low temperatures: P5075, Ultrathan® (TPU) compound (≈ 80 Shore A).

Installation

Profile Z8 piston seals can be easily mounted into the grooves by simply pulling them over the piston. To avoid damaging the seal’s sharp edges should be removed from the piston and the cylinder tube.

For oil-free operating conditions, it is important to obtain a full lubrication film inside the cylinder tube before 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
8 4 2,55 3 Z80804P5007
8 4,8 2,55 3 Z80807P5007
10 6 2,55 3 Z81006P5007
12 7 2,55 3 Z81207P5007
12,6 7,5 2,55 3 Z81260P5007
16 10 2,55 3 Z81610P5007
20 14 2,55 3 Z82014P5007
25 19 3,25 3,5 Z82519P5007
25 19 4 4,5 Z82520P5007
28 22 3,25 3,5 Z82822P5007
30 21 2,75 3,2 Z83021P5007
32 24 3,25 3,5 Z83224P5007
40 32 3,25 3,5 Z84032P5007
50 42 3,25 3,5 Z85042P5007
63 53 4,25 4,5 Z86353P5007
80 70 4,25 4,5 Z88070P5007
100 90 4,25 4,5 Z8A090P5007
125 105 8,25 8,5 Z8C505P5007
160 140 8,25 8,5 Z8G014P5007
200 180 8,25 8,5 Z8L018P5007

Brand

Parker