Parker Prädifa Piston Sealing Set ZY

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Field of application:

Working pressure: ≤2000 bar
Working temperature: HFA-, HFB and HFC-fluids: + 5 to + 60 °C Mineral oil:  —20 to +100 °C

Surface speed: ≤0,1 m/s

Mainly used for double-acting pistons in cylinders for hydraulic roof supports and for tunneling machines.

Installation:

The Parker Prädifa sealing sets “of the series ZY may be installed on one-piece pistons. To avoid damaging care should be taken that the seals are not pulled over sharp edges during installation.

The installation chamfer must be dimensioned sufficiently. If necessary, special assembly tools may be useful.

 

Compounds:

The standard compound for the Parker Praedifa sealing part is an NBR-based elastomer
(Z5017) with a fabric-reinforced dynamic surface (SFR® -compound).
The back-up rings are made of a polyacetal-based material (W5001).

For special requirements (pressure, temperature, speed, etc.)
please contact our Consultancy Service, so that suitable
materials and/or designs can be recommended.

 

Cylinder Version up to 500 bar Version up to 2000 bar
D d L D1 Item number L D1 Item number
110 95 18 109,2 ZY 0110 00256 23 109,2 ZY 0110 00448
120 105 18 119,2 ZY 0120 00256 23 119,2 ZY 0120 00448
130 115 18 129,2 ZY 0130 00256 23 129,2 ZY  0130 00448
140 125 18 139,2 ZY 0140 00256 23 139,2 ZY 0140 00448
150 133 20 149,2 ZY 0150 00256 25 149,2 ZY  0150 00448
180 163 20 179,2 ZY 0180 00256 25 179,2 ZY 0180 00448
200 175 25 199,2 ZY 0200 00256 30 199,2 ZY 0200 00448
245 220 25 244,2 ZY 0245 00256

Merk

Parker

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