派克OK型活塞組合密封圈-Parker - OK HYDRAULIC PISTON SEALING SET

Parker - OK DOUBLE-ACTING PISTON SEAL

Piston compact seal (OK), View parker OK seal

The OK profile is a bi-directional piston seal designed for heavy duty hydraulic applications. Its durable, two piece design installs easily onto a solid piston without the necessity of auxiliary tools. When installed into the bore, the diameter of the OK profile is compressed to close the step cut in the cap to provide excellent, drift free sealing performance. The glass filled nylon sealing surface handles the toughest applications. It will resist shock loads, wear, contamination, and will resist extrusion or chipping when passing over cylinder ports. The rectangular NBR elastomer energizer ring ensures resistance to compression set to increase seal life.

Standard Materials:

  Cap

    W4650N MolyGard

  Energizer

    80A NBR

Alternate Materials: For applications that may require an alternate energizer material, please contact your local Parker Seal representative.

Availability: 1.500" to 8” bore diameter

Main advantages:

Small profile.

Resistant against shock loads.

Low break-out and running friction even after extended standstill under high pressures.

Simple installation on solid piston without the necessity of auxiliary tools due to the split design of the cylinder sealing ring.

High abrasion resistance.

High extrusion resistance at high pressures and large gaps due to the special compound pro­perties of the cylinder sealing ring.

Perfect static and dynamic sealing function.

Suitable for housings according to ISO 7425-1.

Range of Application:

Working pressure         max. 500 bar

Working temperature      -30 / +110 °C

Surface speed            max. 1,0 m/s