PDS

The Hallite PDS is a double-acting low-friction piston seal solution for compact o-ring grooves, that extends the service range above what an o-ring alone is capable of supporting. The PDS is designed for light-duty applications, is particularly suited for small-diameter installations, and due to its size and design, is easy to install. High-performance Armorlene® materials, like HLX, provide outstanding wear and extrusion-resistance properties as well as large range of temperature and media compatibility.

Hallite’s PDS is designed to be used in existing dynamic o-ring grooves and does not require any groove modification. A good choice for pneumatic and hydraulic equipment sealing needs, the PDS is proven to extend the service range and seal longevity over stand-alone o-ring installations.

This seal is available in a variety of Hallite’s high-performance Armorlene® materials to suit a wide range of demanding applications.

The part numbers listed below only show standard material options for both the face seal and energizer, where applicable. For a complete list of the material and energizer options along with part numbering structure, please see the complete PDF datasheet or click PDS Data Tables.
  • Unit of measurement:
Unit of measurement:

Max pressure

350 Bar

Temp range

-45°C
200°C

Max speed

15m/sec
Key:
  • Recomended
  • Possible
  • Not Suitable

* For fluid types marked as possible, please call our team of experts on +44 208 941 2244 to talk through your requirements and determine if this seal is the most suitable for your needs.

  Dynamic application Static application
Fluids based on mineral oil    
Any Recommended Possible
Waterbased fluids    
HFA (5/95) Possible Possible
HFB (60/40 invert emulsion) Possible Possible
HFC (water glycol) Possible Possible
Water Possible Possible
Other fluid types    
Air/Nitrogen Possible Not suitable
HFD (Phosphate ester ARYL Type) Not suitable Not suitable
Synthetic esters (HEES, HFDU) Recommended Possible