Characteristics and performance

The Hallite GP2 is a double-acting piston seal utilizing Hallite’s proprietary high- performance Armorlene® HLX PTFE paired with twin premium o-ring energizers and an x-ring for optimum performance and durability. The Armorlene® PTFE seal ring and the x-ring together provides the dynamic sealing function, while the o-ring energizers provide the static sealing.

Hallite’s GP2 seals are especially effective in applications where two different types of media need to be separated such as in piston accumulators, intensifiers, and position-holding applications. This makes this seal a good choice for applications in stabilizers, accumulators, manlifts, industrial machinery, and hydraulic suspension.

Product details

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 GP2 Data Tables.
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Max pressure *

600 Bar

Temp range


Max speed


* Max pressure stated is dependant on the material variant selected. Please consult the datasheet for further information.

  • Recomended
  • Possible
  • Not suitable

* For fluid types marked as possible, please call our team of experts on +49 (0)40 73 47 48-0 to talk through your requirements and determine if this seal is the most suitable for your needs.

 Dynamic applicationStatic application
Fluids based on mineral oil  
Waterbased fluids  
HFA (5/95)PossibleRecommended
HFB (60/40 invert emulsion)PossibleRecommended
HFC (water glycol)RecommendedRecommended
Other fluid types  
HFD (Phosphate ester ARYL Type)Not suitableNot suitable
Synthetic esters (HEES, HFDU)RecommendedRecommended