Characteristics and performance

The Hallite 155 U-ring static seal replaces the conventional O-ring and back-up ring comb and is designed to seal the joint between the gland and the cylinder bore. Through its special design and polyester material compound, the seal will work with a maximum extrusion gap of 0.40 mm at 500 bar pressure.

This seal was developed for water-based, HFA, applications, but can also be used with standard mineral oil fluids.

Product details

Every nominal diameter of the Hallite 155 is suitable for a range of bore diameters, ØD₁.

See part number range for details.

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Max pressure

500 Bar

Temp range

0°C
60°C
Key:
  • 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  
AnyNot suitableRecommended
Waterbased fluids  
HFA (5/95)Not suitableRecommended
HFB (60/40 invert emulsion)Not suitableRecommended
HFC (water glycol)Not suitableNot suitable
WaterNot suitableRecommended
Other fluid types  
Air/NitrogenNot suitablePossible
HFD (Phosphate ester ARYL Type)Not suitableNot suitable
Synthetic esters (HEES, HFDU)Not suitablePossible