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 +91 80 2372 6000 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