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.
Ask an expert
Max pressure *
Temp range
* 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 +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 | Not suitable | Recommended |
| Waterbased fluids | ||
| HFA (5/95) | Not suitable | Recommended |
| HFB (60/40 invert emulsion) | Not suitable | Recommended |
| HFC (water glycol) | Not suitable | Not suitable |
| Water | Not suitable | Recommended |
| Other fluid types | ||
| Air/Nitrogen | Not suitable | Possible |
| HFD (Phosphate ester ARYL Type) | Not suitable | Not suitable |
| Synthetic esters (HEES, HFDU) | Not suitable | Possible |
