Characteristics and performance
The Hallite 511 is a standard profile loaded U-cup with precision trimmed sealing lips manufactured in either a polyurethane or polyester shell energised by a high quality O-ring and designed for common North American square grooves.
At zero or low pressure, the O-ring helps to increase the sealing force preventing any bypass. Under most conditions as the pressure rises, the sealing force increases and the O-ring ensures complete lip actuation.
The symmetry of the Hallite 511 makes it ideally suited for single-acting rod and piston applications and its flexibility enables easy installation. The 511 can also be fitted back-to-back for use in double-acting applications. Although the Hallite 511 can be used as a rod seal, other Hallite non-square rod seals are more suitable options, such as the Hallite 513, 605, or 621.
Product details
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Max pressure *
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 +39 (0)58 642 8287 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 | Recommended |
| Waterbased fluids | ||
| HFA (5/95) | Possible | Possible |
| HFB (60/40 invert emulsion) | Recommended | Recommended |
| HFC (water glycol) | Not suitable | Not suitable |
| Water | Possible | Possible |
| Other fluid types | ||
| Air/Nitrogen | Possible | Possible |
| HFD (Phosphate ester ARYL Type) | Not suitable | Not suitable |
| Synthetic esters (HEES, HFDU) | Recommended | Possible |
