Characteristics and performance
The Hallite 714 double-acting piston seal is a compact seal for medium to heavy-duty applications.
In double-acting telescopic cylinders or phasing cylinders, the seal’s reinforced, heat-stabilized, thermoplastic sealing face with step-cut joint is an ideal choice because it allows the seal to pass over ports without damage. The rugged, extrusion resistant design also performs extremely well in high-pressure off-highway and earth-moving applications where the seal face can tolerate the large extrusion gaps which are required to prevent piston-to-bore contact.
The abrasion resistant glass-filled nylon (GFN) face seal material allows the seal to work well on super smooth inside diameter (SSID) as drawn tube. The precision moulded face has chamfers which coupled with a profiled NBR expander allows for easier cylinder assembly.
Product details
The expander material comes in a number of material options to extend operating conditions. Contact your local Hallite technical team to decide which is best for your application.
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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 +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 application | Static application | |
|---|---|---|
| Fluids based on mineral oil | ||
| Any | Recommended | Not suitable |
| Waterbased fluids | ||
| HFA (5/95) | Not suitable | Not suitable |
| HFB (60/40 invert emulsion) | Not suitable | Not suitable |
| HFC (water glycol) | Not suitable | Not suitable |
| Water | Not suitable | Not suitable |
| Other fluid types | ||
| Air/Nitrogen | Not suitable | Not suitable |
| HFD (Phosphate ester ARYL Type) | Not suitable | Not suitable |
| Synthetic esters (HEES, HFDU) | Recommended | Not suitable |
