Characteristics and performance
The Hallite PFR is a chamfered, double-acting piston seal that performs well in both high- and low-pressure systems. The PFR has chamfers on the primary sealing face paired with either a square or an o-ring elastomer energizer. Typically, the square energizer is preferred for heavy-duty applications, as it provides superior interference and stability in the groove. High-performance Armorlene® materials, like HLX, provide outstanding wear and extrusion-resistance properties as well as large range of temperature and media compatibility.
Hallite recommends proper guidance (see Hallite Bearings section) be used with this seal in heavy-duty applications.
Product details
This seal is designed to fit the ANSI B93.32-1973 and NFPA T3.19.18 housing size.
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 +1 248-668-5200 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 | Possible |
Waterbased fluids | ||
HFA (5/95) | Possible | Possible |
HFB (60/40 invert emulsion) | Possible | Possible |
HFC (water glycol) | Possible | Possible |
Water | Possible | Possible |
Other fluid types | ||
Air/Nitrogen | Possible | Not suitable |
HFD (Phosphate ester ARYL Type) | Not suitable | Not suitable |
Synthetic esters (HEES, HFDU) | Recommended | Possible |