EXG

The Hallite EXG is a double-acting, two o-ring energized, rod wiper/excluder designed to include two different unique wiping lip geometries. The EXG wiper is primarily designed for environments with heavy contamination, particularly when the rod is facing upwards. The two wiping lips combine to scrape debris from the rod and contain residual oil on rod extension. Hallite’s innovative Umbrella® wiper technology is designed to eliminate debris buildup from in front of the primary wiping lip by forcing it to flow to the outer diameter of the cylinder away from the rod. The EXG design requires two o-ring energizers; one o-ring energizer provides downward force to maintain the engagement of the inner wiping lip, while the other o-ring provides the necessary force and static sealing of the primary wiping lip area to the sliding surface.

Typically made from exclusive Hallite Armorlene® materials, this seal is capable of highspeed applications and eliminates any potential for stick-slip. High-performance Armorlene® materials, like HLX, provide outstanding wear and scraping capability as well as large range of temperature and media compatibility. The Halite EXG wiper employs the same basic principles of design function as the Hallite E2W, E5W, and EXF, though the EXG wiper may require a gland drain to properly relieve pressure between the wiper and rod seal.

The part numbers listed below only show standard material options for both the face seal and energizer, where applicable. For a complete list of the material and energizer options along with part numbering structure, please see the complete PDF datasheet or click EXG Data Tables.
  • Unit of measurement:
Unit of measurement:

Temp range

-45°C
200°C

Max speed

5m/sec
Key:
  • 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 Recommended Possible
Waterbased fluids    
HFA (5/95) Possible Possible
HFB (60/40 invert emulsion) Possible Possible
HFC (water glycol) Recommended Possible
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