Characteristics and performance

The Hallite 622 is a top-of-the-range twin lip rod seal designed to provide a dry sealing solution in light and medium-duty applications.

The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland. The unique profile of the NBR energizer ensures the precision trimmed primary sealing lips maintain contact under low or no pressure situations while ensuring proper sealing at higher pressures.

This unique profile is also used in the Hallite 621 twin lip rod seal and its seal shell is molded in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance. The Hallite 622 is also offered in other high quality Hythane® materials to match the needs of the application.

Product details

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Product specification
Operating conditions
Fluid compatibility

Metric Inch

Max pressure *

400 Bar

Temp range

-45°C

110°C

Max speed

1m/sec

* Max pressure stated is dependant on the material variant selected. Please consult the datasheet for further information.

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	Recommended
Waterbased fluids
HFA (5/95)	Possible	Possible
HFB (60/40 invert emulsion)	Recommended	Recommended
HFC (water glycol)	Possible	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

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622 – a top-of-the-range twin lip rod seal

The Hallite 622 provides a twin lip alternative to the Hallite 500 Series (Hallite 511, 512, 513), in particular the Hallite 513 rod/piston seal range.