621

- Hallite 621 is a high-end double lip rod seal designed to provide a dry sealing solution in heavy-duty applications.
- The secondary sealing lip located behind the primary sealing lip improves seal stability in the bushing. The unique profile of the NBR energizer ensures that the precision trimmed primary sealing lips maintain contact in low or no pressure situations, while ensuring adequate sealing at higher pressures. This unique profile is also used in the Hallite 622 double-lip rod seal. The Hallite 621 also incorporates an acetal anti-extrusion ring to withstand extreme side loads and pressure peaks even with extrusion gaps, which result from the use of remote plastic support strips such as the Hallite 506 or 708.
- The Hallite 621 seal housing is molded in Hythane® 181, Hallite's high-performance polyurethane, for easy installation and excellent low-temperature performance.