659

- The Hallite 659 single-acting, asymmetrical, double-lip piston seal with precision-trimmed sealing lips provides a dry sealing solution in light- and medium-duty applications. The sealing lips are trimmed at an angle to provide optimum rod sealing performance.
- The Hallite 659 is designed to have an interference fit on the piston pin bore and has a secondary lip. The secondary sealing lip located behind the primary sealing lip improves seal stability on the piston. The outer dynamic lip is shorter and more robust to improve sealing and sealing set characteristics compared to conventional symmetrical U-rings.
- Hallite 659 is molded in Hythane® 181, Hallite's high-performance polyurethane, for easy installation and excellent low-temperature performance. Depending on the tube bore finish, Hallite 659 is also available in Hythane® 361 polyurethane.
- This seal is for use in single acting piston seal applications only.