Additional Products
To round off the Hallite product range the additional products listed here are available for various applications.
For information about other material options available, please contact your local Hallite Seals office.
155Max pressure500 Bar
Temp range0°C
60°C
Design The Hallite 155 U ring is designed as static seal for cylinders. It is used instead of a conventional O ring/back-up ring combination. Through its special design and compound, extrusion gaps up to F = 0.4mm at 500 bar pressure are allowed. Every nominal diameter of the Hallite 155 is suitable for diameter ranges… |
155 |
| Max pressure | 500 Bar |
| Temp range | 0°C to 60°C |
657Max pressure600 Bar
Temp range-45°C
110°C
The Hallite 657 has been designed especially to fit SAE J518 flanges. High pressure and pumping are common problems which prevent reliable sealing in applications where O rings are fitted. Hallite’s 657 overcomes these. Manufactured as standard in Hallite’s high quality Hythane® 181, the material provides excellent extrusion resistance and is able to perform at… |
657 |
| Max pressure | 600 Bar |
| Temp range | -45°C to 110°C |
88Temp range-50°C
200°C
Max speed5m/sec
Design Hallite 88 anti-dieseling rings are fitted to pistons outboard of the main bearings to reduce the possibility of the heat of compression ignition (‘dieseling’) detonations damaging the main bearings or main piston seal. It is recommended that such rings be installed on the pistons in cylinders that are known to be subjected to shock… |
88 |
| Temp range | -50°C to 200°C |
| Max speed | 5m/sec |
Backup RingTemp range-45°C
120°C
DESIGN Hallite backups are manufactured from high quality thermoplastic polyester elastomer (TPE). This tough material is long wearing with very good abrasion resistance in both dynamic and static applications and improved extrusion resistance compared to standard urethane or NBR backups. It has high temperature capabilities up to 275°F (135°C) along with a broad range of… |
Backup Ring |
| Temp range | -45°C to 120°C |
O-ringTemp range-30°C
100°C
Design O-rings are a simple but very versatile seal. They are most commonly used for static applications, and for pressures over 1500 p.s.i are used with back up rings. O-rings with sizes to AS-568A are available in NBR 70 and 90 Shore A compounds and in FKM 75 Shore A. O-rings in NBR and FKM… |
O-ring |
| Temp range | -30°C to 100°C |
OptiSeal®The OptiSeal® system is a high-performance, low-friction, full-spectrum sealing solution. This widely used spring-energized seal offers performance benefits ranging from enhanced media compatibility to superior performance in broad temperature ranges. The basic design consists of a U-shaped jacket made from inert thermoplastic materials specifically selected for the application. The addition of a metal spring actuates… |
OptiSeal® |
PMETemp range-30°C
200°C
Hallite PME back-up rings are uncut back-up rings made from specific conditioned PTFE to be assembled into one-piece external grooves. PME back-up rings are designed to support o-rings mainly in static applications. The cold flow feature of the specially conditioned virgin PTFE grade reliably closes the extrusion gap and protects the o-ring from extruding into… |
PME |
| Temp range | -30°C to 200°C |