780

- The Hallite 780 double-acting piston seal in a robust five-piece assembly is designed specifically for single-piece pistons in a wide range of medium-duty applications. The seal is also suitable for two-piece pistons.
- The Hallite 780 consists of a nitrile rubber sealing element, two split support rings and two split L-shaped bearings located on either side of the seal. The proven nitrile rubber sealing element is designed to be extremely wear resistant with multiple lips for efficient dynamic sealing with minimal low pressure friction and, when pressurized, will be protected against extrusion damage by the extendable lips of the support rings.
- The support ring is manufactured from a tough, flexible and wear-resistant thermoplastic polyester elastomer (TPE) with a beveled cut for mounting.
- Both the L-shaped bearings and support rings are grooved to ensure that fluid pressure properly energizes the sealing element and to prevent the possibility of pressure being trapped within the seal assembly.