S 660
The S 660 single-acting rod buffer seal is designed to be used in conjunction with high-performance rod seal, such as the S 605, S 663 or S 673, to protect the primary seal from shock pressure loading and high frequency pressure spikes in the hydraulic system. The design allows oil to pass through to the rod seal while holding back pressure spikes and also allows pressure to pass back into the system preventing a pressure trap between the rod seal and the buffer seal.
The S660 is moulded in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance. The design also incorporates a polyacetal anti-extrusion ring to provide maximum extrusion resistance against shock pressure loads.
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