Hallite 660

ROD BUFFER SEAL Polyurethane with AE Ring

DESIGN

The Hallite 660 single-acting rod buffer seal is designed to be used in conjunction
with high-performance rod seal, such as the Hallite 605, 663, or 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. The Hallite 660 design also allows pressure to pass
back into the system preventing a pressure trap between the rod seal and the buffer
seal. The Hallite 660 is an excellent pressure buffer option in heavy-duty applications
and offers extended sealing system life and performance.
The Hallite 660 is also interchangeable with common PTFE buffer seal housings.
The Hallite 660 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.

FEATURES

• Self-energised by pressure spikes to protect primary seal
• Prevents inter-seal pressure build up
• Interchangeable with common PTFE buffer seal housings
• Excellent temperature range
• Long seal life
• Easy to install