BRU - Rod Buffer Seal
MFP Seals’ BRU is a compact, dual-purpose seal. Designed to be both a rod and buffer seal. The BRU handles most of the rod sealing load while special relief vents, designed into the seal, eliminate pressure traps between the BRU and primary rod seal. This allows fluid to bypass the BRU, energizing the primary rod seal. Working in tandem, the BRU and primary rod seal provide unparalleled performance in extreme applications.
Available in both Inch (BRU) and Metric (MBRU) sizes, this seal is available in U2150, U2151, and U4150 Urethane compounds. This seal offers extremely low compression set and excellent extrusion resistance. Working together with the primary rod seal, the rod buffer enhances performance in extreme applications. *The addition of an M1001 Anti-Extrusion Ring will significantly increase the seal’s extrusion resistance and pressure rating.