DESCRIPTION
The MNBR profile is a compact rod seal designed to act as a buffer seal for the primary rod seal. Molded in PTFE with a rubber energizer and nylon anti-extrusion ring, this seal absorbs the shock of pressure spikes to protect the primary rod seal. As a buffer seal, the MNBR profile provides a majority of the rod sealing performance while allowing fluid to bypass onto and energize the primary rod seal. Fluid located between the MNBR profile and the rod seal will relieve back into the cylinder upon rod retraction to prevent .
SEAL INFORMATION
Material Type (Primary Seal): 15% GLASS/MOLY-FILLED PTFE
Material Type (Energizer): 70A NITRILE
Material Type (Backup Rings): NYLON
Durometer (Shore D): 67
Temperature Range (F): -40 TO 220
Max Pressure (psi): 5000
Extrusion Gap at Various Pressures (mm):
- 1,000 PSI: 1.00
- 3,000 PSI: 0.65
- 5,000 PSI: 0.50
Max Speed (ft/sec): 3.0
Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4
Mating Surface Roughness - Ra (µm) - STATIC: 0.8 MAX
Part Number Definition (Metric): MNBR-(ROD DIAMETER)X(OD)X(SEAL HEIGHT)
Additional Part Number Definition (Metric): 70 X 85.5 X 5.9 = MNBR-70X85.5X5.9