DESCRIPTION
The PB-27 is a two-piece piston seal molded from 70A nitrile for high sealability and employs a hard polyacetal anti-extrusion ring as a companion piece 
This seal is typically found in Asian manufactured lift truck cylinders. 
 
SEAL INFORMATION
Material Type (Primary Seal): NITRILE  
Material Type (Backup Rings): POLYACETAL  
Durometer (Shore A): 70  
Temperature Range (F): -20 TO 220  
Max Pressure (psi): 4000  
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): MUH-(ID)X(BORE DIAMETER)X(HT)PB-27  
Additional Part Number Definition (Metric): 75 X 100 X 18   =   MUH-75X100X18PB-27