DESCRIPTION
The MPSA-PDE piston seal has been designed to meet the needs of hydraulic equipment operating at high pressures and subjected to severe loading and vibration conditions.
The main sealing element is manufactured in a highly compression set resistant nitrile. The most important quality of this element is the design of the multiple sealing lips for maximum sealing efficiency and end face configuration, which ensures that the MPSA-PDE can tolerate vibrations and severe misalignment.
The two support rings are made in cotton fabric reinforced nitrile elastomer. They have a “U” shape which is energized when pressure is applied.
The last elements are the two L-shaped guide rings manufactured in polyacetal resin which also function as anti-extrusion rings.
SEAL INFORMATION
Material Type (Primary Seal): NITRILE
Material Type (Support Rings): FABRIC-REINFORCED NITRILE
Material Type (Bearings): POLYACETAL
Durometer (Shore A): 80
Temperature Range (F): -22 TO 230
Max Pressure (psi): 10100
Max Speed (ft/sec): 1.5
Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4
Mating Surface Roughness - Ra (µm) - STATIC: 1.6 MAX
Part Number Definition (Metric): MPSA-(BORE DIAMETER)-PDE
Additional Part Number Definition (Metric): 100MM BORE = MPSA-100-PDE