DESCRIPTION
The PSQ profile is a bi-directional piston seal for use in medium to heavy duty applications. This seal has outstanding sliding properties with no stick-slip effect. The PSQ is a unique seal design that includes a rubber quad seal in the PTFE cap to ensure drift free performance. The PTFE cap is a stable rectangular shape and is energized by a single square energizer.
The PSQ piston seal is commonly used in applications such as mobile hydraulics, lift trucks, standard cylinders and piston accumulators.
SEAL INFORMATION
Material Type (Primary Seal): 40% BRONZE-FILLED PTFE
Material Type (Energizer): 70A NITRILE
Durometer (Shore D): 63
Temperature Range (F): -30 TO 212
Extrusion Gap at Various Pressures (in):
- 1,500 PSI: 0.012
- 3,000 PSI: 0.008
- 5,800 PSI: 0.006
Max Speed (ft/sec): 6.5
Mating Surface Roughness - Ra (µin) - DYNAMIC: 12 MAX
Mating Surface Roughness - Ra (µin) - STATIC: 32 MAX
Part Number Definition (Inch): PSQ-(BORE DIAMETER X 16)
IMPORTANT NOTE: THE ABOVE MAXIMUM VALUES FOR TEMPERATURE, PRESSURE AND SPEED CANNOT BE USED AT THE SAME TIME. E.G. THE MAXIMUM OPERATING SPEED DEPENDS ON MATERIAL TYPE, PRESSURE, TEMPERATURE AND GAP VALUE. TEMPERATURE RANGE ALSO DEPENDENT ON MEDIA.