PISTON SEAL PSQ

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