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PSU Piston Seal Assemblies

Our Style PSU piston seal, or uniring, is a laminated one piece double acting seal made of cast polyurethane. The tough outer layer is highly resistant to abrasion and is impregnated with molybdenum disulfide to reduce friction. The softer inner layer acts as a static seal and also energizes the OD to make full contact with the bore. This seal may be used to replace an existing Uniring or other seals of the same dimensions - O-rings, O-rings with back-ups, T-seals, U-seals, etc. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.

SEAL INFORMATION
MATERIAL 60D & 57A
URETHANE COMPOSITE
TEMPERATURE RANGE -65° to +220° F
PRESSURE RANGE 0 to 5,000 PSI
SPEED 3 FT/SEC
PART NUMBER (Prefix) - (OD) x (ID) x (Groove Width)
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Product Description A Nom ID B Nom OD C Nom Height D Groove Width H Groove Diameter I Piston Diameter J Bore Diameter List Price Your Price and AvailabilityBuy
PSU-1.50X1.00X.375   
PSU-1.50X1.00X.375, PS-PU-1.5x0.375, STANDARD PISTON SEALS
1 1-1/2 3/8 .394 1.000 1.499 1.500 $9.41
Qty
PSU-1.50X1.12X.250   
PSU-1.50X1.12X.250, PS-PU-1.5x0.25, STANDARD PISTON SEALS
1-1/8 1-1/2 1/4 .263 1.125 1.499 1.500 $7.08
Qty
PSU-1.50X1.25X.187   
PSU-1.50X1.25X.187, PS-PU-1.5x0.187, STANDARD PISTON SEALS
1-1/4 1-1/2 .187 .196 1.250 1.499 1.500 $5.27
Qty
PSU-1.75X1.25X.375   
PSU-1.75X1.25X.375, PS-PU-1.75x0.375, STANDARD PISTON SEALS
1-1/4 1-3/4 3/8 .394 1.250 1.749 1.750 $9.84
Qty
PSU-1.75X1.37X.250   
PSU-1.75X1.37X.250, PS-PU-1.75x0.25, STANDARD PISTON SEALS
1-3/8 1-3/4 1/4 .263 1.375 1.749 1.750 $7.22
Qty
PSU-1.75X1.37X.500   
PSU-1.75X1.37X.500, PS-PU-1.75x0.5, STANDARD PISTON SEALS
1-3/8 1-3/4 1/2 .526 1.375 1.749 1.750 $12.75
Qty
PSU-2.00X1.50X.375   
PSU-2.00X1.50X.375, PS-PU-2x0.375, STANDARD PISTON SEALS
1-1/2 2 3/8 .394 1.500 1.999 2.000 $11.55
Qty
PSU-2.00X1.62X.312   
PSU-2.00X1.62X.312, PS-PU-2x0.312, STANDARD PISTON SEALS
1-5/8 2 .312 .328 1.625 1.999 2.000 $9.12
Qty
PSU-2.00X1.62X.375   
PSU-2.00X1.62X.375, PS-PU-2x0.375, STANDARD PISTON SEALS
1-5/8 2 3/8 .394 1.625 1.999 2.000 $10.49
Qty
PSU-2.25X1.87X.312   
PSU-2.25X1.87X.312, PS-PU-2.25x0.312, STANDARD PISTON SEALS
1-7/8 2-1/4 .312 .328 1.875 2.249 2.250 $11.32
Qty
PSU-2.50X2.00X.375   
PSU-2.50X2.00X.375, PS-PU-2.5x0.375, STANDARD PISTON SEALS
2 2-1/2 3/8 .394 2.000 2.499 2.500 $11.32
Qty
PSU-2.50X2.12X.312   
PSU-2.50X2.12X.312, PS-PU-2.5x0.312, STANDARD PISTON SEALS
2-1/8 2-1/2 .312 .328 2.125 2.499 2.500 $10.05
Qty

PSU-1.50X1.00X.375

PSU-1.50X1.00X.375, PS-PU-1.5x0.375, STANDARD PISTON SEALS
Our price $9.41
Qty

PSU-1.50X1.12X.250

PSU-1.50X1.12X.250, PS-PU-1.5x0.25, STANDARD PISTON SEALS
Our price $7.08
Qty

PSU-1.50X1.25X.187

PSU-1.50X1.25X.187, PS-PU-1.5x0.187, STANDARD PISTON SEALS
Our price $5.27
Qty

PSU-1.75X1.25X.375

PSU-1.75X1.25X.375, PS-PU-1.75x0.375, STANDARD PISTON SEALS
Our price $9.84
Qty

PSU-1.75X1.37X.250

PSU-1.75X1.37X.250, PS-PU-1.75x0.25, STANDARD PISTON SEALS
Our price $7.22
Qty

PSU-1.75X1.37X.500

PSU-1.75X1.37X.500, PS-PU-1.75x0.5, STANDARD PISTON SEALS
Our price $12.75
Qty

PSU-2.00X1.50X.375

PSU-2.00X1.50X.375, PS-PU-2x0.375, STANDARD PISTON SEALS
Our price $11.55
Qty

PSU-2.00X1.62X.312

PSU-2.00X1.62X.312, PS-PU-2x0.312, STANDARD PISTON SEALS
Our price $9.12
Qty

PSU-2.00X1.62X.375

PSU-2.00X1.62X.375, PS-PU-2x0.375, STANDARD PISTON SEALS
Our price $10.49
Qty

PSU-2.25X1.87X.312

PSU-2.25X1.87X.312, PS-PU-2.25x0.312, STANDARD PISTON SEALS
Our price $11.32
Qty

PSU-2.50X2.00X.375

PSU-2.50X2.00X.375, PS-PU-2.5x0.375, STANDARD PISTON SEALS
Our price $11.32
Qty

PSU-2.50X2.12X.312

PSU-2.50X2.12X.312, PS-PU-2.5x0.312, STANDARD PISTON SEALS
Our price $10.05
Qty
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