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201 Series: Piston Seal U-Cup – Asymmetrical
The 201 Series Piston U-Cup seal is used in a variety of standard-duty applications.
201 Series
The 201 Series Piston U-Cup seal is used in a variety of standard-duty applications. Its asymmetrical design ensures that the seal lip forces are optimized for every cross section and diameter. Manufactured in a variety of materials and sizes from 6 mm up to 2100 mm in standard or custom diameters.
Installation Drawing
Material Ranges
The 201 Series Piston U-Cup features high-grade polyurethane. Standard materials are MP03 machined H-PU, available up to 2100mm in diameter, and MP50 injection-molded TPU. To suit a variety of applications, the series is also available in NBR, H-NBR, EPDM and high temperature-resistant FPM.
| Polyurethane H-PU | MP03 |
| Polyurethane TPU | MP50 |
Temperature Ranges
MP03
MP50
°C
°F
hydraulic oil
-20…+115
hydraulic oil
-5…+240
water oil emulsions (HFA)
+5…+55
water oil emulsions (HFA)
+40…+130
water-glycol fluids (HFC)
-20…+55
water-glycol fluids (HFC)
-5….+130
water
+5…+55
water
+40…+130
Speed
0.5 m/s (1.6 ft/sec)
Speed
0.5 m/s (1.6 ft/sec)
Pressure
400 bar (6000 psi)
Pressure
400 bar (6000 psi)
hydraulic oil
-30…+110
hydraulic oil
-20…+230
water oil emulsions (HFA)
+5…+50
water oil emulsions (HFA)
+40…+120
water-glycol fluids (HFC)
-30…+40
water-glycol fluids (HFC)
-20…+100
water
+5…+50
water
+40…+120
Speed
0.5 m/s (1.6 ft/sec)
Speed
0.5 m/s (1.6 ft/sec)
Pressure
400 bar (6000 psi)
Pressure
400 bar (6000 psi)
CAD Files
Engineered Performance
Built to Perform
The 201 Series Piston U-Cup is one of the most versatile seals typically used in moderate to high-pressure applications.
Benefits
- High pressure capability and wide temperature range
- Excellent fluid compatibility including water-based fluids (H-PU)
- Exceptional abrasion resistance
- Highly extrusion resistant
- Available in diameters up to 2100mm
Applications
- Single Acting Cylinders
- Mobile Hydraulics
- Hydraulic Cylinder Rebuild
- Construction Equipment
- Hydraulic Presses
- Injection Molding Machines
