The 137 Series U-cup seal is a high-performance, double-lipped seal for use in high-clearance applications, typically in moderate to high-pressure environments. Its asymmetrical design ensures that the seal lip forces are optimized for every cross section and diameter. The full-face backup ring supports the seal and ensures maximum extrusion resistance in a larger than normal clearance application. Manufactured in a variety of materials and sizes from 6 mm up to 2100 mm in diameter in standard or custom sizes.
Designed specifically for large clearance applications
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 2100 mm
The 137 Series rod seal features high-grade polyurethane. Standard materials are MP03 machined H-PU, available up to 2100 mm 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. The backup ring materials include POM and PEEK
|water oil emulsions (HFA)||+5…+55||+40…+130||+5…+50||+40…+120|
|water-glycol fl uids (HFC)||-20…+55||-5….+130||-30…+40||-20…+100|
|polyol esters (HFD)||-||-||-||-|
|Speed||0.5 m/s (1.6 ft/sec)|
|Pressure||400 bar (6000 psi)|
Note: for other materials or fluids please contact our engineering department.