The 135 Series U-cup seal is a popular choice to replace older style V-packing sets. It is a high-performance, double-lipped seal for use as in high-clearance applications, typically in moderate to high-pressure environments. Its full-face backup ring encapsulates the seal to add stability under high-pressure conditions, while preventing extrusion. The asymmetrical design of the U-cup ensures the 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.
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 135 Series rod seal features high-grade polyurethane. Standard materials are MP03 machined H-PU, available up to 2100 mm in diameter. 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, PTFE with bronze filler and PEEK.
|Polyurethane H-PU / POM||MP30|
|water oil emulsions (HFA)||+5…+55||+40…+130|
|water-glycol fluids (HFC)||-20…+55||-5…+130|
|polyol esters (HFD)||-||-|
|speed||0.5m/s (1.6 ft/sec)|
|pressure||<1380 bar (20000 psi)|
Note: for other materials or fluids please contact our engineering department.