Heavy-Duty Rod U-Cup Seal with Full-Face Backup Ring
Series 135: Heavy-Duty Rod U-Cup Seal with Full-Face Backup Ring
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.
Installation
Benefits
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
Applications
The 135 Series U-cup seal is typically used in high-clearance applications as a primary seal and functions well in moderate to high pressures. It is a popular choice to replace V-packing sets.
Typical Applications
- Steel and aluminum processing
- Mining
- Agriculture
- Construction equipment
- Presses
- Injection molding machines
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.
| Material | Code |
|---|---|
| Polyurethane H-PU / POM | MP30 |
| Hydrogenated NBR-PTFE/Bz | MN32 |
| Temperature | MP30 °C |
°F |
||
|---|---|---|---|---|
| hydraulic oil | -20…+115 | -5…+240 | ||
| water oil emulsions (HFA) | +5…+55 | +40…+130 | ||
| water-glycol fluids (HFC) | -20…+55 | -5…+130 | ||
| polyol esters (HFD) | - | - | ||
| water | +5…+55 | +40…+130 | ||
| speed | 0.5m/s (1.6 ft/sec) | |||
| pressure | <1380 bar (20000 psi) | |||
Note: for other materials or fluids please contact our engineering department.
