Products / U-Cups
U-Cups
U-shaped lips for rods and pistons. Loaded versions hold contact at low pressure; unloaded versions suit higher pressure once the system is up.
- Materials
- Polyurethane, NBR, HNBR, FKM
- Temperature
- Typically −40°F to +250°F
- Standards
- Inch, metric
Series
| Code | Name | Notes |
|---|---|---|
| U1 | Unloaded rod | Simple glands |
| U2 | Loaded rod | Low-pressure sealing |
| U5 | Piston U-cup | Single-acting pistons |
These are the stocked series. If the size or shape is not here, it can still be made.
Overseas molding
Don’t see it? We can get it molded.
Stock covers the common sizes. Everything else — a non-standard dash, a special shape, a compound you do not see listed — can be custom molded overseas, quickly and at a competitive price. Send a print, a sample, or just the dimensions.
- Prototype molds and production runs
- Material cutting and post cure
- Automatic inspection
- Aging, oil, low-temp, durometer, and CMM checks

Manufacturing facility

Mold room

Material cutting

Post-cure ovens
