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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

CodeNameNotes
U1Unloaded rodSimple glands
U2Loaded rodLow-pressure sealing
U5Piston U-cupSingle-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

    Manufacturing facility

  • Mold room

    Mold room

  • Material cutting

    Material cutting

  • Post-cure ovens

    Post-cure ovens