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U-CUPS

Nitrile U-Cups

Dichtomatik Nitrile U-Cups are designed to fit in most U-Cup seal glands. They are manufactured in 70, 80, and 90 durometer Nitrile depending on the profile. The profiles are rated for dynamic applications with a rod speed of 1.5 ft/s (0.5 m/s).

The pressure ratings can be increased with the use of a Back-Up Ring.

 
 

Nitrile U-Cups

ADVANTAGES

  • Low Friction Performance in Rod or Piston Applications. Assures Easy Movement without Excessive Drag.
  • Ideal for Pneumatic and Low Pressure Hydraulic Cylinders.
  • Easy Assembly: Stretches or Snaps into Place Resulting in Lower Assembly Costs.
Nitrile U-Cups
 

Nitrile U-Cups – AN6226 SERIES

  • Standard material is 70 durometer Nitrile.
  • Conform to Army-Navy specification AN6226.
  • Rated for pressures to 500 PSI.
  • Part numbered as AN6226-20 (dash numbers are industry standard).
Nitrile U-Cups – AN6226 SERIES
 

Nitrile U-Cups – 8400 SERIES

  • Standard material is 80 durometer Nitrile.
  • Designed to be used efficiently in any groove design for u-packings.
  • Low friction assures easy movement without excessive force.
  • Ideal for low pressure, low speed hydraulic and pneumatic cylinders.
  • Easy to assemble; stretch or snap into place- lower cost of assembly.
  • Rated for pressures to 1250 PSI.
  • Beveled sealing lip.
  • Part numbered as:
    • 8405-0100 (05/32 cross section, 1” ID).
    • 8410-0737 (10/32 cross section, 7.375 ID).
Nitrile U-Cups – 8400 SERIES

Polyurethane U-Cups

Polyurethane U-cups

Polyurethane U-cups

ADVANTAGES

  • Wear Resistance.
  • Resistance to Pressure
  • Abrasion Resistance
  • Hydrolysis Resistance
  • Extrusion Resistance
  • Oil Resistance
  • Compression Set
  • Resistance
  • Ease of Installation
 

MA25 – Polyurethane Symmetrical U-cup

MA25 – Polyurethane Symmetrical U-cup

ADVANTAGES

  • Molded from high quality polyurethane
  • High service life because of excellent PU Wear Resistance
  • Beveled lip design
  • Ideal for Rod or Piston applications
  • Part numbered as MA25-10001250-250 (Inch ID x OD x Ht MA25-25x33x4 (metric)
 

MA39 – Polyurethane Double Lip Rod U-cup

Asymmetrical U-cup with second sealing lip on the inside diameter heel. The back-bevelled lip faces the rod where it will provide low pressure sealing and wiping on the rod surface. The non-symmetrical extended lip is used as a stabilizing element on the static sealing surface.

ADVANTAGES

  • Increased seal stability.
  • Effective under side load.
  • Proven extremely dry rod seal.
  • High service life because of excellent PU Wear Resistance.
  • Parts Numbered as ID x OD x Ht:
    • MA39-10001250-250
    • MA39-100x120x12
MA39 – Polyurethane Double Lip Rod U-cup
 

MA28 – Polyurethane Piston U-cup

Asymmetrical U-cup, The back-bevelled lip faces the bore where it will provide low pressure sealing and wiping on the bore surface. The non-symmetrical extended lip is used as a stabilizing element on the static sealing surface.

  • Parts Numbered as OD x ID x HT
    • MA28-45003500-375
    • MA28-160x140x16
 MA28 – Polyurethane Rod U-cup