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ASP U-Cup

Movement

Reciprocating

Duty

Low Pressure

Action

Single

Description:

The ASP U-Cup is an asymmetric piston seal for general purpose applications. The trimmed sealing lip offers high static and dynamic tightness. This seal offers good back-pumping ability and works well in tandem with the HSP Seal being the primary sealing element.

The ASP U-Cup sealing geometry can be modified to help increase seal-ability and decrease friction depending on the application requirements. Please speak to one of our technical sales staff for more information This email address is being protected from spambots. You need JavaScript enabled to view it..

Features:
  • High extrusion resistance
  • Excellent dynamic and static sealing capabilities
  • Good sealing stability
  • No adhesion effect on sliding surface, even after a long standstill
  • Resistant to pressure spikes and diesel effect,  providing a longer service life
Applications:
  • Lift Platforms
  • Injection Molding Machines
  • Hydraulic Presses
  • General Cylinders  
Technical Data

Material:

Nitrile/FKM/HNBR/Urethane

Material Code:

0101/0201/0120/2001

Note: Alternative materials are available upon request

Temperature:

-40°C to +120°C
-40°F to +250°F

FKM

-26°C to +204°C
-15°F to +400°F

-40°C to +150°C
-40°F to +320°F

-54 ºC to +105 ºC
-65 ºF to +220 ºF

Speed:

3 ft/s

Pressure:

5,800 psi (up to 10,000 with added back-up ring)

Media:

Chemical compatibility chart

Note: All parameters can vary depending on the specific application, please take the above information as a general guideline. Should you have any concerns please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it.

Hardware Design Guidelines & Part Numbers

Radial clearances: inch"

      
Pressure 1000 PSI 3000 PSI 5000 PSI 6000 PSI
Max Diametrical Gap 0.032" 0.015" 0.012" 0.009"

Note: Max Diametrical Gap can vary depending on what material is chosen, as well as the temperature and media of the application. Please contact our sales department for more info This email address is being protected from spambots. You need JavaScript enabled to view it.

Surface finish: µinch

Roughness DepthMating SurfaceGroove Surface
Rmax 40-160 <625
RzDin 25-100 <400
Ra 4-16 <63

asp u-cup

asp u-cup

Note: The sizes listed below are all standard profile dimensions, K.C. Seals can and does manufacturer to non-standard housing dimensions.

Style Part #Groove Width AGroove Diameter HBore Diameter G
ASP 0.156 0.750 1.000
ASP 0.281 0.750 1.000
ASP 0.281 1.000 1.250
ASP 0.343 1.250 1.625
ASP 0.343 1.375 1.750
ASP 0.343 1.750 2.125
ASP 0.406 1.750 2.125
ASP 0.406 2.000 2.375
ASP 0.217 2.125 2.500
ASP 0.343 2.125 2.500
ASP 0.406 2.125 2.500
ASP 0.406 3.125 3.500
ASP 0.406 0.250 0.688
ASP 0.388 1.000 1.500
ASP 0.406 1.000 1.500
ASP 0.343 1.125 1.625
ASP 0.406 1.250 1.750
ASP 0.343 1.500 2.000
ASP 0.406 1.500 2.000
ASP 0.406 1.750 2.250
ASP 0.406 2.000 2.500
ASP 0.281 2.062 2.563
ASP 0.375 2.062 2.563
ASP 0.343 2.250 2.750
ASP 0.406 2.250 2.750
ASP 0.406 2.500 3.000
ASP 0.406 2.750 3.250
ASP 0.406 3.000 3.500
ASP 0.406 3.125 3.625
ASP 0.406 3.250 3.750
ASP 0.406 3.500 4.000
ASP 0.406 3.625 4.125
ASP 0.406 3.750 4.250
ASP 0.406 4.000 4.500
ASP 0.594 4.000 4.500
ASP 0.406 4.500 5.000
ASP 0.468 4.500 5.000
ASP 0.594 4.500 5.000
ASP 0.406 5.000 5.500
ASP 0.594 5.000 5.500
ASP 0.281 5.500 6.000
ASP 0.406 5.500 6.000
ASP 0.531 5.500 6.000
ASP 0.594 5.500 6.000
Style Part #Groove Width AGroove Diameter HBore Diameter G