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SPR Rod Seal

Movement

Reciprocating

Duty

Low Pressure

Action

Single

Description:

The SPR is a compact rod seal with a stable fit in the housing. Its compact design makes the SPR an exceptional choice for small housings. The SPR is mainly used to seal high viscosity fluids.

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:
  • Small housings
  • High viscosity fluids
Technical Data

Material:

Nitrile/FKM/HNBR/Urethane/Hytrel

Material Code:

0101/0201/0120/2001/4001

Note: Alternative materials are available upon request

Temperature:

Nitrile

-40°C to +120°C
-40°F to +250°F

FKM

-26°C to +204°C
-15°F to +400°F

HNBR

-40°C to +150°C
-40°F to +320°F

Urethane

-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 2000 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

spr seal1

spr seal1

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 DRod Diameter BHousing Diameter A
SPR-01 0.218 0.625 0.875
SPR-02 0.156 0.750 1.000
SPR-03 0.281 0.750 1.000
SPR-04 0.156 0.875 1.125
SPR-05 0.156 1.000 1.250
SPR-06 0.218 1.000 1.250
SPR-07 0.218 0.875 0.876
SPR-08 0.281 0.875 0.876
SPR-09 0.343 1.125 1.126
SPR-10 0.406 1.125 1.126
SPR-11 0.281 1.750 1.751
SPR-12 0.343 1.875 1.876
SPR-13 0.281 2.000 2.001
SPR-14 0.343 2.250 2.251
SPR-15 0.343 2.500 2.875
SPR-16 0.406 0.937 1.438
SPR-17 0.281 1.000 1.500
SPR-18 0.281 1.125 1.625
SPR-19 0.281 1.250 1.750
SPR-20 0.343 1.250 1.750
SPR-21 0.343 1.500 2.000
SPR-22 0.343 1.625 2.125
SPR-23 0.406 1.875 2.375
SPR-24 0.281 2.000 2.500
SPR-25 0.343 2.000 2.500
SPR-26 0.406 2.125 2.625
SPR-27 0.406 2.375 2.875
SPR-28 0.281 2.500 3.000
SPR-29 0.343 2.500 3.000
SPR-30 0.406 2.625 3.125
SPR-31 0.406 3.000 3.500
SPR-32 0.406 3.375 3.875
SPR-33 0.406 3.500 4.000
SPR-34 0.620 3.750 4.250
SPR-35 0.281 4.000 4.500
SPR-36 0.594 4.000 4.500
SPR-37 0.594 4.500 5.000
SPR-38 0.594 5.000 5.500
SPR-39 0.620 5.250 5.750
SPR-40 0.620 6.750 7.250
SPR-41 0.406 5.000 5.600
SPR-40 0.406 1.375 2.000
SPR-41 0.406 2.000 2.625
SPR-42 0.406 2.250 2.875
SPR-43 0.531 2.250 2.875
SPR-44 0.406 2.375 3.000
SPR-45 0.531 2.375 3.000
SPR-46 0.406 2.750 3.375
SPR-47 0.406 3.000 3.625
SPR-48 0.531 3.250 3.875
SPR-49 0.531 3.375 4.000
SPR-50 0.531 4.000 4.625
SPR-51 0.406 4.500 5.125
SPR-52 0.406 5.500 6.125
SPR-53 0.406 2.000 2.750
SPR-54 0.531 2.000 2.750
SPR-55 0.406 3.000 3.750
SPR-56 0.656 3.000 3.750
SPR-57 0.406 3.500 4.250
SPR-58 0.531 3.500 4.250
SPR-59 0.406 3.625 4.375
SPR-60 0.406 4.000 4.750
SPR-61 0.531 4.000 4.750
SPR-62 0.656 4.000 4.750
SPR-63 0.531 4.250 5.000
SPR-64 0.656 4.251 5.000
SPR-65 0.531 4.375 5.125
SPR-66 0.531 4.500 5.250
SPR-67 0.656 4.500 5.250
SPR-68 0.406 4.750 5.500
SPR-69 0.531 4.875 5.625
SPR-70 0.656 5.250 6.000
SPR-71 0.656 5.750 6.500
SPR-72 0.656 6.000 6.750
SPR-73 0.531 6.500 7.250
SPR-74 0.656 6.500 7.250
SPR-75 0.531 7.000 7.750
SPR-76 0.656 7.000 7.750
SPR-77 0.531 4.500 5.375
SPR-78 0.781 5.000 6.000
SPR-79 0.720 7.000 8.000
SPR-80 0.781 7.000 8.000
SPR-81 0.656 9.000 10.000
SPR-82 0.781 9.000 10.000
SPR-83 0.656 10.000 11.000
SPR-84 0.781 12.000 13.000
Style Part #Groove Width DRod Diameter BHousing Diameter A