GFD ULTRA SEAL


Spring Energized PTFE-Seals

Hardware and Groove Dimensions

Radial Seals:

Radial Seals

Rod Seals:

For rod seals use the dimension B for Nominaldimension.
Dimension B = rod diameter

Piston Seals:

For piston seals use the dimension A for Nominaldimension.
Dimension A = cylinderbore diameter

Groove Dimensions - Radial Seals:

Size
Dash
Number
Nominal
cross
section
A (inch) B (inch) G + .010
-.000
E max
(inch)
from to from to
004 - 045 1/16" .203 1.125 .075 4.000 .094/.104 .004
106 - 163 3/32" .312 6.187 .125 6.000 .141/.151 .005
202 - 281 1/8" .500 13.750 .250 13.500 .188/.198 .005
313 - 381 3/16" .875 12.375 .500 12.000 .281/.291 .007
409 - 460 1/4" 3.000 16.000 2.500 15.500 .375/.385 .008
  3/8" 3.750 118 3.000 117 .590/.600 .011
1/2" 7.000 118 6.000 117 .708/.718 .015
3/4" 12.500 118 12.000 117 .484/.494 .019

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Axial Seals:

Axial Seals

Seals for internal pressure use the outside diameter OD as Nominal diameter. (Nominal diameter = groove outside diameter).

Seals for external pressure and vacuum use the inside diameter ID as Nominal diameter. (Nominal diameter = groove inside diameter).

Groove Dimensions - Axial Seals:

Nominal
cross
section
ID (inch) - .010 OD (inch) + .010 G
(inch)
from to from to
1/16" 0.197 5.905 .398 5.905 .094/.104
3/32" 0.315 11.811 .551 11.811 .141/.151
1/8" 0.472 19.685 .708 19.685 .188/.198
3/16" 0.984 31.496 1.378 31.469 .281/.291
1/4" 2.165 47.244 2.755 47.244 .375/.385
3/8" 4.724 117 5.905 118 .590/.600
1/2" 8.464 117 9.842 118 .708/.718
3/4" 11.811 117 13.779 118 .984/.994

Consult our Applications Engineering group for standard dash number sizes.

Kalrez® and Viton® are registered trademarks of DuPont Dow Elastomers.

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GFD-Ultraseal, Inc.
12121 Wilshire Boulevard, Suite 525
Los Angeles, California 90025-1176
USA

EMail: service@ultraseal.info
Website: www.ultraseal.info

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