Polymer Concepts Technologies, Inc.

AS 9100 CERTIFIED

ISO 9001 CERTIFIED

ITAR REGISTERED & CERTIFIED

HARDWARE CONFIGURATION OPTIONS FOR PISTON OR ROD SEAL GLANDS

All of Polymer Concepts' seal configurations will fit in standard o-ring glands per AS4716/MIL-G-5514. In addition, because Polymer Concepts' seals are machined from billets of various polymer compounds, we can adapt to non-standard diameters as well. The tables below show the different radial cross section gland dimensions and hardware finishes.Gland design consideration for proper geometry in the early stages of design can eliminate installation problems. The use of split or separable glands in pistons and rod seal applications is always desirable to eliminate stretching or compressing the seal during installation. When the use of closed gland configuration is unavoidable, the Polymer Concepts 100 Series seals can be installed into closed glands. However, depending upon the diameter and cross section, installation tools may be required. An alternative design to the two-piece configuration when the hardware must retain the seal within the gland is the reduced gland. The gland side wall on the pressure side is reduced, which provides a partial shoulder to retain the seal. Stretching or distorting the seal during installation is minimized. Please consult the factory for reduced gland detail dimensions.

STANDARD O-RING GLAND DIMENSIONS
PER AS4716/MIL-G-5514

Gland dimensions example
ROD AND PISTON GLAND DIMENSIONS
Cross Section G
+.010/-.000
G1
+.010/-.000
G2
+.010/-.000
C
Min.
E
Nom.
R
Groove Radius
  Military Industrial
A .056/.058 .061/.063 .094 .149 .207 .040 .004 .005/.015
B .089/.091 .094/.096 .141 .183 .245 .062 .005 .005/.015
C .121/.123 .125/.127 .188 .235 .304 .094 .006 .010/.025
D .186/.188 .188/.190 .281 .334 .424 .125 .007 .020/.035
E .238/.241 .250/.253 .375 .475 .579 .156 .008 .020/.035

ALTERNATE RADIAL GLANDS

Diagram of alternate radial glands