Economy Expansion Joints

Our most economical full-pressure joint. A molded joint with 1 through 4 arches and large movement per arch. Arches may be filled or unfilled. Sizes from 11/2 in. to 24 in. Standard 150# ASA drilling. Up to 400F operating temperature depending on material. Up to 150 psi working pressure depending on size. Vacuum rating up to 25 in. Hg depending on size. The following table covers our single arch economy joint in sizes 11/2 in. through 12 in.

For greater axial movement call about our multiple arch joints. For greater working pressure and vacuum rating or for custom face-to-face distance and drilling-see our premium joints below.

Pipe Size (in.) Face to Face (in.) Axial Com-pression (in.) Axial Exten-sion (in.) Lateral Deflection (in.) Angular Rotation (deg.) Torsional Rotation (deg.) Rated Working Pressure (psi) Min. Burst Pressure (psi) Vacuum Rating (in. Hg)
1 1/2 6 1 3/4 3/4 3/4 25 3 150 600 15
2 6 1 3/4 3/4 3/4 25 3 150 600 15
2 1/2 6 1 3/4 3/4 3/4 25 3 150 600 15
3 6 1 3/4 3/4 3/4 20 3 150 600 15
4 6 1 3/4 3/4 3/4 20 3 150 600 15
5 6 1 3/4 3/4 3/4 18 3 150 600 15
6 6 1 3/4 3/4 1 16 3 150 600 15
8 6 1 3/4 3/4 1 11 3 150 600 15
8 8 1 3/4 3/4 1 11 3 150 600 15
10 8 1 3/4 3/4 1 10 3 150 600 15
12 8 1 3/4 3/4 1 9 3 150 600 15

Premium Expansion Joints

A very versatile, robust, hand-made joint available with 1 through 4 arches. Arches may be filled or unfilled. Sizes from 1/2 in. to 144 in. with custom face-to-face distances. Available with any drilling configuration. Up to 400F operating temperature depending upon material. Standard working pressures to 250 psi depending on size (higher pressures available). Vacuum rating up to 30 in. Hg for all sizes. Also available PTFE-lined for aggressive chemical environments. The following table covers our single arch premium joint in sizes 2 in. through 12 in.

For greater movement call about our multiple arch joints. Larger sizes, higher working pressure, custom face-to-face distances and PTFE lining available.

Pipe Size (in.) Std Face-to-Face (in.) Axial Com-pression (in.) Lateral Deflection (in.) Angular Rotation (deg.) Torsional Rotation (deg.) Std Working Pres. (psi) Min. Burst Pres. (psi) Vacuum Rating (in. Hg)
2 6 3/4 1/2 14.5 3 165 660 30
2 1/2 6 3/4 1/2 11.5 3 165 660 30
3 6 3/4 1/2 10.0 3 165 660 30
4 6 3/4 1/2 7.5 3 165 660 30
5 6 3/4 1/2 6.0 3 140 560 30
6 6 3/4 1/2 5.5 3 140 560 30
8 6 3/4 1/2 5.0 3 140 560 30
10 8 1 5/8 4.5 3 140 560 30
12 8 1 5/8 3.8 3 140 560 30