Fernco, Inc.

Expansion Joints
for trouble-free vertical installation.

Expansion Joints
These one-piece expansion joints allow for thermal expanstion and contraction of drain, waste and vent (DWV) and inside rain water conductor systems. There are no sliding parts to malfunction, no packing to jam, freeze or leak. They eliminate costly offsets normally used to accommodate expansion and contraction.

These leakproof, maintenance-free, distortion-free joints have internal stops for positive positioning. Available in 1½", 2", 3", 4".

Unique one-piece construction.
No sliding parts to malfunction.
No packing to jam, freeze, or leak.
Maintenance-free.

Part No.	Size
XJ-150	1½" (38mm)
XJ-2	2" (50mm)
XJ-3	3" (76mm)
XJ-4	4" (101mm)

Thermal Expansion Table for PVC Pipe
Temp. Change (°F)	Column 1 Expansion Per Ft. (inches/mm)	Column 2 Limit Per Expansion Joint (Ft.)
50°	.0174 (.0443cm)	86
60°	.0209 (.0351cm)	71
70°	.0244 (.0620cm)	61
80°	.0278 (.0760cm)	54
100°	.0348 (.0884cm)	43

Fernco Expansion Joints will accommodate a maximum of 1½" expansion and ½" contraction from a normal position. For A.B.S. pipe use 2 x value of Column 1 and ½ x value of Column 2.