Robar Stainless Steel Adjustable Pipe Inserts | 8" Length

Robar's 8" Long Adjustable Stainless Steel Pipe Inserts are for use on thin wall PVC or High Density Polyethylene Pipe, to add hoop strength to pipe when using Robar couplings, repair clamps or restraining devices.

When using a restraining coupling, be sure the length is long enough to be within the restraint length. Available lengths are 6', 8"and 12"

1. Remove the insert and wedges from the box and verify thatthe insert diameter corresponds to the inside diameter of theHDPE pipe.

2. Gently compress the insert by hand and slide the insert intothe pipe. Slide the insert until the pipe stops touch the face ofthe pipe.

3. Examine the gap size in the insert to determine what sizewedge is necessary:Wedge # 1: Gap size 2-1/2” or less.Wedge # 2: Gap size between 2-1/2” and 3”.Wedge # 3: Gap size 3” or greater.

4. Slide the appropriate wedge into place. The insert will slide inbetween the 2 laminated sections of the wedge. Using a hammer,gently tap the wedge until it fits tightly into the insert.

5. When the wedge is in its final position, there should be no gapbetween the insert and the pipe wall. If there are any gaps,remove the insert and reinstall using a larger wedge.

DR17 Adjustable Insert Size Guide

DR11 Adjustable Insert Size Guide