As pipe diameter increases, so does the difficulty in installing it. The professional installer should be able to successfully assemble large diameter pipe and fittings by following the IPS Weld-On solvent cementing instructions listed in the beginning of this guide along with the following additional recommendations.

1. Use of proper size applicators is even more necessary to insure enough cement is applied to fill the larger gap that exists between the pipe and fittings.

2. Of equal importance is the use of the applicable cement for the size pipe and fittings being installed. We recommend the following:

3. End of pipe must be chamfered.

4. Increase size of joining crew:  6"-8": 2-3 people per joint   10"-30": 3-4 people per joint. It is important in large diameter joining that the primer and cement be applied simultaneously to the pipe and fittings.

5. Make sure to apply a second full layer of cement to the pipe.

6. Because of the short sockets in many large diameter fittings, IT IS VERY IMPORTANT TO HAVE PIPE BOTTOMED INTO THE FITTING.  It is for this reason that we recommend above 6" diameter the use of a come-a-long such as the one pictured (Manufactured by Pipe Tec).

7. Large diameter pipe and fittings require longer set and cure times. *(In cold weather, a heat blanket may be used to speed up the set and cure times.)

8. Prefabricate as many joints as possible.

9. If pipe is to be buried, make as many joints as possible above ground, then after joints have cured, carefully lower into trench.