Installing CPVC Pipe

Regarding residential hot and cold plumbing systems ( CPVC Pipe), contractors prefer solvent cement because it's reliable and easy to do, saving time and money.

How to Install CPVC Pipe?

Unlike Polypropylene Pie and metal pipes, which require heat and flame to weld joints together, CPVC pipes and fittings use a process called solvent cement welding.

Solvent cement welding is a fast, safe process that fuses a pipe and fits it together at the molecular level, creating a permanent joint that becomes the strongest part of the system.

Also Read: cpvc installation guide

Consider the following points to install the CPVC pipe:

Cut the Pipe

Square cuts are essential for CPVC installation. It ensures a maximum bonding surface. You can use a circular saw, miter saw, hand saw, or ratchet cutter to cut CPVC piping. Whichever you choose, make sure the blade is fine-toothed (6 to 7 centimeters) and sharp.

For hand saws and ratchet cutters, be sure to use a guide to ensure a square cut.

If the pipe is cracked or damaged during the cut, measure five centimeters from the crack and re-cut for more on cutting CPVC pipe.

Also Read: is cpvc and pvc the same size

Prepare the Pipe and Fittings

Use a file or knife to remove all filings and scrap from the pipe end. Then, take sandpaper and create a slight angle along the pipe edge. This prevents solvent cement from being pushed down the fitting.

Check that the pipe fits at least ⅔ of the way into the fitting before applying any solvent cement.

Also Read: brass pipe leak repair

Apply the Solvent Cement

Before solvent cementing, it is recommended to use a primer. Once the primer is applied, use a dauber that is no more than half the width of the pipe to apply the solvent cement, but check the manufacturer’s manual for specific instructions.

Apply a heavy, even coat of solvent cement to the outside of the pipe. Then, without re-dipping, apply a thin, even coat to the inside of the fitting. Check to make sure there are no drips.

Also Read: why is it called a spud wrench

Assemble the Joint

Insert the pipe into the fitting as soon as possible. Depending on the temperature and humidity, solvent cement can evaporate quickly. If, for some reason, there’s a delay and the solvent cement is no longer wet, the previous solvent cement layer can be removed with sandpaper. Then a new layer can be applied without compromising the joining process.

After inserting the pipe into the fitting, verify that it reaches all the way to the end of the fitting. Hold in place for 5-10 seconds to allow the union to set. This time will vary based on environmental conditions.

Also Read: copper tubing types