Jonathan Simon, Lubrizol Superior Supplies Inc.

CPVC is likely one of the most generally used plumbing supplies within the U.S. and has a number of benefits that make it supreme for residential plumbing. To comply with are some suggestions for working with CPVC to make sure a quick, skilled set up that stands the check of time. The following pointers are particular to Copper Tube Dimension CPVC (which is often tan in coloration) and will not apply to IPS Schedule 80 CPVC (which is often grey in coloration). As with every plumbing system, at all times seek the advice of the producer’s directions for particular dealing with and set up info.

Chopping and Welding Copper Tube Dimension CPVC

When putting in CPVC, the pipe must be minimize sq., and any tailings and bevel on the pipe finish eliminated by chamfering. Ratchet-style cutters can be utilized for brand new CPVC. For older CPVC pipe, a C-style tubing cutter, fine-tooth noticed or wheel cutter is usually recommended as CPVC pipes change into extra inflexible with age.

CPVC pipes and fittings are solvent welded collectively to create a bond that’s the strongest a part of the system. Copper Tube Dimension CPVC can use one-step solvent cement, equivalent to FlowGuard® Gold 1-Step Yellow or new Excessive Distinction Inexperienced Cement. The usage of inexperienced solvent cement with CPVC was added to the 2024 codes of main our bodies, together with the Uniform Mechanical Code, Uniform Plumbing Code, Worldwide Plumbing Code, and Worldwide Mechanical Code.

As a result of service plumbers usually have to make repairs shortly and get to the following job, a specifically formulated solvent cement, Oatey® Orange Lava, was developed. It allows one-step treatment occasions as quick as quarter-hour for chilly water traces in sure situations.

CPVC pipes and fittings use an interference match to make sure a powerful bond and it’s a great follow to check the match earlier than making use of solvent cement. Whenever you insert the pipe into the becoming, it is best to really feel some resistance earlier than bottoming out the pipe, which signifies a correct match.

When making use of cement, a great follow is to use a heavy, even coat to the surface of the pipe finish. Then, utilizing the identical applicator with out extra cement, apply a skinny coat contained in the becoming socket. After the cement has been utilized, the pipe must be inserted till it bottoms out towards the becoming.

At all times confirm code necessities and comply with the solvent cement producer’s directions for treatment occasions and set up procedures.

Avoiding Dry Matches

The friction between the pipe and becoming in a good interference match can maintain for a very long time at pressures above 100 psi with out being solvent welded. Which means if a joint within the system isn’t solvent welded, the system can nonetheless go a stress check. Over time, pure motion and stress on the system will trigger an unwelded joint to fail. These dry-fit set up errors are extraordinarily uncommon however will be very irritating as a result of the failure might happen after the constructing is occupied.

To keep away from dry suits, by no means pre-assemble the system after which come again by with solvent cement. One of the best follow is to weld every joint as it’s assembled. This additionally ends in a sooner set up. For added peace of thoughts, some contractors might require  plumbers to preliminary joints with a  after they’re welded. Techniques ought to  nonetheless be visually inspected and Excessive Distinction Inexperienced Solvent Cement  makes this high quality assurance course of simpler than ever.

Defending CPVC pipes

As a result of CPVC resists degradation from chlorine, chloramines and chlorine dioxide in ingesting water, utilizing CPVC eliminates a key issue – incompatibility with native water situations – that may shorten the lifetime of different plumbing techniques. Listed below are three issues you are able to do to make sure an extended life for CPVC pipes and fittings:

• Accommodate enlargement and contraction: FlowGuard Gold CPVC can increase about 1 inch per 50 toes of straight size of pipe per 50°F temperature enhance. In lots of instances, regular modifications of path will be sufficient to account for enlargement and contraction supplied the pure motion of the pipe will not be restricted and there’s sufficient spacing between elbows and hangers. Overtightening pipe hangers may additionally prohibit lateral motion of the pipe. For lengthy, straight runs, loops or offsets can be utilized. Seek the advice of the producer’s set up tips for directions.

• Examine for chemical incompatibility: If correctly put in CPVC pipe experiences a failure, one attainable perpetrator is contact with incompatible chemical compounds. The FBC™ System Appropriate Program can be utilized to determine supplies which can be suitable and incompatible with FlowGuard Gold, BlazeMaster and Corzan CPVC. For different manufacturers of CPVC piping, seek the advice of with the precise producer(s) for compatibility info.

• Defend towards freezing: There isn’t any such factor as a freeze-proof pipe. All residential plumbing supplies will fail if ice varieties within the pipe, blocking water circulate and creating pressures that exceed the fabric’s burst stress. At all times plan for chilly climate – even in areas the place it’s unusual – and comply with greatest practices for shielding towards freezing together with these really helpful by the pipe producer.

Showcase Your Craftmanship

Skilled plumbers recognize CPVC as a result of it’s straightforward to work with and ends in a clear, skilled set up that highlights the plumber’s craftmanship and dedication to high quality. Builders and householders recognize CPVC as a result of it might deal with aggressive water situations that may trigger untimely failure in different residential plumbing techniques. For extra info, go to flowguardgold.com.

The following pointers are for informational functions solely and don’t exchange any producer’s directions for dealing with or putting in pipe.

Jonathan Simon is the North American residential plumbing supervisor for Lubrizol Superior Supplies Inc., the mother or father firm for FlowGuard Gold Pipe and Fittings.