How to Glue a CPVC Pipe

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CPVC pipe is glued together for a solid and watertight seal.
CPVC pipe is glued together for a solid and watertight seal. (Image: Jupiterimages/Photos.com/Getty Images)

CPVC pipe is a plastic plumbing pipe directly related to the more commonly known PVC pipe. CPVC pipe is used for both hot and cold water applications, and can withstand pressures as high as 400 psi at room temperature. They are manufactured in all the common plumbing sizes for home use, in diameters ranging from 1/4 inch up to 2 inches, and are also made in industrial size diameters from 1/4 inch up to a 12 inches. You will be able to find a CPVC pipe to suit your home or business needs.

Things You'll Need

  • Light sandpaper
  • CPVC Primer
  • CPVC Glue

Lay out the CPVC pipes to be fitted together. Push the pipes together in the couplings to make sure they fit, and check the pipes for burrs which must be removed with light sandpaper before gluing together.

Cover the end to be glued with CPVC primer, available at any hardware store. Primers will come in cans and have their own applicator brush built into the cover. At the same time, coat the inside of the coupling joint with CPVC primer, where the end is to be inserted.

Cover both the end and the inside coupling to be joined with CPVC glue. Be liberal with the glue application, and make sure there are no dry spots. The glue is found at hardware stores, and will also have its own applicator built into the cover.

Push the end of the pipe into the coupling immediately after the glue has been applied, then slightly twist the pipe to ensure that all sides of the pipe inside the coupling make a solid and firm connection. Repeat this process with as many pipes and couplings that you have.

Tips & Warnings

  • Always work with CPVC primer and glue in a well ventilated area.

References

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