Chlorinated Polyvinyl Chloride (CPVC) Pipes

There are three major types of plumbing pipe on the market today including: Polyvinyl Chloride (PVC), Chlorinated Polyvinyl Chloride (CPVC), and Acrylonitrile Butadiene Styrene (ABS). While Chlorinated Polyvinyl Chloride is not as popular as PVC or ABS, many industry professionals think that it probably should be.


Defining Chlorinated Polyvinyl Chloride (CPVC)

The technical definition of CPVC is a thermoplastic produced by the post chlorination of polyvinyl resin. CPVC is used in:

  • Construction

  • Industrial liquid handling applications

  • Fire suppression systems.

Why Chlorinated Polyvinyl Chloride (CPVC)?

CPVC piping systems are considered cost effective and environmentally friendly. Because CPVC can be easily shaped, bent, and welded, handling and installation is uncomplicated. In addition, CPVC:

  • Provides a long service life

  • Is highly corrosion resistant

  • Is recognized by all model-plumbing codes for potable (drinkable) hot and cold water distribution systems.

Why Choose Chlorinated Polyvinyl Chloride (CPVC) rather than Polyvinyl Chloride (PVC) Pipes?

Not to be confused with the more popular Polyvinyl Chloride, or PVC, CPVC has several additional characteristics, which according to some professionals, could warrant its superiority over PVC:

  • CPVC, more ductile than PVC, is considered as an excellent alternative to metal and many other types of pipes that may be susceptible to corrosion

  • CPVC piping has a 100 PSI (pounds per square inch) pressure rating at 180��F and a 400 PSI pressure rating at room temperature

  • CPVC is considered ideal for applications such as storage tanks, tank lining, and tower packing

  • CPVC is resistant to most everyday household chemicals

  • CPVC materials do not support combustion, making it an excellent alternative to copper pipes and steel pipes that are commonly used in fire sprinkler applications. CPVC fire sprinkler systems are approved for use in single-family dwellings, multifamily dwellings, and light hazard environments.

Purchasing Chlorinated Polyvinyl Chloride (CPVC) Products

Chlorinated Polyvinyl Chloride pipe, fittings, and tubings are manufactured by an endless number of companies. Therefore, the different types of CPVC may be limited to the way they are processed. Some may be processed with additives such as lubricants or pigments, while others may be processed with impact modifiers or various stabilizers.

Chlorinated Polyvinyl Chloride is available for purchase in rods, sheets, or tubing in various sizes and quantities. CPVC pipe for plumbing systems, for example, is typically manufactured in sizes ��" to 2" CTS (Copper Tube Size) dimensions.