The main difference between CPVC and PVC is the range of temperatures each is capable of withstanding. CPVC can handle temperatures up to 200° Fahrenheit, while PVC peaks at 140° Fahrenheit. Above those temperatures, both CPVC and PVC will begin to soften, increasing the risk of joints and pipes failing, and therefore, failing of the plumbing system.
Commercial
Housing underground wires
Plumbing, drainage, and sewage infrastructure
Drinking and process water delivery and distribution
HVAC, fume, exhaust and ventilation duct
Agriculture, livestock and farm irrigation systems
Residential
Home irrigation and sprinkler systems
Home ventilation duct
Drinking water distribution
Residential plumbing, drainage, sewage infrastructure
Recreational
Makeshift tents and shaded seated areas
Frames for greenhouses, carports, and raised garden beds
DIY projects and crafts
CPVC and PVC Visual Similarities and Differences
PVC pipes are white or dark gray in color.
CPVC is off-white, light gray, or yellow in color.
Both pipe types have technical specifications printed on the side for easy verification.
Both pipe types are available in plain end and bell end.
Both come in Schedule 40 and Schedule 80 thickness.
Schedule 40 PVC also comes in Class 125 fittings.
PVC is available in 10 ft and 20 ft lengths.
CPVC is available in 10 ft and 20 ft lengths.
Certain diameters of PVC pipe and furniture PVC pipe are now available in 5 ft sections.
Both resist corrosion and degradation from chemicals classified as an acid, alkali, or inorganic material.
PVC maximum functional temperature is 140° Fahrenheit.
CPVC maximum functional temperature is 200° Fahrenheit.
The extra chlorine in CPVC increases chemical strength and helps prevent bacteria / biofilm formation within the pipes.
Both are impact-resistant and durable.
Both are safe for use with potable water when ANSI / NSF 61 certified.
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