What is the difference between PVC and cPVC?

Answer 1

Chlorinated Poly (Vinyl Chloride) (CPVC) is a thermoplastic pipe. CPVC piping which is suitable for hot and cold water distribution has a 400 psi pressure rating at room temperature, and a 100 psi pressure rating at 180 F.

PVC pipe cannot meet the high temperatures that CPVC pipe can. PVC corrosion resistant pressure pipe, IPS sizes 1/8" through 24", is ideal for use in applications with temperatures up to and including 140°F.

Answer 2

Polyvinyl chloride, (IUPAC Poly(chloroethanediyl)) commonly abbreviated PVC, is the third most widely used thermoplastic polymer after polyethylene and polypropylene.

Chlorinated polyvinyl chloride (CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride

Answer 3

PVC pipe is usually the term for PVC pressure pipe. In small sizes, it is usually white in color. If suitable for potable water, it will be marked with "NSF" which means that it has been tested for potability and approved by the National Sanitation Foundation, headquarted in Ann Arbor, MI. and will have a pressure rating printed on the pipe. Larger sizes used for main lines may be white or blue, with the blue color signifying the pipe is made to AWWA C-900 standards, a higher pressure rating than SDR or Sched 40 ratings. Conduit is the term applied to PVC pipe made for electical wiring containment. It is usually in a gray color and should be approved by Underwriters Laboratories (UL mark) for the intended application. Conduit is also used for communication wiring. Gray conduit is not rated for pressure pipe applications and may not be suitable for potable water use. Stabilizers and other ingredients used in conduit PVC may be toxic; conduit PVC is not held to the same drinking water standards as NSF marked pipe and should not be used in potable water systems.

Answer 4

PVC is used in most applications including pressure situations. it is solid and has a larger join area to maximise contact.

DWV is used in most waste, gravity fed and non pressure applications. it is foam core, not solid so wont stand up as well in high pressure situations.

Answer 5

You can use CPVC to plumb your water supply instead of copper pipe.

PVC is suitable for drains or non-potable water since it releases chemicals which are harmful for humans to consume.