what is the difference betveen CPVC and PVC pipes?

Question

plastic pipes used for drinking water distribution lines

Answer 1

Chlorinated Polyvinyl Chloride (CPVC) is a direct derivative of Polyvinyl Chloride (PVC) modified by the addition of chlorine (post chlorination). This produces a change in physical properties and altered chemical resistance, but primarily improves thermal properties for a higher heat handling capacity. So, generally you would use CPVC for hot water applications, and PVC for cold water applications.

Answer 2

You’re probably familiar with PVC pipe. It's the white plastic pipe commonly used for plumbing and drainage. PVC stands for polyvinyl chloride, and it’s become a common replacement for metal piping. PVC’s strength, durability, easy installation, and low cost have made it one of the most widely used plastics in the world.\
You can think of CPVC as PVC’s cousin. They are similar in many ways, but they shouldn't be used interchangeably. Both are made of the same basic elements with one distinguishing factor. CPVC is altered by a free radical chlorination reaction that effectively increases the chlorine content of the material. This difference in makeup allows CPVC to withstand a wider range of temperatures. This is why many building codes require the use of CPVC as opposed to PVC for use in hot water applications. The ASTM standard allows PVC to be used in applications not exceeding 140 degrees F. Temperatures over this can cause softening of the material and weakening of joints. CPVC on the other hand can handle temperatures up to 200 degrees F.

Answer 3

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RE:
what is the difference betveen CPVC and PVC pipes?
plastic pipes used for drinking water distribution lines

Answer 4

CPVC pipe differs from PVC pipe in that it withstands a wider degree of temperatures and contains more chlorine. PVC pipes can handle temperatures up to 140 degrees Fahrenheit according to ASTM standards. CPVC pipes can take temperatures up to 190 degrees Fahrenheit.

CPVC and PVC are made of similar materials, but CPVC has an additional free radical chlorination process that adds chlorine to the material and increases its resiliency in terms of conveying hot materials like water. Another difference is that CPVC is often not a pure white color like PVC. CPVC can be yellowish or off-white in appearance. Each type of piping needs a different type of cement since each bonds a bit differently. People use PVC for conveying cold water and gas or in drainage systems. CPVC carries water that is hotter, as well as a wide range of other materials that PVC cannot handle. As a result, CPVC tends to have a higher cost.

CPVC also has greater fire resistance than PVC. It does not tend to catch fire as easily as PVC, and it often extinguishes itself if it is not directly sitting in an open flame. Additionally, CPVC resists corrosion for longer periods of time, which is important in many industrial applications. CPVC stands for “chlorinated polyvinyl chloride,” and PVC is simply “polyvinyl chloride.”

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Answer 5

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

CPVC shares most of the features and properties of PVC. It is also readily workable, including machining, welding, and forming. Because of its excellent corrosion resistance at elevated temperatures, CPVC is ideally suited for self-supporting constructions where temperatures up to 200°F (93°C) are present. The ability to bend, shape, and weld CPVC enables its use in a wide variety of process applications including tanks, scrubbers, and ventilation systems. It exhibits excellent fire resistance, chemical resistance, and is readily available in sheets, rods, and tubing.

In use as plumbing materials, CPVC exhibits comparatively high impact and tensile strength and is non-toxic. CPVC, unlike PVC, exhibits excellent resistance to acids while sharing it's excellent resistance to bases.

Answer 6

pvc is eco friendly while cpvc is not

Answer 7

I'm thinking, if I remember right, one is thicker than the other or used for underground use.