What Are The Differences Between PVC And CPVC Pipes? | Plumbing | LCETED -lceted LCETED INSTITUTE FOR CIVIL ENGINEERS

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Jun 6, 2021

What Are The Differences Between PVC And CPVC Pipes? | Plumbing | LCETED

 

 What Are The Differences Between

PVC And CPVC?


The main difference between CPVC and PVC is the temperature range that each is able to withstand.


CPVC can withstand temperatures up to 200 ° Fahrenheit,


PVC can withstand temperatures up to 140 ° Fahrenheit.


Differences Between  PVC And CPVC



Above these temperatures, CPVC and PVC will begin to weaken, increasing the risk of joint and pipe failure and, consequently, piping system failure.


Primers, solvent cement and bonding agents are different for PVC and CPVC because of the differences in the chemical composition of the material.


For example,

CPVC solvent types of cement must meet ASTM F493 specifications,

PVC solvent cement must meet ASTM D2564 specifications.


For this reason, CPVC and PVC pipes and fittings should not be used interchangeably with their solvents and bonding agents. In addition to meeting ASTM specifications, different solvent types of cement are required depending on the pipe size and intended application, so check the product containers to make sure you are using the right agent for the right application.

 

PVC available only in nominal pipe sizes, while CPVC comes in both nominal pipe sizes and copper pipe sizes.


CPVC has more flexibility than PVC and requires support over an interval of three feet to maintain its position.

 

We Have Listed Some Differences And Common Between PVC And CPVC Pipes

PVC

CPVC

PVC pipes are white or dark grey in colour.

CPVC is off-white, light grey, or yellow in colour.

PVC is available in 10 ft and 20 ft lengths.

CPVC is available in 10 ft and 20 ft lengths.

PVC maximum functional temperature is 140° Fahrenheit.

CPVC maximum functional temperature is 200° Fahrenheit.

It has good Corrosion resistant

It has good Corrosion resistant

Durable (the good life)

Durable (the good life)

PVC is less expensive

CPVC is slightly costlier than PVC

ASTM D2564 specifications

ASTM F493 specifications

Resist degradation from chemicals classified as an acid, alkali, or inorganic material.

Resist degradation from chemicals classified as an acid, alkali, or inorganic material.

Safe for use with potable water when ANSI / NSF 61 certified.

Safe for use with potable water when ANSI / NSF 61 certified.

PVC is a thermoplastic polymer

CPVC is a thermoplastic produced by chlorination of  PVC resin.

PVC is less ductile.

CPVC offers huge strength and less flexibility

PVC white used for cold water

CPVC is grey and used to be hot water.

PVC pipes may have the formation of bacteria in these pipes 

CPVC pipes have extra chlorine which does not allow the formation of bacteria in these pipes

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.



HOW TO CHOOSE BETWEEN PVC AND CPVC PIPES?


PVC PIPE

Budget-friendly, temperatures well below 140° under Fahrenheit are ideal for recreational applications, residential construction, DIY projects and cold water distribution.

 

CPVC PIPE

Superior resistance and performance, temperatures below 200° under Fahrenheit, very suitable for commercial applications, chemical handling and hot water distribution.


ALSO READ: What is CPVC PIPES | Chlorinated polyvinyl chloride pipes | Plumbing


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