Many of us have heard the term PVC in our everyday lives. But how many of you know the complete form of these 3 letters? What does CPVC mean?
In this article, we will talk more about plastic pipe selection between PVC and CPVC and how they overcome each other.
Excluding the negative environmental aspects of plastic, this was one of mankind's most versatile and maneuverable creations.
There are literally hundreds of different types of plastics, and they have been used in almost every aspect of our daily lives. Two of the most used plastic types are PVC and CPVC.
Plastic Pipe Selection: PVC
PVC means polyvinyl chloride that is used to create joints of different pieces of PVC pipe. PVC pipe fittings offer a final solution for connecting different parts for easy use and a high-performance object.
The main applications of these fittings include water transport in gardens, lawns, and homes. The material used to develop these fitting is tested and verified in certain standards as AISI 304.
After the test, these fittings are marked with certain information, such as the diameter of the connection, the registered trademark, the nominal pressure and the material used to the making.
PVC pipe fittings are available in gray color according to normal pipe manufacturing standards.
Plastic Pipe Selection: CPVC
The CPVC is chlorinated polyvinyl chloride and the CPVC tubes are capable of handling cold and hot water.
The best way to tell the difference between CPVC from PVC pipes is that the CPVC pipes are always yellow, also by their thinner walls and the fact that they are more flexible.
The CPVC pipe is an absolutely good product and can be an excellent option for water pipes, but you need to know a few things to get it right.
First, you need to be able to properly size the piping in your system, and you need to be able to efficiently design the piping distribution.
Plastic Pipe Selection: CPVC vs PVC
PVC is a thermoplastic polymer and is considered to be the third most commonly used plastic.
It is an extremely versatile and useful substance that normally occurs in two forms: rigid form, used in construction and for applications of profiles, such as doors and windows.
PVC can be converted into a softer and more flexible form by adding plasticizers. PVC, in this form, is used in pipes, insulation of electrical cables, such as imitation leather and the like.
It has many applications where you can replace the use of rubber.
CPVC is another type of plastic pipe modified from PVC. In this type of plastic, the chlorine content increases to 67 percent. The increase in chloride in the plastic leads to many new properties.
One of these important properties of chlorinated PVC is its higher heat resistance. However, this also makes the plastic less flexible and malleable.
Plastic Pipe Selection: Applications
PVC is very useful in our daily lives. One of the largest and most extensive applications of PVC is in the pipe industry.
The low cost and high resistance of PVC to chemicals and nature make it an ideal candidate for use in pipes.
Another important application of PVC is the production of electrical cables.
The PVC used in this process is usually plasticized. It has very good fire retardant properties, making it ideal for the cable industry.
In addition, PVC has many applications in the household, clothing and furniture industries and even in medical care.
On the other hand, CPVC finds its use in office buildings, swimming pools, and spas as well as in the health and hotel industry.
Plastic Pipe Selection: Chlorine Content
The main difference between PVC and CPVC is the greater amount of chlorine in the latter. The high chlorine content improves the heat resistance of the plastic by impacting its ductility.
This means that the CPVC has fewer applications than its non-chlorinated counterpart.
Plastic Pipe Selection: Resistance
PVC can work with liquids that are around 140 ° C, while the CPVC can handle liquids with very high pressure and high temperatures easily.
The CPVC can handle up to 200F, which can vary depending on the manufacturer and product.
This means that the most important application of chlorinated PVC is the transfer of really hot liquids. Both PVC and CPVC are extremely corrosion resistant in terms of time and nature.
They also offer good resistance to acids, alkalis and inorganic substances. In addition, they are impact resistant, durable and safe to use with potable water.
Plastic Pipe Selection: Cost
The CPVC is also more expensive than the usual PVC, so the CPVC is only used in a specific niche environment. These include use in office buildings and apartments as well as fire protection in condominiums.
The extra chlorine in the CPVC also prevents the growth of bacteria in the tubes.
Plastic Pipe Selection: Color
It is easy for a person skilled in his work to distinguish the type of PVC with which he works. The PVC is white or dark gray, while the CPVC is whitish, light gray or yellow.
The technical specifications of the tubes are also printed on the sides for easy identification.
Things to consider
Both PVC and CPVC can produce large amounts of toxic fumes when heated or burned. It is extremely important to take adequate precautions and work in well-ventilated areas.
Both PVC and CPVC require different primers and solvents for their use. This may also vary depending on the applications.
Which one is right for you?
Now that we have got to know the difference in nature and the properties of the two types of plastic, we now want to discuss which of the two is suitable for use.
The plastic pipe selection depends on two factors: the amount you are willing to pay and the intended use.
If you are looking for a material that can be used as a pipe to carry hot water, the CPVC is the best option.
If you are looking for just one material for your normal plumbing, PVC is more than enough.
Please visit our page on "PVC Tips and Tricks"