Pex pipe brittleness exposed: avoid disaster with these crucial facts
What To Know
- PEX pipe is a type of plastic piping made from polyethylene that has been cross-linked to create a stronger molecular structure.
- PEX pipe is designed to withstand a wide range of temperatures, but exposure to extreme heat or cold for prolonged periods can weaken the material.
- PEX pipe is highly durable and resistant to corrosion, making it a long-lasting option for plumbing systems.
PEX (cross-linked polyethylene) piping has gained immense popularity in the plumbing industry due to its durability, flexibility, and resistance to corrosion. However, concerns have been raised regarding the potential for PEX pipe to become brittle over time. This blog post aims to shed light on this matter, exploring whether PEX pipe does indeed get brittle and the factors that may influence its longevity.
What is PEX Pipe?
PEX pipe is a type of plastic piping made from polyethylene that has been cross-linked to create a stronger molecular structure. This cross-linking process improves the pipe’s resistance to heat, pressure, and chemicals. PEX pipe is commonly used in residential and commercial plumbing applications, including hot and cold water distribution, radiant floor heating, and hydronic systems.
Does PEX Pipe Get Brittle?
The answer is: No, PEX pipe does not typically get brittle.
PEX pipe is designed to be flexible and resistant to cracking, even under extreme temperatures. The cross-linking process creates a strong molecular structure that prevents the pipe from becoming brittle or shattering.
Factors Affecting PEX Pipe Longevity
While PEX pipe is generally durable, certain factors can affect its lifespan:
1. Exposure to Sunlight
Prolonged exposure to ultraviolet (UV) radiation from sunlight can degrade the outer layer of PEX pipe, making it more susceptible to damage. It is recommended to protect PEX pipe from direct sunlight by burying it underground or using insulation.
2. Extreme Temperatures
PEX pipe is designed to withstand a wide range of temperatures, but exposure to extreme heat or cold for prolonged periods can weaken the material. Avoid installing PEX pipe in areas where it may be subjected to freezing or boiling temperatures.
3. Chemical Exposure
Certain chemicals, such as chlorine and bleach, can damage PEX pipe over time. It is important to use compatible chemicals and avoid prolonged exposure to harsh substances.
4. Physical Stress
Excessive bending or kinking of PEX pipe can weaken the material and increase the risk of failure. Always follow proper installation guidelines to ensure that the pipe is not overstressed.
5. Installation Errors
Improper installation techniques, such as using incorrect fittings or not securing the pipe properly, can compromise the integrity of PEX pipe. Always hire a qualified plumber to ensure professional installation.
Advantages of PEX Pipe
Despite the potential factors affecting its longevity, PEX pipe offers several advantages:
1. Durability
PEX pipe is highly durable and resistant to corrosion, making it a long-lasting option for plumbing systems.
2. Flexibility
PEX pipe is flexible, making it easy to install and maneuver around obstacles.
3. Resistance to Freeze Damage
PEX pipe is less susceptible to freeze damage than other types of piping, as it can expand without bursting.
4. Chemical Resistance
PEX pipe is resistant to most chemicals commonly used in plumbing applications.
5. Cost-Effective
PEX pipe is generally more cost-effective than other types of piping, such as copper or galvanized steel.
Final Note: Dispelling the Myth
Contrary to popular belief, PEX pipe does not typically get brittle when properly installed and maintained. Its durability and resistance to cracking make it a reliable choice for plumbing systems. By following proper installation practices and avoiding prolonged exposure to extreme temperatures and chemicals, you can ensure the longevity of your PEX piping.
Questions We Hear a Lot
1. How long does PEX pipe last?
PEX pipe can last for 25 to 50 years or more when properly installed and maintained.
2. Can PEX pipe be used outdoors?
Yes, PEX pipe can be used outdoors, but it should be protected from direct sunlight to prevent UV damage.
3. What type of fittings are used with PEX pipe?
PEX pipe can be used with crimp, clamp, expansion, or push-fit fittings.
4. Is PEX pipe safe for drinking water?
Yes, PEX pipe is certified for use with drinking water and does not leach harmful chemicals.
5. Can I use PEX pipe for hot water?
Yes, PEX pipe is rated for use with hot water up to 180°F (82°C).
