What pressure rating is typically required for PEX tubing in plumbing?

PEX tubing is commonly rated for various pressures depending on the temperature of the water being transported. In the case of PEX, the pressure rating indicates the maximum pressure the tubing can safely handle at specific temperatures.

When considering the right rating for PEX, it's important to regard not only the pressure but also the temperature. The typical requirement of 80 psi at 200°F reflects the balance between pressure and temperature that PEX can withstand without failing. This makes it suitable for high-temperature water applications, commonly encountered in many plumbing systems.

Choosing this pressure rating ensures that the PEX tubing maintains its integrity and functionality under normal operating conditions typically expected in residential and commercial plumbing systems. Understanding these ratings helps plumbers ensure longevity and reliability in their installations, especially where hot water supply is concerned.