What is the maximum working pressure of 6 inch PVC Schedule 40 pipe?

The maximum working pressure for 6 inch PVC Schedule 40 pipe is indeed 160 psi. This value is derived from the material's specifications as defined by standards set forth by organizations such as ASTM (American Society for Testing and Materials). Schedule 40 PVC is a widely used piping material known for its durability and resistance to various chemicals, making it suitable for a variety of plumbing and industrial applications.

The pressure rating is determined by the pipe's diameter and wall thickness, along with the temperature of the fluid it is intended to convey. For 6 inch Schedule 40 PVC at room temperature, the safe maximum working pressure is 160 psi, which allows for reliable performance without the risk of failure under normal operating conditions. Understanding the pressure ratings is critical for plumbing contractors to ensure that they select the appropriate materials for their projects, preventing failures that could lead to costly repairs or safety hazards.