What should be checked inside the coupling before installation?

Before installing a coupling, it is crucial to check for dirt or foreign material inside the coupling. Ensuring that the coupling is clean is essential for several reasons. Debris can prevent a proper seal, which may lead to leaks or failures after installation. Contaminants can also interfere with the bonding or joining surfaces, affecting the overall integrity and strength of the connection. A clean coupling ensures that it can function as intended, providing a secure and effective joint in the distribution pipe system.

While other considerations such as torque settings, material compatibility, and checking for cracks or defects are important in their own right, they are secondary to ensuring that the coupling is free from contaminants at the time of installation. A coupling with dirt or foreign materials can compromise the installation process and lead to more serious issues down the line.