When threading the couplings together, care must be taken to avoid what?

When threading couplings together, it is crucial to avoid cross threading because this can cause serious damage to the threads on both the coupling and the components they are connecting. Cross threading occurs when the threads of one part do not align properly with the threads of the other, leading to a misfit that may strip the threads or create gaps. This damage can compromise the integrity of the connection, leading to leaks or failures under pressure.

Ensuring that the threads are properly aligned before tightening will facilitate a smooth and secure connection while also preserving the longevity and functionality of the components involved. Other concerns, such as over-tightening, tension buildup, and misalignment, are important to consider as well, but cross threading specifically undermines the foundational aspect of how the two pieces connect, making it critical to avoid during the coupling process.