What type of coupling is advised for ASD systems to ensure proper function?

Flexible coupling disconnects are advised for Active Soil Depressurization (ASD) systems to ensure proper function because they allow for some movement and flexibility within the system. This is crucial because ASD systems can be subject to various forces and vibrations as they operate, and using a flexible coupling can help absorb these forces and reduce stress on the piping and connections. By accommodating shifts and expansions, flexible couplings help to prevent leaks and potential failures that could impair the system's effectiveness.

Additionally, flexible couplings can facilitate easier maintenance and installation, making it simpler to address any necessary adjustments or repairs without the risk of damaging rigid components. This adaptability is essential in environments where soil conditions and system dynamics may change over time, ensuring that the ASD system continues to operate efficiently and effectively in mitigating radon levels.