What is the function of a Demand Check Fitting in gas systems?

A Demand Check Fitting plays a crucial role in gas systems by facilitating service, testing, or replacement of key components such as pressure switches and mainline gauges. This fitting allows for maintenance activities without having to shut down the entire system or disrupt gas flow, which is vital for safety and operational efficiency.

By providing access points within the gas line, technicians can efficiently perform checks and replace equipment necessary for monitoring and controlling gas pressure, ensuring the integrity and functionality of the gas system. This capability is essential in maintaining continuous service and addressing issues proactively without significant downtime, which is a significant operational advantage in any gas system.