When connecting CSST to a gas supply line, what is crucial for a secure connection?

The importance of proper transition fittings and grounding when connecting CSST (Corrugated Stainless Steel Tubing) to a gas supply line lies in ensuring safety and reliability in gas delivery systems. Transition fittings provide a secure connection between the CSST and other types of gas pipe, which is essential to prevent leaks that could pose serious safety hazards. These fittings must be compatible and correctly installed to maintain the integrity of the gas system.

Grounding is particularly vital in preventing electrical hazards. CSST can be susceptible to damage from lightning strikes or electrical surges, which can create pinholes and other faults in the tubing if not properly grounded. By ensuring that the gas piping system is grounded, the risk of electrical interference or fire due to stray electrical currents is significantly reduced.

While options like using waterproof tape, regular maintenance, and pressure-testing before use are important practices in a gas system's overall safety and function, they do not specifically address the critical nature of those secure connections between different materials or the need for grounding, which are fundamental when working with CSST. Proper transition fittings coupled with grounding techniques are thus crucial for the safe operation of gas supply systems.