Which type of connector helps in adapting to movement in gas appliance installation?

Flexible gas connectors are designed specifically to accommodate movement in gas appliance installations. This flexibility is essential as it allows for minor adjustments and compensates for any shifts or vibrations that may occur during operation or maintenance of the appliance.

Flexible connectors are particularly useful when connecting gas appliances that may need to be moved for servicing or that operate in environments where slight movements are expected, such as areas with heavy foot traffic or adjacent to other equipment. Their design typically includes a corrugated or woven structure, which provides both strength and flexibility.

In contrast, rigid connectors do not allow for movement and are best suited for fixed installations. Permanent fittings and traditional pipe fittings also do not accommodate movement, which can lead to stress on the connections and potential leaks in the gas system. Thus, the use of flexible gas connectors greatly enhances safety and reliability in gas appliance installations.