Why are flexible gas connectors used in installations?

Flexible gas connectors are specifically designed to allow for slight movements of appliances, accommodating thermal expansion, vibrations, and minor shifts in positioning without applying stress to the fittings. This design feature helps to maintain the integrity of the gas supply system by preventing undue strain on the connections, which could lead to damage or leaks over time.

Using flexible connectors enhances the safety and durability of gas installations by providing a more forgiving connection that can adjust to changes in the environment or appliance positioning, which is particularly important in areas where appliances might experience movement.

While some of the other options touch on important aspects of gas installations, they do not highlight the primary function of flexible gas connectors. For instance, while it is true that they can aid in disconnection, that is not their main purpose. Similarly, they play a role in promoting safe connections but do not specifically prevent gas leaks on their own, and they do not increase gas pressure, which is determined by the system design and gas supply.