What connectors are specified to control noise and vibrations in metal ductwork?

Flex connectors are specifically designed to control noise and vibrations in metal ductwork. Their construction typically includes a flexible material that allows for movement and absorption of vibrations produced by the HVAC system. By providing a flexible joint, these connectors help mitigate sound transmission and mechanical stresses that can occur due to equipment operation, ensuring a quieter and more stable duct system.

In contrast, drive clips and riveted joints provide structural attachment and integrity to duct connections but do not offer the same level of vibration isolation. Drive clips are rigid and can transmit noise and vibration instead of dampening them. Riveted joints are permanent connections that stabilize ductwork but can amplify vibrations if not properly addressed. S connectors can change the direction of airflow but are not primarily focused on controlling noise and vibrations. Therefore, flex connectors are the most effective choice for this purpose.