|All air duct installations for heating, cooling or ventilation areattached to mechanical equipment containing a fan or blower.
Vibrations, noises and rattles resulting from operation of thefan or blower are transmitted into the metal ducts which carrythe noises throughout the system.
In order to isolate the vibration and noises to the source, an air- tight flexible joint, consisting of a fabric which is attachedto sheet metal on both side, must be inserted between theequipment and the ductwork.
This vibration isolator is calleda "Flexible Duct Connector".
All Duro Dyne Flexible Duct Connector Products are suitablefor pressures of -10 to +15 wg.
Duro Dyne's standard ‘singlefold’ metal to fabric grip has been tested by an independenttesting laboratory to withstand a negative pressure of-10’’WC and a positive pressure of +17.25’’ WCwith no tearing or visible separation.