Inertia bases are simple devices that offer effective results. However, there is some contention as to whether they are necessary in the modern day. 25 years ago, most pumps did not have Variable Speed Drives (VSDs), and as a result, inertia bases were essential in preventing vibration, noise and instability from occurring as pumps would suddenly go from stagnant, to fully operating – causing jarring noise and violent vibration in the pump’s surrounding area. This was especially problematic in raised plantrooms. 

With VSDs, however, pumps can gradually power up and power down, leading some to believe that inertia bases are no longer necessary, as there is no longer a sudden and drastic change in system torque. 

What Is an Inertia Base? 

Inertia bases are housings used to support and safeguard the machinery in an HVAC...