July 2021

A double mechanical seal has a cavity between the inner and outer faces where the liquid resides. In its unpressurized form, this liquid acts as a buffer between the contents pumped by the equipment and the outer environment, whereas the pressurized form creates a barrier between the two.

Most sectors in the United States employ mechanical sealing solutions in their pumps, whereas a rare few use seal-less ones in their applications. This is because magnetic or seal-less pumps don’t quite require the same amount of power required by the more heavy-duty, sealed pumps.

Single and double mechanical seals come in several designs because they’re customized according to the specific applications within the industry that adopts them. Since mechanical seals serve such a wide range of sectors, they all have vastly different structures, designs, and features.