Reverse Circulation Canned Motor pumps

This type of pump has a structure suitable for handling saturated liquefied gases

With high vapor pressure such as ammonia and propylene

The pump features a circulation line on the back side of the motor body.

To prevent vaporization and gas accumulation in the motor, the circulation liquid is discharged pump chamber impeller outlet and enters front bearing housing and rotor chamber, and then passes through the reverse circulation piping before returning to the vapor zone in the suction tank, thereby forming a type of bypass piping.