TMA Multistage Pump With Closed Impeller

Design Features

• The impellers are in series so that the head increases as the liquid being pumped is transferred from each impeller.
• The axial thrusts are balanced by balancing blades on the back of the impeller. The remaining thrust forces are absorbed by the heavy duty single ball bearing at the non-drive end and angular bearings at the drive end.
• For pump designs that have two external bearings, a pressure pipe is provided to relieve pressures in the seal area from the discharge side of the pump to the suction side.
• For the smaller TMA 31 & 32 series, a close-coupled design is available where space is limited. This design also eliminates any concerns for misalignment, which will enhance the pump’s performance and extend the overall life of the pump.