Grundfos 99311107 CM Series Compact Multi-Stage Centrifugal Pump, 1-1/2 in NPT Inlet x 1-1/2 in NPT Outlet, 7-1/2 hp Power Rating, 208 to 230/440 to 480 V, 3 ph, 316 Stainless Steel, 3540 to 3550 rpm Motor

The Grundfos CM pump has been created with compactness, flexibility and reliability as its central features. This horizontal multi-stage close-coupled pump is a compact, reliable and quiet pump designed to work in a variety of applications. CM pumps are fitted with mains-operated motors. A Grundfos engineered mechanical shaft seal has been designed to eliminate industry-wide problems with shaft seals sticking where SIC-SIC seal faces are used. The solution builds on both the implementation of a rotation stop on the stationary ring and different surface finishing on both the stationary and rotating rings.