Grundfos Horizontal Multistage Pressure Pump CM (Centrifugal Modular) has compactness and modularity as two of its central features, making numerous configurations possible. The pump is composed of a Grundfos Horizontal Multistage Pressure Pump is a compact, reliable, horizontal, multistage, end-suction centrifugal pump with axial suction port and radial discharge port. The pump is self-priming and can create a suction lift of up to 4 m metres. Pump materials in contact with the liquid are in stainless steel. The mechanical shaft seal is a special designed, unbalanced O-ring seal. Pipework connection is via internal Whitworth pipe threads, Rp (ISO7/1). The pump is fitted with a 1-phase, foot-mounted, fan-cooled asynchronous motor.