Calpeda MXSM 306CG Stainless Steel Multi-stage Submersible Pump for Rainwater Harvesting with Float Switch

Water passes through multiple stainless steel impellers arranged in stages for clean water transfer in the Calpeda MXSM 306CG. An integrated suction strainer prevents the entrance of solids with a diameter bigger than 2 mm, protecting the internal components from wear. The 5-inch close-coupled structure is compatible with wells having a 140 mm minimum internal diameter.

Mechanical features include a chrome-nickel stainless steel AISI 304 external jacket and delivery casing. Motor protection is provided by a double mechanical shaft seal with an oil chamber containing oil for food machinery and pharmaceutic use. The single-phase motor includes a capacitor incorporated in the float switch, a built-in thermal protector, and triple impregnation humidity-proof dry winding.

Designed for garden irrigation and civil water supply, the unit is suitable for rainwater harvesting and domestic clean water transfer from tanks. It handles clean cold water up to 35°C in continuous duty scenarios. The pump includes a float switch for automated operation and is intended for installation in the standing position.

Hydraulic output reaches a maximum flow rate of 75 L/min and a maximum head of 61 m. Operating on a 240v single-phase supply, the 0.9 kW motor draws a rated current of 6 Amps. Pumped liquid provides continuous motor cooling during operation, allowing safe operation even when the unit is only partially submerged.

FEATURES

• Constructed using chrome-nickel stainless steel AISI 304 for all components in contact with the clean liquid.
• Double mechanical shaft seal with oil chamber provides motor protection and lubrication for the shaft seal.
• Mechanical shaft seal lubrication is ensured by oil for food machinery and pharmaceutic use in the oil chamber.
• Internal cooling is achieved by fluid circulating between the motor jacket and outer shell during service.
• Base-integrated suction strainer restricts the entrance of solid particles to a maximum diameter of 2 mm.
• Automated service is enabled by an integrated float switch with an incorporated starting capacitor.
• Motor winding is a triple impregnation humidity-proof dry type constructed in accordance with EN 60335-2-41.
• Suitable for continuous duty operation with IPX8 protection for immersion up to 20 meters.