Submersible pump CALPEDA 6SDN 16/33 (18.5kw)

The powerful and reliable CALPEDA 6SDN 16/33 (18.5 kW) pump is designed for high-pressure water supply systems and for delivering large volumes of water over long distances. Thanks to the multistage hydraulic system of the 16-series, the model provides excellent performance with flow rates up to 25 m³/h.

The pump casing is made from AISI 304 stainless steel, while the shaft is constructed from AISI 316, a material highly resistant to aggressive environments. The design is engineered for heavy-duty conditions and continuous operation. The suction strainer prevents sand and solid particles from entering the hydraulic section, protecting the impellers from damage.

The three-phase motor is fully adapted for operation in large-diameter wells and supports up to 15 starts per hour.

Features of the 16/33 Model

▪️ High power: 18.5 kW — for high-pressure systems
▪️ Stainless-steel construction materials
▪️ Integrated sand-protection strainer
▪️ Supports frequency inverter operation
▪️ Horizontal installation allowed (with cooling sleeve)
▪️ Suitable for systems with frequent start/stop cycles

Application Areas

▪️ industrial pumping stations;
▪️ municipal water-supply networks;
▪️ long-distance irrigation pipelines;
▪️ fire-fighting systems;
▪️ engineering and construction facilities;
▪️ commercial and administrative buildings.

Operating Parameters

▪️ Water temperature: up to 25–35°C
▪️ Sand content: up to 150 g/m³
▪️ Full submersion — required