Alpha self-priming open impeller electric pump 02 ½ ra-t 400v kw 2.2

Overview

The Alpha Open Impeller Self-priming Electric Pump family is designed for applications where ease of priming, solid construction, and consistent performance over a wide range of use are needed. The construction with cast iron pump body, support and impeller makes these electric pumps suitable for domestic and garden, irrigation and transferring applications, as well as for technical and plant installations in the professional field.

Typical applications

• Transferring and transferring from tanks/tanks and filling tanks.
• Irrigation and water handling in domestic, agricultural and technical areas.
• Plant services where a self-priming solution with open impeller is required.

Suitable for fresh and clean, chemically and mechanically non-aggressive water; depending on the model, the open impeller can tolerate the presence of small impurities/solids up to 39 mm.

Advantages

• Self-priming: useful when the suction line requires quick suction restoration (depending on installation and model).
• Open impeller: practical solution to reduce sensitivity to small impurities compared to closed impellers (depending on model and liquid).
• Wide range of performance and power ratings to cover different application needs.
• Availability of multiple power supplies to suit civil and industrial systems.

Common range features

• Construction: cast iron pump body, support and impeller.
• Power supply: single-phase 230 V and three-phase 230/400 V or 400/690 V versions (depending on model).
• Performance: flow rate up to 3,200 l/min and head up to 40 m (depending on model).
• Solids passage: up to 39 mm (depending on model).
• Power: from 0.44 to 15 kW (depending on model).
• Connections: suction/ delivery from 1" to 4" (depending on model).
• Operation: 50 Hz - 2800 rpm; service S3 ≤ 60% (where applicable).

Performance curve.

Performance chart

Recommendations for selection and use

• Size the electric pump according to required flow rate and total head of the system (height differences + pressure drops).
• Check available power supply (230 V single-phase or three-phase) and installable power.
• Check suction/delivery diameters and liquid compatibility (fresh/clean non-aggressive water).
• If you foresee presence of impurities, evaluate the indicated solid passage for the chosen model.

Notes

• Performance and operating limits vary by model: always refer to the data sheet for the selected code.
• Installation and electrical/hydraulic connections must be carried out by qualified personnel and according to current regulations.
• For support in selection (flow rate/prevalence/connections/power supply), the Comid team can help you identify the most suitable solution.