Summary of Technical Data for Horizontal Single-Stage Pumps - SP150 Series

1. Overview

This document provides detailed performance data for the SP150 series of horizontal single-stage pumps, manufactured by Rovatti. The data includes pump head (H) in meters and power consumption (kW) at various flow rates and rotational speeds, for different impeller sizes.

2. Performance Parameters

• Flow Rate Units: Cubic meters per hour (m³/h), liters per second (l/s), and liters per minute (l/min).
• Rotational Speed: Given in revolutions per minute (1/min), ranging from approximately 1450 to 5000 rpm depending on pump model and configuration.
• Impeller Sizes: Multiple impeller diameters are listed, identified by letters (E, F, G, H, I, L, M, N, O), each corresponding to specific performance curves.
• Head (H): The pump head is provided in meters for each impeller size and speed combination.
• Power (kW): Power consumption values are given alongside head values, indicating the energy required at each operating point.

3. Data Structure and Interpretation

The data is organized in tabular form with columns representing different flow rates and rows representing impeller sizes and speeds. For each combination, the corresponding head and power values are provided. The tables allow selection of pump operating points based on required flow and head, facilitating pump sizing and energy consumption estimation.

4. Key Observations

• Higher impeller diameters generally correspond to higher head and power values at given speeds.
• Increasing rotational speed increases both head and power consumption, as expected for centrifugal pumps.
• The data includes both nominal (N) and high (H) operating points, indicating different performance regimes or pump configurations.
• Power values increase with flow rate and head, important for motor selection and energy budgeting.

5. Application and Recommendations

• Use the tables to select the appropriate impeller size and speed to meet specific flow and head requirements while optimizing power consumption.
• Consider the power ratings to ensure motor compatibility and avoid overload conditions.
• Refer to the performance curves for pump system design, ensuring operation within recommended ranges for efficiency and longevity.

6. Limitations

The document provides numerical data without graphical performance curves or detailed procedural instructions. Users should complement this data with manufacturer guidelines and system-specific calculations.

7. Additional Notes

The document references specific pump models such as S3P150K, S4P150K, S3P150KA, and S4P150KA, indicating variations in pump design or motor configurations. Flow rates and speeds are given in ranges to cover different operational scenarios.

Source: Rovatti - Horizontal single-stage pumps - SP150 series