Specifications Overview:
The document provides technical specifications for a series of models labeled 65/2 through 65/6, operating at 50 Hz. Key dimensions and parameters are listed for each model, including measurements in millimeters for various components such as diameter (Ød), height (h1, h2), and other structural dimensions.

Electrical Specifications:
The models operate at 400V with three-phase power. The power output is specified in kilowatts (kW) and horsepower (HP) for each model, with corresponding amperage (A) at 50 Hz.

Hydraulic Features:
The document outlines hydraulic characteristics in compliance with UNI EN ISO 9906-A standards. Flow rates are provided in U.S. gallons per minute (U.S.g.p.m.), cubic meters per hour (m3/h), and liters per minute (l/min), with corresponding head (H) in meters.

Performance Data:
Performance metrics are detailed for each model, showing power input (P1) and output (P2) across various flow rates. The data is presented in a tabular format, indicating efficiency and operational capacity at different levels of demand.