This document is an installation and operation manual for GRUNDFOS pumps NB and NBG. It includes information on model identification, technical data, installation, maintenance, etc.
The document serves as a comprehensive guide for the installation and operation of GRUNDFOS NB and NBG pump models. It covers general information regarding model identification, delivery conditions, and lifting procedures to ensure safe handling during transport.
Detailed technical specifications are provided, including environmental limits, fluid temperature ranges (up to +140°C), maximum working pressure (1.6 MPa for most models), and electrical data requirements. The manual also outlines specific installation steps for pumps with or without motors, covering foundation preparation, connection methods, and vibration damping. This manual is written in Chinese.
| Maximum Ambient Temperature (EFF2 motor) | +40°C |
|---|---|
| Maximum Ambient Temperature (EFF1 motor) | +60°C |
| Fluid Temperature Range | -25°C to +140°C |
| Maximum Working Pressure (NB) | 1.6 MPa (16 bar) |
| Minimum Flow Rate | 10% of maximum flow |
No, for motors over 4 kW, the lifting lugs cannot be used to lift the entire pump assembly.
The fluid must be clean, light, non-explosive, and free of solid particles or fibers.