The document describes the features of the high-pressure centrifugal pump CR 15-12 A-F-A-E-HQQE produced by Hartmann Elektrotechnik GmbH. The pump is vertically installed and has suction and pressure ports of the same size (inline configuration). The pump hydraulic components consist of a base with electrophoretic coating, a corrosion-resistant head, and stainless steel impeller sets with floating Teflon seals. The base and head are connected by bolts and a stainless steel pump casing. The motor shaft and pump shaft are connected by a balanced shell-type coupling. The pump is equipped with a service-friendly replaceable high-wear suspension ring seal, and for motors with a rated power of 11 kW and above, a dismantling coupling is provided. The motor is an externally cooled 3-pole Grundfos motor, with high efficiency class EFF1, and power and main dimensions according to DIN/IEC standards. Motors with a power of 3 kW and above are equipped with a built-in thermistor (PTC) according to DIN 44 082.
This document provides technical data for the Grundfos CR 15-12 A-F-A-E-HQQE, a vertical, self-priming high-pressure centrifugal pump with opposing suction and discharge nozzles of the same nominal size. The pump features a Grundfos electric motor with EFF1 efficiency class and includes a service-friendly cartridge mechanical seal made of SiC/SiC. The pump housing is made of gray cast iron (EN-JL1030), while the impeller is made of stainless steel (DIN 1.4301 / AISI 304). This manual is written in German.
| Pump speed | 2924 rpm |
|---|---|
| Nominal size | DN 50 |
| Nominal pressure | PN 25 |
| Motor rated power | 11 kW |
| Supply voltage | 3 x 380-415 V / 660-690 V |
| Supply frequency | 50 Hz |
| Impeller material | Stainless steel DIN 1.4301 |
| Maximum operating temperature | 120 °C |
| Shaft seal type | HQQE |
The medium temperature range is from -20 °C to 120 °C.
The nominal pressure is PN 25.