Grundfos CRN Water Pressure Booster Pump - Vertical Multistage Pump
CRN 3-5 A-FGJ-A-V-HQQV
Vertical multistage centrifugal pump with suction and discharge ports on the same horizontal level (in-line).
The pump wetted parts are made of high-grade stainless steel. The cartridge shaft seal enhances machine reliability
and operational safety while simplifying maintenance. Power is transmitted via a sleeve coupling. Pipe connections
are realized through combined DIN-ANSI-JIS flanges. The pump is equipped with a 3-phase asynchronous motor with
a cooling fan and a foot-mounted frame.
Liquid Specifications
- Medium: Water
- Liquid temperature range: -20 … 90 °C
- Operating liquid temperature: 20 °C
- Density: 998.2 kg/m³
Technical Data
| Pump speed for rated data |
2873 rpm |
| Rated flow rate |
3 m³/h |
| Rated head |
23.4 m |
| Pump orientation |
Vertical |
| Shaft seal arrangement |
Single |
| Primary shaft seal |
HQQV |
| Shaft seal code |
HQQV |
| Approvals |
CE, EAC, UKCA, SEPRO, RCM |
| Drinking water approvals |
WRAS, ACS |
| Curve tolerance |
ISO9906:2012 3B |
Materials
| Type key, material code |
A |
| Type, rubber parts code (E=EPDM, V=FKM) |
V |
| Base material |
Stainless steel EN 1.4408 / AISI 316 |
| Impeller material |
Stainless steel EN 1.4401 / AISI 316 |
| Bearing material |
SIC |
Installation Specifications
| Maximum ambient temperature |
60 °C |
| Maximum operating pressure |
25 bar |
| Maximum pressure at rated temperature |
25 bar / 90 °C, 25 bar / -20 °C |
| Connection standard |
DIN / ANSI / JIS |
| Inlet size |
DN 25/32 |
| Suction port size |
1 1/4 inch |
| Outlet size |
DN 25/32 / 1 1/4 inch |
| Pressure rating for pipe connection |
PN 25 |
| Flange inlet rating |
300 lb |
| Motor flange size |
FT85 |
| Terminal box position |
6 |
Electrical Data
| Motor standard |
IEC |
| Motor type |
71A |
| Rated power - P2 |
0.37 kW |
| Power required by pump (P2) |
0.37 kW |
| Mains frequency |
50 Hz |
| Rated voltage |
3 x 220-240D/380-415Y V |
| Rated current |
1.74/1.00 A |
| Starting current |
490-530 % |
| Cos phi - Power factor |
0.80-0.70 |
| Rated speed |
2850-2880 rpm |
| IE efficiency class |
IE3 |
| Motor efficiency at full load |
73.8 % |
| Motor efficiency at 3/4 load |
79.0-76.5 % |
| Motor efficiency at 1/2 load |
75.5-71.5 % |
| Number of motor poles |
2 |
| Protection class (IEC 34-5) |
IP55 Dust/Jetting |
| Insulation class (IEC 85) |
F |
| Motor number |
85806102 |
Controller
| Terminal box position |
6 |
| Frequency converter |
None |
Other Specifications
| Minimum Efficiency Index (MEI ≥) |
0.70 |
| Net weight |
21.6 kg |
| Gross weight |
24.2 kg |
| Shipping volume |
0.054 m³ |