CR5-15 50HZ

·         Manufacturer: Grundfos

·         Application: Boiler feeding systems; Cooling and air-conditioning systems; Drinking Water Distribution; Industrial applications; Pressure boosting; Water supply systems

·         Rated flow:         5.8 m³/h

·         Rated head:        75.9 m

·         Impeller:              DIN W.-Nr. 1.4301

·         Rated flow:         5.8 m³/h

·         Rated head:        75.9 m

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CR5-15 50HZ

Vertical, multistage centrifugal pump with suction and discharge ports on same the level (in-line) enabling installation in a horizontal one-pipe system. The pump head and base are in cast iron – all other wetted parts are in stainless steel. A cartridge shaft seal ensures high reliability, safe handling and easy service and access. Power transmission is via a split coupling. Pipework connection is via oval flanges with internal Rp threads. The pump is fitted with a 3-phase, fan-cooled asynchronous motor.


Pumped liquid: Water

Liquid temperature range: -20 .. 120 °C

Liquid temp: 20 °C

Density: 998.2 kg/m³


Technical Specifications:

Speed for pump data:     2899 rpm

Rated flow: 5.8 m³/h

Rated head: 75.9 m

Shaft seal: HQQE

Approvals on nameplate: CE, TR

Curve tolerance: ISO 9906:1999 Annex A              

Materials for CR5-15 50HZ

Pump housing: 

Cast iron

Pump housing: 


Pump housing: 

ASTM A48-30 B


Stainless steel


DIN W.-Nr. 1.4301


AISI 304


Maximum ambient temperature: 60 °C

Max pressure at stated temp: 16 bar / 120 °C

Max pressure at stated temp: 16 bar / -20 °C

Flange standard: OVAL

Pipe connection: Rp 1 1/4

Flange size for motor: FT115

Electrical data for CR5-15 50HZ

Motor type


IE Efficiency class


Number of poles


Rated power – P2

2.2 kW


50 Hz

Rated voltage

3 x 380-415 D V

Rated current

4.45 A

Starting current

850-950 %