Grundfos centrifugal pump CRN 3-8

CRN 3-8 A-P-A-E-HQQE
Vertical, multistage centrifugal pump with inlet and outlet ports on same the level (inline). Pump materials in contact with the liquid are in high-grade stainless steel. A cartridge shaft seal ensures high reliability, safe handling, and easy access and service. Power transmission is via a rigid split coupling. Pipe connection is via PJE (Victaulic®) couplings.

The pump is fitted with a 3-phase, fan-cooled asynchronous motor.



Liquid:
Pumped liquid: Water
Liquid temperature range: -20 .. 120 °C
Selected liquid temperature: 20 °C
Density: 998.2 kg/m³


Technical:
Pump speed on which pump data are based: 2864 rpm
Rated flow: 3 m³/h
Rated head: 38.3 m
Pump orientation: Vertical
Shaft seal arrangement: Single
Code for shaft seal: HQQE
Approvals on nameplate: CE, EAC,ACS
Curve tolerance: ISO9906:2012 3B


Materials:
Base: Stainless steel
EN 1.4408
AISI 316
Impeller: Stainless steel
EN 1.4401
AISI 316
Bearing: SIC


Installation:
Maximum ambient temperature: 60 °C
Maximum operating pressure: 25 bar
Max pressure at stated temp: 25 bar / 120 °C
25 bar / -20 °C
Type of connection: PJE
Size of inlet connection: DN 32


Size of outlet connection: DN 32
Pressure rating for connection: PN 50
Flange size for motor: FT100


Electrical data:
Motor standard: IEC
Motor type: 80A
IE Efficiency class: IE3
Rated power - P2: 0.75 kW
Power (P2) required by pump: 0.75 kW
Mains frequency: 50 Hz
Rated voltage: 3 x 220-240D/380-415Y V
Rated current: 3.30/1.90 A
Starting current: 580-620 %
Cos phi - power factor: 0.81-0.71
Rated speed: 2840-2870 rpm
Efficiency: IE3 80,7%
Motor efficiency at full load: 80.7 %
Motor efficiency at 3/4 load: 82.7 %
Motor efficiency at 1/2 load: 81.7 %
Number of poles: 2
Enclosure class (IEC 34-5): 55 Dust/Jetting
Insulation class (IEC 85): F
Motor No: 85U05104


Controls:
Frequency converter: NONE