Single-stage centrifugal pump as baseplate pump. With axial suction port and radial discharge port, for installation on a base. Pump with support foot and flanged bearing bracket, elastic spacer coupling, coupling guard and motor mounted to same baseplate.
IEC motor with 3 PTC thermistor sensors. Shaft sealing via non-cooled mechanical seal up to max. 120 °C. Spheroidal cast iron housing, stainless steel shaft, grey cast iron impeller (bronze impeller available at additional charge).
Operating Data
Fluid media: Water 100 %
Fluid temperature: 20.00 °C
Requested flow:
Requested head:
Min. fluid temperature: -20 °C
Max. fluid temperature: 120 °C
Min. ambient temperature: -15 °C
Max. ambient temperature: 40 °C
Maximum operating pressure: 16 bar
Minimum efficiency index (MEI): ≥ 0.4
Motor data
Motor efficiency class: IE3
Mains connection: 3~400V/50 Hz
Voltage tolerance: +-10 %
Rated power: 55 kW
Rated speed: 1,480 1/min
Rated current: 98.6 A
Power factor: 0.85
Motor efficiency 50%: 0.0 %
Motor efficiency 75%: 0.0 %
Motor efficiency 100%: 0.0 %
Insulation class: F
Protection class:
Motor protection: PTC integrated
Materials
Pump housing: EN-GJS-500-7
Impeller: 5.1301/EN-GJL-250
Shaft: 1.4028
Shaft seal: AQ1EGG
Installation dimensions
Pipe connection on the suction side: DN 300, PN 16
Pipe connection on the discharge side: DN 300, PN 16
Ordering information
Brand: Wilo
Product description: NLG 300/315-55/4
Net weight, approx.: 1,194 kg
Article number: 4461276
