Grundfos - NAJBQ4 - NB Standard Block Pump

SKU: grundfos-najbq4

Grundfos - NAJBQ4 - NB Standard Block Pump

€21,821.60

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€21,821.60

The Grundfos NB 50-315/300 A-F2-A-BQQE is a high-efficiency standard block pump designed for reliable water transfer in various industrial and commercial applications. Featuring a robust cast iron housing and impeller, this 7.5 kW pump operates at 2900 rpm, delivering a rated flow of 36 m³/h and a head of 44.5 m. It is equipped with a durable Silicon Carbide/Silicon Carbide/EPDM (BQQE) shaft seal and an IE3 efficiency class motor. The pump has a DN 50 pipe connection with a PN 16 pressure rating and is suitable for liquid temperatures from -25°C to 120°C.
Grundfos
Grundfos is a Danish company, founded in 1945 by Poul Due Jensen in Bjerringbro, Denmark. The company has grown to become one of the world's leading pump manufacturers, with a global presence and a strong focus on innovation and sustainability. While primarily known for its industrial and domestic pumping solutions, its components are integral to various machinery. Grundfos specializes in advanced pump solutions for a wide range of applications, including water supply, wastewater, heating, ventilation, and air conditioning. Its product portfolio includes circulator pumps, submersible pumps, and dosing pumps, often incorporating intelligent controls and energy-efficient designs. These technologies are crucial for reliable fluid management in many systems. At Partao, the Grundfos catalog includes essential components such as Battery Terminals & Cables, Control Modules, Diagnostic Tools, Expansion Tanks, and Hydraulic Pumps. These parts support the maintenance and repair of systems utilizing Grundfos technology in agricultural and industrial settings. Over 22,183 genuine Grundfos spare parts are available at Partao. Customers frequently select Grundfos components for their proven reliability and efficiency in demanding environments. The brand's commitment to quality ensures that its pumps and related parts deliver consistent performance, reducing downtime and operational costs across various applications, from irrigation systems to industrial fluid transfer.

Part Numbers
98846126; 5712602300550; NAJBQ4; 0DT3644; A0112211; 7505388
Weight kg
104
Motor type
MGE132MB
Rated head m
44.5
Density kg m3
998.2
Rated power kw
7.5
Flange standard
EN 1092-2
Gross weight kg
114
Number of poles
2
Rated current a
14.5-12.0
Rated flow m3 h
36
Rated speed rpm
2900-2910
Rated voltage v
3 x 380-480
Impeller material
Cast iron (EN-GJL-200, ASTM A48-30 CL30B)
Mains frequency hz
50
Pipe connection dn
50
Pressure rating pn
16
Primary shaft seal
BQQE (Silicon Carbide/Silicon Carbide/EPDM)
Shipping volume m3
0.21
Enclosure class iec
IP55
Ie efficiency class
IE3
Impeller diameter mm
300
Insulation class iec
F
Pump housing material
Cast iron (EN-GJL-250, ASTM A48-40 CL35B)
Port to port length mm
340
Liquid temperature max c
120
Liquid temperature min c
-25
Ambient temperature max c
60
Ambient temperature min c
-20
Max operating pressure bar
16
Motor efficiency full load percent
89.2
Manufacturer
grundfos

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