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NKM-G 150 – horizontal pump DIN-EN 733, DN 150

Standardized single-stage pump to DIN-EN 733 in monobloc design. 4-pole motor (1 450 rpm), DN discharge 150 / DN suction 200. Flow rate up to 330 m³/h, head up to 13 m, motor 11 kW. GG25 cast iron, AISI 304 shaft. PN 10 DIN 2532 flanges.

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Product description

NKM-G 150 is a standardized horizontal single-stage pump in accordance with DIN-EN 733, in a monobloc design with a 4-pole motor (1,450 rpm). Nominal discharge nozzle diameter DN 150, suction nozzle diameter DN 200. Flange connection PN 10 according to DIN 2532 (unlike the smaller models, which have PN 16).

Volute casing made of GG25 cast iron (UNI ISO 185), shaft made of AISI 304 stainless steel. Impeller made of GG25 cast iron, dynamically balanced. Carbon/silicon carbide mechanical seal with EPDM O-rings in accordance with DIN 24960.

Totally enclosed, fan-cooled asynchronous motor. Protection rating IP 55, insulation class F. Power supply 400 V. Fluid temperature -10 °C to +140 °C, max. operating pressure 10 bar (DN 200 suction).

NKM-G 150 is the largest model in the entire NKM-G range. With DN 150/200 connections, it delivers maximum flow rates at very low flow velocities in the piping. It is supplied as the only model with a Ø 218 impeller and an 11 kW motor.

Main technical specifications

ParameterValue
Model rangeNKM-G 150 (SACI pumps)
StandardDIN-EN 733 (ex DIN 24255)
DesignMonobloc with flexible coupling
Number of poles4 poles (1,450 rpm)
DN discharge / suction150 / 200
Flow rate range Qup to 330 m³/h
Head range Hup to 13 m
Motor power P211 kW
Power supply400 V
Pumped fluid temperature-10 °C to +140 °C
Max. ambient temperature40 °C
Max. operating pressure10 bar
FlangesPN 10 DIN 2532
Motor protection ratingIP 55
Insulation classF (155 °C)
Casing materialGG25 cast iron (UNI ISO 185)
Impeller materialGG25 cast iron (bronze on request)
Shaft materialAISI 304 stainless steel
Mechanical sealCarbon/silicon carbide, EPDM, DIN 24960

Available model

ModelImpeller ØPower P2Power supply
NKM-G 150-200/218Ø 21811 kW400 V

Contact us with your required Q and H values, and we will check whether this model matches your duty point.

Applications

  • Water supply – main distribution networks, drinking water transmission mains.
  • Industrial piping systems – high-volume cooling circuits, process systems.
  • Heating for large buildings – circulation in industrial HVAC systems.
  • Agriculture – irrigation of large areas, pumping and drainage stations.
  • Municipal water management – pumping and circulation in water utility facilities.

Main advantages

  • DIN-EN 733 – standardized dimensions, interchangeable with products from other manufacturers.
  • Largest DN in the NKM-G range – DN 150/200 for maximum flow rates.
  • 4-pole motor (1 450 rpm) – quieter operation, less wear, longer service life.
  • Monobloc design – compact installation without a baseplate.
  • Flow rate up to 330 m³/h – high-volume pumping.
  • Bronze impeller available on request – for drinking water and the food industry.

Optional accessories

  • Bronze impeller GCuSn5Zn5Pb5 (version B)
  • Wear rings (Wr) – extended service life
  • Alternative mechanical seals – SiC/Viton, SiC/EPDM, bellows seals
  • O-rings: POWERseal EPDM

Why does the NKM-G 150 have PN 10 flanges instead of PN 16?

DN 150/200 uses PN 10 flanges in accordance with DIN 2532 (maximum operating pressure 10 bar). Smaller NKM-G models (DN 32–125) have PN 16 DIN 2533 flanges with a maximum pressure of 16 bar. This difference must be taken into account when sizing the piping.

Is a 2-pole version of the NKM-G 150 available?

No. In monobloc design, DN 150 is available only as the 4-pole NKM-G 150. For higher outputs or a 2-pole configuration, use the KDN 150 on a baseplate.

Why is there only 1 model?

The NKM-G 150 covers a specific duty point with DN 150/200 and an impeller Ø 218. For a wider range of head or flow rates in DN 150, consider the KDN 150 on a baseplate, which allows you to choose the motor and configuration.

What is the warranty?

NKM-G pumps come with a 24-month warranty.

Don't see the right gasket in our offer?

We can create the perfect seal for your needs, including non-standard sizes.

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