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Standardized single-stage pump to DIN-EN 733 in monoblock design. 4-pole motor (1,450 rpm), DN 125 discharge / DN 150 suction. Flow rate up to 420 m³/h, head up to 25 m, motors 15–22 kW. GG25 cast iron, AISI 304 shaft.
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Currently in stock:
When ordering a larger quantity, we will specify the delivery date.
We will specify the delivery date.
Larger quantity available for order until days
On order until days
Currently in stock:
When ordering a larger quantity, we will specify the delivery date.
We will specify the delivery date.
Larger quantity available for order until days
On order until days
Currently in stock:
When ordering a larger quantity, we will specify the delivery date.
We will specify the delivery date.
Larger quantity available for order until days
On order until days
-
NKM-G 125 is a standardized horizontal single-stage pump in accordance with DIN-EN 733, in a close-coupled design, with a 4-pole motor (1,450 rpm). Nominal discharge nozzle diameter DN 125, suction nozzle diameter DN 150. Flange connection PN 16 in accordance with DIN 2533.
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.
Enclosed asynchronous motor with external cooling. IP 55 protection rating, F insulation class. Power supply 400 V. Fluid temperature -10 °C to +140 °C, max. operating pressure 16 bar.
NKM-G 125 is designed for high-volume pumping in industrial and water utility applications. The large DN 125/150 sizes ensure low flow velocities and minimal pressure losses in the piping.
| Parameter | Value |
|---|---|
| Model series | NKM-G 125 (SACI pumps) |
| Standard | DIN-EN 733 (ex DIN 24255) |
| Design | close-coupled with flexible coupling |
| Number of poles | 4 poles (1,450 rpm) |
| DN discharge / suction | 125 / 150 |
| Flow rate range Q | up to 420 m³/h |
| Head range H | up to 25 m |
| Motor power P2 | 15–22 kW |
| Power supply | 400 V |
| Pumped fluid temperature | -10 °C to +140 °C |
| Max. ambient temperature | 40 °C |
| Max. operating pressure | 16 bar |
| Flanges | PN 16 DIN 2533 |
| Motor protection rating | IP 55 |
| Insulation class | F (155 °C) |
| Casing material | GG25 cast iron (UNI ISO 185) |
| Impeller material | GG25 cast iron (bronze on request) |
| Shaft material | AISI 304 stainless steel |
| Mechanical seal | carbon/silicon carbide, EPDM, DIN 24960 |
| Model | Impeller Ø | Power P2 | Power supply |
|---|---|---|---|
| NKM-G 125-250/243 | Ø 243 | 15 kW | 400 V |
| NKM-G 125-250/256 | Ø 256 | 18.5 kW | 400 V |
| NKM-G 125-250/266 | Ø 266 | 22 kW | 400 V |
For precise model selection based on the required flow rate and head, contact us with your Q and H requirements.
No. In monoblock design, DN 125 is available only as the 4-pole NKM-G 125. For higher outputs or special configurations with DN 125, use the KDN 125 mounted on a baseplate.
DN 125 with its specific 250 casing covers a relatively narrow range of operating points. The three models with impellers Ø 243–266 nevertheless offer a sufficient choice for most high-volume applications. For a wider range of head, consider the KDN 125.
Tell us the required flow rate (Q) and head (H) – we will recommend the model with the highest efficiency at your required operating point.
NKM-G pumps come with a 24-month warranty.
We can create the perfect seal for your needs, including non-standard sizes.
Standardized single-stage pump to DIN-EN 733, in monoblock design. 4-pole motor (1 450 rpm), DN 32 discharge / DN 50 suction. Flow rate up to 18 m³/h, head up to 16 m, motors 0.25–1.1 kW. GG25 cast iron, AISI 304 shaft.
Standardized single-stage pump compliant with DIN-EN 733, in monobloc design. 4-pole motor (1 450 rpm), DN 40 discharge / DN 65 suction. Flow rate up to 30 m³/h, head up to 23 m, motors 0.25–3 kW. GG25 cast iron, AISI 304 shaft.
Standardized single-stage pump to DIN-EN 733 in monoblock design. 4-pole motor (1 450 rpm), DN discharge 50 / DN suction 65. Flow rate up to 48 m³/h, head up to 24 m, motors 0,55–4 kW. GG25 cast iron, AISI 304 shaft.
Standardized single-stage pump to DIN-EN 733 in monoblock design. 4-pole motor (1 450 rpm), DN discharge 65 / DN suction 80. Flow rate up to 120 m³/h, head up to 34 m, motors 0,75–11 kW. GG25 cast iron, AISI 304 shaft.
Standardized single-stage pump to DIN EN 733 in monobloc design. 4-pole motor (1,450 rpm), DN 80 discharge / DN 100 suction. Flow rate up to 180 m³/h, head up to 41 m, motors 1.5–22 kW. GG25 cast iron, AISI 304 shaft.
Standardized single-stage DIN-EN 733 pump in monobloc design. 4-pole motor (1 450 rpm), DN 100 discharge / DN 125 suction. Flow rate up to 360 m³/h, head up to 36 m, motors 5,5–22 kW. GG25 cast iron, AISI 304 shaft.
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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