NK 65-250/251 AY1F2AESBQQEXW1 [97641757]
NK 65-250/251 AY1F2AESBQQEXW1 [97641757]
Grundfos
Precio habitual
€3.040,00 EUR
Precio habitual
€3.800,00 EUR
Precio de oferta
€3.040,00 EUR
Precio unitario
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por
Price excluding VAT
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Non-self-priming, single-stage, centrifugal pump designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, a radial discharge port and horizontal shaft. It is of the back pull-out design enabling removal of the motor, coupling, bearing bracket and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756.
Specs Table
| Controls: | |
| Frequency converter: | None |
| Pressure sensor: | N |
| Liquid: | |
| Pumped liquid: | Water |
| Liquid temperature range: | -25 .. 120 °C |
| Selected liquid temperature: | 20 °C |
| Density: | 998.2 kg/m³ |
| Technical: | |
| Pump speed on which pump data are based: | 2900 rpm |
| Rated flow: | 141.6 m³/h |
| Pump with motor (Yes/No): | N |
| Rated head: | 73.4 m |
| Actual impeller diameter: | 251 mm |
| Nominal impeller diameter: | 250 |
| Primary shaft seal: | BQQE |
| Code for shaft seal: | BQQE |
| Mechanical seal type: | Single |
| Curve tolerance: | ISO9906:2012 3B |
| Bearing design: | Standard |
| Min. pump speed: | 500 rpm |
| Max. pump speed: | 3700 rpm |
| Materials: | |
| Pump housing: | Cast iron |
| EN-GJL-250 | |
| ASTM class 35 | |
| Wear ring: | Brass |
| CuZn34Mn3AI2Fe1-C | |
| Impeller: | Cast iron |
| EN-GJL-200 | |
| ASTM class 30 | |
| Internal pump house coating: | CED |
| Shaft: | Stainless steel |
| EN 1.4301 | |
| AISI 304 | |
| Installation: | |
| Maximum operating pressure: | 16 bar |
| Pipe connection standard: | EN 1092-2 |
| Type of inlet connection: | DIN |
| Type of outlet connection: | DIN |
| Size of inlet connection: | DN 80 |
| Size of outlet connection: | DN 65 |
| Pressure rating for connection: | PN 16 |
| Grouting (Yes/No): | N |
| Others: | |
| Minimum efficiency index, MEI ≥: | 0.51 |
| Net weight: | 91.7 kg |
| Gross weight: | 101 kg |
| Shipping volume: | 0.383 m³ |
| Language on pump nameplate: | GB |
