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N, N4 |
End-Suction Centrifugal Pumps
standardizated EN 733 - DIN 24255 |
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Construction |
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Single-stage end-suction centrifugal pumps, with
bearing bracket.
Nominal duty points and main dimensions in accordance with EN 733 (DIN 24255).
Back Pull-Out construction, for simple and quick dismantling and reassembly.
Rated speed of rotation (50 Hz):
N = 2900 1/min.
N4 = 1450 1/min.
Connections: PN 10 flanges UNI 2236, UNI 2237.
| Counter-flanges (on request) |
| Sizes |
Flanges |
| from 32-160 to 50-250 |
Screwed flanges PN 16 UNI 2247 |
| from 65-125 to 150-400 |
Flanges for welding
PN 10 UNI 2277, UNI 2278 |
Shaft sealing
– Standardized mechanical seal in accordance with ISO 3069.
– Stuffing box seal (on request). |
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Applications |
-For clean liquids, without abrasives, which are
non-aggressive for the pump materials (contents of solids up to 0.2%).
-For water supply.
-For heating, air conditioning, cooling and circulation plants.
-For civil and industrial applications and for agriculture.
-For irrigation. |
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Operating conditions |
Liquid temperature up to 90° C.
Ambient temperature up to 40° C.
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar.
Maximum permissible rotation speed: see table below. |
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Pump-Motor unit |
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N,N4 pump connected to a standard electric motor in
B3 construction form (IEC 72), IP 55 protection, three-phase 400 V , 50 Hz by
means of a base plate, driven by a flexible coupling and with coupling
protection. |
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Special features on request |
- Extra support foot for bearing housing.
- Special mechanical seal.
- Chrome-nickel steel AISI 316 pump-shaft.
- Higher liquid or room temperatures.
- Other motor protection..
- Motor for other voltage.
- Frequency 60 Hz (as per 60 Hz data sheet). |
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Warranty |
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One year (as per our general sales conditions). |
