Description
The Pentair Jung Drenox 250/10 Automatic 230v (code 555-022, Jung N1031070) is the float-switched version of the Drenox 250/10 stainless steel submersible drainage pump. It has a 0.55 kW motor (0.9 kW absorbed) drawing 4.5 A on 230v single-phase mains and a 1¼” outlet, and passes solids up to 6 mm. Jung Pumpen’s table gives 210 litres per minute at 2 metres of head, 183 l/min at 3 m, 130 l/min at 5 m and 77 l/min at 7 m, with the curve ending at 9 m.
Choose it for a pit with heavy inflow after rain, or where the water has to be lifted several metres to a drain. The Drenox 250/10 Manual 230v is the same pump without a float, the Drenox 160/8 Automatic 230v suits lighter inflow, and the Drenox 350/12 Automatic 230v is the largest automatic model.
Like every Drenox, it is made entirely from AISI 304 stainless steel: pump housing, impeller and motor casing. The stainless steel shaft has ceramic inserts where the seal wears, the double seal is NBR rubber with a sand guard V-ring running in an oil chamber, and the ball bearings are self-lubricating. A heat exchange chamber cools the motor, so the pump can run for long periods without being fully submerged. The motor is IP68 with Class F insulation and runs at 2850 rpm. The pump is rated for immersion to 7 metres and water up to 40°C, and comes with 10 metres of H07RN-F cable and an elbow hose fitting for 32 mm hose on the 1¼” outlet.
The single-phase motor has a thermal overload built into the winding that resets automatically.
Features
- All AISI 304 stainless steel construction
- 0.55 kW motor, 230v, 4.5 A, built-in thermal overload
- About 180 l/min at 3 m and 130 l/min at 5 m; 6 mm free passage
- 1¼” outlet with elbow fitting for 32 mm hose
- 10 m of cable; 7 kg
Applications
- Rainwater sumps with heavy inflow
- Basement sumps lifting to a drain at ground level
- Automatic tank and basin emptying
Size the sump so the pump starts no more than 30 times an hour, and leave room for the float to move freely.
For clear water, partly dirty water and non-aggressive liquids up to 40°C, with solids no larger than 6 mm, such as silt and fine grit. It must never run completely dry, and it is not suitable for sewage, sludge, leaves or rag, or for flammable or dangerous liquids. For dirtier water with soft solids, see the Jung Omnia vortex pumps; for sewage, the Jung Nocchi Priox range.
The Drenox range
| Model | Supply | Operation | Motor P2 (kW) | Current (A) | Flow at 3 m (l/min) | Flow at 5 m (l/min) | Free passage (mm) | Pumps down to (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 80/7 Manual 110v | 110v | Manual | 0.2 | not published | 43 | 17 | 3 | 3 | 5.7 |
| 80/7 Automatic 110v | 110v | Float switch | 0.2 | not published | 43 | 17 | 3 | 100 (float) | 5.7 |
| 80/7 Manual 230v | 230v | Manual | 0.2 | 1.3 | 43 | 17 | 3 | 3 | 5.7 |
| 80/7 Automatic 230v | 230v | Float switch | 0.2 | 1.3 | 43 | 17 | 3 | 100 (float) | 5.7 |
| 160/8 Manual 230v | 230v | Manual | 0.4 | 2.4 | 103 | 60 | 6 | 35 | 6.5 |
| 160/8 Automatic 230v | 230v | Float switch | 0.4 | 2.4 | 103 | 60 | 6 | 107 (float) | 6.5 |
| 250/10 Manual 230v | 230v | Manual | 0.55 | 4.5 | 183 | 130 | 6 | 35 | 7.0 |
| 250/10 Automatic 230v | 230v | Float switch | 0.55 | 4.5 | 183 | 130 | 6 | 111 (float) | 7.0 |
| 350/12 Manual 230v | 230v | Manual | 0.8 | 5.1 | 250 | 200 | 6 | 35 | 8.5 |
| 350/12 Automatic 230v | 230v | Float switch | 0.8 | 5.1 | 250 | 200 | 6 | 111 (float) | 8.5 |
| 350/12 T Manual 400v | 400v 3-phase | Manual | 0.8 | 2.0 | 250 | 200 | 6 | 35 | 8.5 |
Flow is converted from Jung Pumpen’s published performance tables for the 230v and 400v pumps. Jung does not publish separate figures for the 110v 80/7. Automatic versions stop at the float switch-off level shown. See the Pentair Jung Drenox drainage pump range page for help choosing and answers to common questions.
Reviews
There are no reviews yet.