- BrandAtlas Copco
- The medium to be pumpedSludge, mud
- Typ av InstallationImmersion
- Type of pumpDrainage-fecal
- Type of driveElectric
The submersible drainage pump Atlas Copco WEDA 70 with the three - phase asynchronous electric motor with a short - circuited rotor and the built - in contactor with a rated power of 11.8 kW for pumping of silnozagryaznenny liquids with acidity of ph 5 - 8 at drainage of reservoirs, construction and service of dams, dams, locks, hydroelectric power station, etc. It is delivered in two options: with a low pressure (33 meters), but high efficiency (4400 liters of water a minute) and a high pressure (72 meters), but average productivity (1400 liters of water a minute). The metal diffuser at the bottom of the pump does not pass firm particles, 7 mm are larger. Under the order such options as the float - operated switch and zinc anodes are available.
TECHNICAL CHARACTERISTICS
Model (pressure) | WEDA 70L (low) |
Productivity, l/min | 4400 |
Pressure, m | 33 |
Rated power, kW | 11.8 |
Maximum power, kW | 14.0 |
Rated current (230 V), A | 40 |
Rated current (400 V), A | 23 |
Rated current (500 V), A | 18 |
Output branch pipe | 6" (4") |
Frequency of rotation of a shaft, rpm | 2900 |
Maximum size of firm particles, mm | 7 |
Weight, kg | 95 |
WORKMANSHIP OF THE PUMPS WEDA 70L/H
Execution options | WEDA 70L Low pressure / high efficiency WEDA 70H High pressure |
Electric motor | The three - phase asynchronous electric motor with a short - circuited rotor and the built - in contactor. |
Isolation | Class F ( + 155), IEC85 |
Protection of the engine | The thermal relay on each winding ( + 130 °C) |
Electric cable | Oilproof and wearproof rubber HO7RN - F cable |
for the single - phase engine | 4 x 10 mm ², 20 meters |
for the three - phase engine | 4 x 4 mm ², 20 meters |
Consolidation of a shaft | Double mechanical consolidations from an oil bathroom Primary consolidation: multilayered of carbide of tungsten and silicon Secondary consolidation: multilayered of an uglekeramika Delivery as in a set, and separately is possible |
Bearings | Top ― the single - row ball - bearing with C3 gap Lower ― the two - row ball - bearing with C3 gap |
Materials: | |
Cast details | Aluminum |
External case | Galvanized steel |
Shaft | Stainless steel |
Fastenings | Stainless steel |
Driving wheel | The white cast iron alloyed by chrome, Rc55 |
The worn - out details | Natural rubber |
Output branch pipes, connections | 6" under a hose for the WEDA70L model 6" under a carving (standard, BSP, NPT) for the WEDA70L model 4" under a hose or a carving (standard, BSP, NPT) for the WEDA70H model |
SERVICE CONDITIONS
- Pumping of liquids with impurity under trying conditions.
- The maximum depth of immersion of the pump in water of 20 m.
- The maximum temperature of the pumped - over liquid of + 40 °C.
- The maximum density of the pumped - over liquid of 1,100 kg/m ³.
- rn the pumped - over liquid 5 - 8.
ADVANTAGES
- Reliable design.
- Small weight and convenience of operation.
- Wearproof working chamber from chrome bearing steel and rubber.
- The adjustable wearing - out details.
- Full set of consolidations for easy and fast service.
- The built - in contactor for start DOL.
- Simple installation.
OPTIONS
- Float - operated switch.
- Automatic control of the NVB level.
- Zinc covering.
- Ekopsidny covering.
- Built - in Y/D actuator.