Atlas Copco Wellpoint Dewatering Pump WEL Range
The WEL range of fully automatic, rapid self-priming pumps is designed for wellpoint applications with a high flow rate. The WEL PST model, a high-performance unit, is suitable for heavy applications where it needs to work 24 hours per day, with a highly efficient design that guarantees fuel savings.
The WEL ECO is capable of drawing significant quantities of air and maintaining a wellpoint system under vacuum, or draining an excavation, thanks to the semi-open impeller, which also makes it suitable for pumping liquids with solids in suspension.
The automatic WEL TANK range is suitable for applications with changing ground water level and flow requirements. Being electric driven, it is very silent, energy efficient and suitable to work in residential areas.
Wellpoint Applications
The WEL range is the most efficient system for pumping groundwater where air is present and being able to manage large field areas. The groundwater pick level is dynamically balanced to guarantee construction operations.
Dewatering in construction
A wellpoint system of dewatering is regularly used when the groundwater level is close to the surface and the pump must handle a high percentage of air within the water that is drawn in from the ground material. It is the best choice for ground level reduction and it is used mostly before excavation for footings. Skyscrapers, underground railways, roads...there are many applications.
Pipeline on shore – oil and gas
Pipelines used to transport crude oil or natural gas must be dewatered to guarantee the quality of the hydrocarbons, prevent the formation of hydrates and protect the pipe from internal corrosion.
Polluted soil remediation
During sanitation works, a number of preparatory operations are required, including pipeline dewatering and drying, and removal of the groundwater to assure the terrain.
Tunneling
Groundwater is often an issue for tunneling, and dewatering is needed to allow excavation. In this case, a wellpoint system is the best choice to prevent consistent water leakage into the site. These pumps can control the groundwater level and handle both air and water.
Technical Data
Specifications | WEL PST 100 | WEL ECO 4-250 | WEL ECO 6 | WEL ECO 6-250 | WEL Tank | |
Max. head | m | 20 | 32 | 26 | 28 | 24 |
Max.capacity | m³/h | 100 | 180 | 300 | 340 | 137+137 (274) |
Nominal Air capacity | m³/h | - | 75 | 105+105 (210) | ||
Suction / discharge size | in | 6 | 4 | 6 | 4 or 6 | |
Max. solids handling | mm | - | 50 | 76 | - | |
Best efficiency point | % | 93 | 65 | 62 | 90 | |
Max. absorbed power | kW | 5,5 | 13,2 | 14 | 19 | 5,6 + 5.6 (11.2) |
Version | Canopy | Open frame | ||||
Engine | ||||||
Egine Emission | EU | Stage 5 | - | |||
LRC | T3 | T2-T3 | - | T2-T3 | - | |
Max. operating speed | rpm | 2000 | 1800 | 1450 (50Hz) | ||
Max. fuel autonomy | h | 120 | 53 | - | ||
Weight and dimensions | ||||||
Weight | kg | 1590 | 960 | 1060 | 900 | |
Width | mm | 1100 | 995 | 1370 | ||
Length | mm | 2200 | 1950 | 2115 | 1900 | |
Height | mm | 1550 | 1520 | 1850 |