Drainage
»What pumps are suitable for drainage?«
Drainage pumps: Helpers ready for work
Water in the basement? Or do you simply want to transfer clean or murky water? No problem! The new OASE ProMax ClearDrain - submersible clean water pumps and the OASE ProMax MudDrain submersible dirty water pumps, with their generously-sized motors, are available for immediate use in five capacity levels. With the highly dynamic pumps of up to 30,000 litres per hour, water can be reliably pumped out.
Submersible clean water pumps
Always ready for work!
Whether as a reliable rescuer in need when water gets into the basement, or as a helper always ready to work – when pumping out or transferring clean or murky water, the new OASE ProMax ClearDrain submersible clean water pumps are always well equipped for every application. The four capacity classes, 6000, 7000, 11000 and 14000 litres per hour are immediately ready for implementation with shallow-priming to a wipe-dry residual water level of just one millimetre.
Submersible dirty water pumps:
For coarse contamination
OASE ProMax MudDrain pumps work reliably pump contaminated water out of excavation pits, shafts or pools and are designed as valuable helpers precisely for these challenging tasks. The powerful and robust OASE ProMax MudDrain pumps with delivery rates between 6000 and more than 30000 litres per hour, reliably pump polluted water with contamination particles to a diameter of 40 mm.
Submersible dirty water pumps & construction pumps
For coarse contamination
Whether contaminated water must be pumped out of construction pits, shafts or pools – the OASE ProMax MudDrain pumps work reliably and are designed as valuable helpers precisely for these challenging tasks. The powerful and robust OASE ProMax MudDrain pumps with delivery rates up to 30000 litres per hour, reliably pump polluted water with contamination particles to a diameter of 40 mm.
Specialised information for upcoming professionals
Pump performance curve or capacity diagram
- Shows the relationship of delivery rate Q (litres per hour) to delivery head H (in meters). In this regard 10 m delivery head also corresponds to 1 bar. When the performance curve reaches the maximum delivery head, the delivery head goes to 0. When the delivery head goes to 0 the pump reaches the maximum delivery capacity.
- The actual operating point in the system can be determined with the aid of the performance curve.
Pressure losses of lines or pipe friction losses
- The pressure losses per meter of line length depend on the delivery capacity.
Displacement of contamination particles
- The smallest cross section determines the actual possible particle displacement.
- Pay attention to hose and couplings.
The operating point
- Shows the actual delivery capacity with consideration of the complete installation. This is where the vertical intake height that must be overcome, friction losses in the lines, direction changes, cross-section changes, fittings, etc. are determined and are identified as required pressure demands in mwc (meters water column) or bar. This means that if the entire loss, for example, is 4 mwc*, the actual delivery capacity of the system is 4000 litres* per hour.
*Sample values
Tips & tricks
Use drainage pumps correctly
- Drainage pumps are real powerhouses that pump the greatest possible amount of water in the shortest possible time, but in the process also overcoming customary intake heights. This means that the pumps are designed for intermittent operation and always start up only when the sensor or the float activates the pump. If you are looking for pumps for permanent circulation or water movement, please choose the suitable model from our assortment of filter and watercourse pumps or fountain pumps.
Optimally utilise the delivery capacity of the drainage pump
- The larger the hose diameter, the better chance you can achieve the greatest possible delivery capacity.
- Also pay particular attention to the cross sections of couplings, connection pieces, valves or fittings. The smallest free cross section in the entire line system has the deciding influence on the undesired reduction of delivery capacity.
Cable protection
- Always use the handle to carry the pump.
- Fasten a rope on the handle when you lower the pump into deeper shafts.
Is a non-return valve or similar device part of your installation?
- Unlike water, air can be compressed. Consequently, when starting up, ensure correct ventilation in the line area between pump and valve.
- The more contaminated the water, the more frequently the valve can be impaired in its function. You should check all valves at regular intervals.