EMU: Contractor's Pumps

Types KS

The pumps of this series handle very muddy sandy water. They are robust, resistant against dry operation, easy to handle and require nearly no maintenance. Alternatively for single phase AC. or Three phase AC.
Installation stationary or portable.
All EMU contractor's pumps are equipped with two mechanical shaft seals which are independent of the direction of rotation and an intermediate oil chamber.

Standard design
The powerful pumps can be equipped with the EMUBIL pump car.








Sewage resistant design
For use in liquids with corrosive components
(e.g. basic sewage).
Casing parts and impeller made of cast iron.
(e.g. acid liquid)
Arailable in material 1.4581,
zinc-free-bronze and coatings
(e.g. abrasive liquid)
Arailable in Abrasit

Design with explosion-proof submersible motor
For application in areas where there is hazard of explosion.







Design with axial discharge piece
For application in narrow sumps and wells.

EMU: Jet Aerators For Cleaning Of Storm Water Retaining Basins

Jet Aeration System For Cleaning of Storm Water Retaining Basins

Long lasting rain falls and thaw periods supply storm water retaining basins with large quantities of mud and solids. The WILO jet aerotion system avoids that solids settle on the walls and at on the bootom of the basin and thus consequently cleans the stormwater retaining basin or the channels in the collector chamber.
By means of an air aspiration pipe and a specially designed system of nozzles and underpressure is poduced in the jet pipe. Consequence: The air drawn in is mixed with the water. The produced air-water mixtureis then put into the basin with high speed in horizontal direction. the cleaning process is started.

Advanteges:

• Low investment costs
• Installation possible in already existing basins
• Fully automatic operation
• No surges
• Continuos outflow of the mud load
• No Odorous annoyance by pre-aeration of the sewage
• No anaerobic processes
• Saving of energy cost due to intermittent service
• easy to handle
  

EMU: New Motor Range 10"

New Motor range 10" type NU 911 with internal active cooling and a power range (50Hz) of 75-225 kW.

A permanently driven impeller on the motor shaft leads the cooling liquid directly through the bearing and the winding. So the lost heat can be optimally absorbed and dissipated to the circulating pump liquid via the external shroud. Due to the innovative technology a considerably higher energy density can be achieved with reduced operating temperatures at the same time. in addition to that the small installation diameter leads to a reduction of the investment and construction costs of wells and water pumping stations.

• 2 and 4 pole available for different applications
• vertical and partly horizontal installation possible
• standart design of cast iron (GG)/ stainless steel 304
• corrosion-resistant material design of zinc free bronze/ stainless steel 316
• warm water design up to 70°C
• voltage: 200-1000 V; 50/60 Hz

Advantages:

• power increase up to 25%
• active, internal cooling system
• higher duty in small well diameters
• No external cooling shroud required
  

EMU: Pump for Muddy and Waste Water

FA/TS Design
Sewage resistant pumps with big ball passage, strainer and pump foot.
They handle water with coarse solids, are robust, resistant against dry operation, handy and require nearly no maintenance. Removable strainer if coarse particles are to be pumped.
For three phase A.C., if required in explosion- proof design
Installation stationary or portable.


Wet sump installation Motor cooled by the surrounding pumped liquid. Shaft sealing: 2 mechanical shaft seals made of highly wear-resistant silicon-carbide.








Design with explosion-proof submersible motor
For application in areas where there is hazard of explosion.
Shaft sealing:
EMU block seal or
2 mechanical shaft seals made of highly wear-resistant silicon-carbide.




For immerged and emerged operation Motor with oil-cooling. Shaft sealing: WILO block seal or 2 mechanical shaft seals made of highly wear-resistant silicon-carbide.

EMU: Removal Device

During static thickening of treated sludge sludge water will occur, which will have to be transported to the intake of the sewage treatment plant. A special sucking device will do this job. In this construction a submersible sewage pump is installed in the basin upside down by means of a lowering device in such a way that the sludge water can be sucked off during operation. As the water in the basin surrounds the motor of the pump it is always properly cooled. The position of the pump is adapted to the water level in the basin by means of the lowering device. An alternative to the installation with lowering device is to fix the pump with a pontoon on the water surface. This means that the pump automatically adapts to changing water levels and is always ready for operation. This system is also used in SBR-installations for removing clear water. After the sedimen-tation phase the clear water can be pumped off by using the system with pontoon. The removal of floating sludge on final clarification basins is a task that constantly occurs. By installing the lowering device at the scraper bridge the floating sludge can be sucked off and transported to the sludge treatment.

EMU: Submersible Pump

Economical Solutions

For Several decades WILO have been producing submersible pumps for water supply, lowering of water level and booster plants. These highly developed quality products make possible a maintenance-free application. They are a result of many years of experience and intensive development activities and have proved to be worthwhile under teh most difficult conditions.
Due to this comprehensive program of submersible pumps there is a variety of solutions for hydro-economics problems-in the municipal and industrial area.

Application
Besides their traditional applications submersible motor pumps are increasingly installed in sumps, collecting chambers, storage or intermediate reservoirs, lakes dams or rivers for:

• Supply of drinking industrial and emergency water
• As booster pumps in supply networks
• Water treatment plants
• Irrigation and sprinkling
• Circulating purpose in air conditions and industrial cycles
• Fire Fighting and sprinkler systems
• lowering and maintaining of the ground water level in mining and civil engineering
• Use of geothermic energy
  
• fountains and hydraulic organs
• Snow canons
• Off-shore-plants
  

EMU: Switch Gear and Control Panel

WILO EMU Anlagenbau plans, produces and assembles the electrical switch gears and control panels for our submersible clear water and sewage pumps for waterworks and sewage treatment palnts.
Product range:

• Low voltage distributor systems
• remote control and network technique
• control panels
• automatic emergency power control
• alarm systems
• process visualization devices

According to the principle all about water -everything from a single source. we also install our submersible clear water and sewage pumps. For deep wells we supply the necessary rising mains, well head covers, fittings and hydraulic accessories and install the pump. In waterworks and booster plants our mechanics execute the assembly of the complete machinery equipment ready for operation.