Centrifugal pumps
How do centrifugal pumps work?
Centrifugal pumps use centrifugal force to pump liquids. Inside the housing there is a paddle wheel that is set in rotation. The rotational momentum causes the liquid to pass from the suction pipe into the spiral-shaped pump housing and is conveyed to the pump outlet.
What are the advantages of centrifugal pumps?
- Pumping large quantities of liquids
- Reliable and robust pump technology for continuous use
- Durable pump components
- Design according to EN 733 possible
- High temperature resistance
- Pumping of small solids
In which applications are centrifugal pumps used?
Efficient water supply
Pedrollo centrifugal pumps are ideal for reliable, energy-efficient water supply in modern industrial buildings. With drives of energy efficiency class IE3, the entire building can be permanently and efficiently supplied with water.
Pumping contaminated water
Pedrollo centrifugal pumps can be designed with an open impeller construction to pump liquids with a high percentage of impurities without blockages. This makes the pumps ideal for the supply and discharge of water in car washes.
Supply of heating and cooling circuits
The processing industry depends on the smooth and safe functioning of heating and cooling systems in the production circuit. Pedrollo enables a comprehensive supply of heating or cooling water in temperature ranges from -10°C to +90°C with centrifugal pumps.
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Ateliers Ehrismann
Quality since 1923
Contact in Switzerland and Europe
Ateliers Ehrismann has been ensuring the highest manufacturing quality at its site in Switzerland since 1923. Together with our strong partner the AxFlow group of companies, we are represented not only in Switzerland but throughout Europe.
Individualization is our strength
Ateliers Ehrismann has one of the most modern workshops in the field of electrical engineering and metal construction. Customer orders can thus be designed to meet all individual requirements.
Certified several times
The outstanding manufacturing quality is certified several times. We can manufacture and repair process equipment, for complex and highly sensitive industrial applications. Our quality management continues to constantly optimize the processes in the areas of purchasing, manufacturing and service management in order to remain the first point of contact in Switzerland and Europe in the future.
FAQ`s
Frequently asked questions
Various Pedrollo submersible pumps are capable of handling solids with a diameter of up to 50 mm. This means that solids-laden liquids such as sewage and sludge can be discharged without any problems.
Standardised centrifugal pumps are generally not capable of pumping liquid from a dry suction line. However, special pump designs from Pedrollo are capable of venting the suction line and independently sucking in the lower-lying liquid.
Multistage centrifugal pumps basically work according to the same principle as single-stage centrifugal pumps: the rotation of the impeller creates a flow which is converted into pressure energy by means of diversion. After each stage, the flow is diverted again by guide wheels and fed to the next stage.