The Challenge
Gruppo CAP, an Italian water utility, operates in an increasingly demanding environment shaped by:

• rising energy costs;
• increasingly ambitious environmental targets;
• aging infrastructure requiring modernization.

In pumping systems, energy consumption can account for up to 90% of total lifecycle costs. For this reason, energy
efficiency is not just a technical improvement, but a strategic priority.
The utility therefore needed a solution capable of:

• delivering measurable reductions in energy consumption;
• ensuring long-term reliability;
• being scalable across multiple installations.

The solution
To support the municipality in addressing efficiency, reliability, and scalability challenges, a collaboration was
built based on complementary expertise and a shared longterm vision.
In this context, the adoption of High Efficiency Systems (HES), now progressively installed on more than 60 wells,
represents a concrete outcome of this approach. Thanks to the ability to integrate technology with operational vision, Gruppo CAP was supported in developing an effective and scalable solution based on:

• International experience in the municipal sector, with solutions already validated in complex environments;
• A complete system approach, integrating pump, motor, and electronics for maximum performance;
• Flexibility and scalability, ideal for adapting to individual sites and replicating the model on a large scale;
• Continuous technical support, both pre- and postsales.

Each installed system includes:

How it Works
The improvements result from the combination of three factors:
1. Higher motor efficiency: The permanent magnet motor eliminates rotor losses typical of asynchronous motors, improving efficiency especially at partial loads.
2. Intelligent speed control: The VFD continuously adjusts speed to actual demand, keeping the pump close to its maximum efficiency point.
3. Electro-hydraulic optimization: Proper sizing and regulation reduce: energy losses, off-curve operation and waste due to mechanical regulation.

Results achieved
Following an adequate operating period, the municipality carried out a structured performance analysis, providing
data related to 41 upgraded installations. Before the modernization, the total annual energy consumption of the analyzed systems amounted to 8,591,030 kWh. After installation, consumption was reduced to 7,069,427 kWh per year. The verified energy savings therefore amount to 1,521,603 kWh annually, corresponding to an overall average reduction of 17.7%.
In municipal applications, a percentage reduction of this magnitude is particularly significant, as the large overall
volume of energy consumed substantially amplifies the impact of the improvements achieved.

Improvement of the Energy Performance Indicator
To provide an objective evaluation of the savings achieved, the Energy Performance Indicator (EnPI) was selected, a parameter that relates energy consumption to the volume of water pumped. In this specific case, kWh/m³ values were measured before and after the upgrades. The average value of the indicator decreased from 0.319 kWh/m³ to 0.259 kWh/m³, corresponding to an improvement of approximately 18.8% in specific energy efficiency.

The chart shows the reduction in specific energy consumption, expressed in kWh per cubic meter pumped, across five upgraded installations. In all cases, the ENPI decreases following the introduction of High Efficiency Systems.

This demonstrates that the savings achieved are not linked to a reduction in production or operating hours, but to an actual increase in system efficiency. The analysis highlights a better match between the pump
characteristic curve and the system curve, more efficient behavior at partial loads, and a significant reduction in
losses related to motor and electronic efficiency.

Economic Impact
The annual energy savings of 1,521,603 kWh generate a direct and fully quantifiable economic impact. Assuming
an average electricity cost of €0.20/kWh*, the annual economic benefit can be estimated at approximately
€304,320.60. Considering the investment difference between a traditional solution with an asynchronous motor and a system based on a permanent magnet synchronous motor, these savings generally allow for a payback period of less than a year, depending on the operating conditions of the individual sites.

* For the purpose of this evaluation, an average electricity cost of €0.20/kWh is assumed, calculated on the basis of the 2025 average Italian Single National Price (PUN) of approximately €118/MWh, as reported in the 2025 ARERA Annual Report, plus the tariff components regulated by the Authority.

Integration with Photovoltaic Systems
Some installations were integrated with photovoltaic systems, achieving the best overall performance. The combination of high-efficiency motors, variable speed control, and local renewable energy generation made it
possible to reduce electricity consumption from the grid by up to 50%. This result is made possible by the flexibility of inverterbased systems, which continuously adapt operation to energy availability, maximizing self-consumption and improving overall sustainability.

Environmental Impact
Annual energy savings exceeding 1.5 GWh translate into a significant reduction in carbon dioxide emissions.
Depending on the emission factor of the national energy mix, this reduction can be estimated to amount to 325
tons* of CO₂ avoided each year. This result contributes concretely to the achievement of sustainability targets and the utility’s climate action plans.

* Estimated CO2 reduction was calculated using the Italian national electricity grid emission factor published by ISPRA for 2025, equal to approximately 0.215 kg CO2/kWh.

A&H Bewässerungssysteme & Gebäudetechnik GmbH (“Die Bewässerer”), headquartered in Moosburg with additional locations in Styria, Salzburg, and Tyrol, recently installed a professional irrigation system for a dressage arena and an indoor riding arena, utilizing pump technology from Franklin Electric.
The system’s objectives are to reduce dust formation and maintain uniform soil moisture, ensuring a high-quality surface layer. A perfectly maintained dressage arena forms the foundation for safe and successful training.

Water mist reduces airborne dust emissions
Dust kicked up on a dressage arena significantly irritates the respiratory tracts of both humans and animals. Inhaling this dust can lead to long-term health problems. The water mist generated by the irrigation system significantly reduces dust emissions by keeping particles on the ground.
In addition, moistening the surface creates a kind of seal that prevents dust from becoming airborne in the first place.
Through the targeted use of modern technology, the riding surface remains elastic, provides good traction, and stays comfortable to use—even under intensive use, in hot weather, or during prolonged dry spells.
These properties are not only crucial for achieving good training results but also play an important role in preventing
injuries to horses.

Efficiency and Precise Control
The systems installed by “Die Bewässerer” operate efficiently, conserve water, and deliver reliable performance. They can be precisely tailored to the size of the riding arena as well as to individual usage requirements. This customized approach helps prevent both over- and under-irrigation.
Automated control systems further enhance efficiency by enabling convenient irrigation outside training hours and ensuring consistently optimal surface conditions.

The dressage arena is evenly moistened.

Customized Planning and Economic Considerations
During the planning phase, the experts first analyzed the local conditions. Their objective was to develop a customized solution that would ensure uniform moisture distribution across the entire area while minimizing dust formation.
In addition to the technical requirements, economic considerations also played a key role. Both the initial investment and the long-term operating and maintenance costs were carefully evaluated. To keep these costs as low as possible, “Die Bewässerer” selected high-quality pump systems from Franklin Electric.

High-Quality Pump Technology in Action
The 4-inch submersible motor used in the system delivers a power output of 7.5 kW and features hermetically sealed windings. This sealing compound provides mechanical stabilization, insulates the stator windings, and ensures efficient heat dissipation. The motor is equipped with hydrodynamic, liquid-lubricated radial bearings as well as a heavy-duty Kingsbury-type thrust bearing, enabling completely maintenance-free operation. Its high-quality stainless-steel construction ensures exceptional durability and robustness.
The submersible pump is made of Stainless steel, providing excellent resistance to corrosion and abrasion. Its robust design ensures precise alignment of all components, extending service life and enabling reliable, trouble-free operation. An integrated check valve offers additional protection against water hammer.
The overall hydraulic design enhances system efficiency, reducing energy consumption and contributing to low operating costs.

Dust emissions are being reduced in the indoor riding arena.

Performance Data and Long-Term Benefits
The 6-inch VS submersible pump (VS19/10) was installed in this system. With a rated power of 7.5 kW, it achieves a flow rate of up to 80 m³/h and a maximum head of 116.7 m. The use of high-quality components ensures reliable operation and extends the service life of the entire system. This leads to long-term cost savings. At the same time, the precisely tailored irrigation system enables the economical use of water and energy. Through the targeted distribution of water, every area is optimally supplied—without losses and with maximum efficiency.

A smarter way to move water
In an agricultural area renowned for fruit production and increasingly vulnerable to water scarcity, the West
Romagna Land Reclamation Consortium has developed numerous irrigation projects, both inter-company and
public, to support irrigation activities serving local farms. The contracting company, with the technical support
of Idrologica Srl, has launched the implementation of an extensive irrigation infrastructure project aimed at
supplying over one million cubic meters of water to 136 farms through smart and sustainable technologies.
For one of the main artificial reservoirs involved in the project, Franklin Electric provided a pumping solution that combines high performance with outstanding energy efficiency.

Solving irrigation with intelligence and precision
Farms in the area grow delicate crops such as kiwifruit, peaches, apricots, and grapes, which are highly sensitive to
both water shortages and thermic stress. With fluctuating reservoir levels, changing seasonal needs, and a strong push toward sustainability, the solution needed to offer more than just pumping power. It had to be adaptable, efficient, and smart enough to respond to real-time irrigation demands.

Adaptive technology that responds to the land
Franklin Electric’s High Efficiency Systems stand out for their ability to dynamically adjust to the actual water needs of the network. Thanks to advanced speed control, each pump continuously modulates its output to match the required flow. This ensures optimum aggregate performance even when multiple systems operate in parallel.
This adaptive functionality brings multiple advantages.

• Pumps respond precisely to irrigation demand, avoiding energy waste.
• Pressure remains consistent, protecting pipelines and improving water distribution.
• The system performs just as efficiently at part load, significantly lowering power consumption.
• The result is a smarter and more sustainable way to manage irrigation, especially critical during peak agricultural months.

Sustainable engineering meets real-world farming
The entire installation is part of a broader strategy for energy-conscious water management. The reservoir hosting
Franklin Electric’s systems is also equipped with floating solar panels, which contribute to powering the pumps and
significantly reduce dependence on grid electricity. To further optimize performance, the High Efficiency Systems
are mounted on motorized sleds that move along anchored rails. This design ensures the pumps always operate
one meter below the water surface, where water temperatures remain stable, protecting crops from thermal stress
and improving overall irrigation quality. The combination of renewable energy, adaptive speed control, and precision-positioned pumping represents a forward- looking model for sustainable agricultural infrastructure.

Future-proofing agriculture through efficiency
Franklin Electric’s High Efficiency Systems have brought clear advantages to the irrigation project. Lower energy
consumption, reduced heat generation, and smaller cable requirements are made possible thanks to permanent magnet motors. The sled-mounted design ensures stable water temperatures for crops, preventing thermal shock and supporting healthy growth. Combined with renewable energy, this solution not only lowers operating costs but also reflects a commitment to a more conscious and responsible way of farming. It is a step toward protecting natural resources while ensuring that future generations can continue to cultivate the land.

Impo is part of the Franklin Electric product family. This not only provides improved access to expertise and product
diversity, but also expands the wealth of experience, as in this project.

Delivering a reliable water supply to support Kahramanmaraş’s growth
To meet the growing drinking and utility water needs of the city of Kahramanmaraş, the Kahramanmaraş
Metropolitan Municipality, KASKİ, in collaboration with the project contractor SMY Sondaj Ltd. Şti., launched a
large-scale initiative to establish a high-capacity water transmission system between the Kılavuzlu dam and the
metropolitan municipality water works. The project involved the installation of a 12-kilometer-long pipeline with a
1,000-millimeter diameter, designed to provide the city with an uninterrupted and reliable water supply.
This project was carried out combining the expertise of KASKİ, SMY Sondaj, and İmpo / Franklin Electric experts,
who supported the customer from the initial design of the right pumping system all the way through to on-site
commissioning.

Navigating tough terrain and high-demand requirements
The project faced several challenges, including difficult terrain conditions along the 12,000-meter route, the need to
select pumps capable of ensuring continuous high-capacity water transmission, and the necessity to balance energy efficiency with long-term operational costs.
These factors required a solution that could combine performance, reliability, and sustainability over time.
Engineering excellence: high-capacity pumps for reliable water flow
To address these challenges, a robust and durable pumping system was implemented, featuring twenty-two İmpo Motor Pompa SS 894/21 pumps driven by 8-inch 150 HP motors.
Each pump delivers 25 liters per second, ensuring a steady and dependable water flow to the city's water works.
Full support was provided, from engineering design to on-site commissioning, ensuring the system matched the
project’s technical requirements and long-term performance expectations.
The use of modern drilling techniques and advanced engineering practices further enhanced the safety,
stability, and longevity of the entire pipeline system. This comprehensive solution was specifically designed to
meet the project’s technical demands while maintaining operational efficiency and durability in the field.

Technology that drives results
The İmpo system was selected for its robust engineering, high efficiency, low maintenance, and adaptability to challenging environments.
İmpo 8" rewindable submersible motor

• Range: 30 - 150 HP
• 8" NEMA shaft end and flange
• Maintenance free, water lubricated radial and axial bearings
• Pressure balancing between inner and outer side with rubber diaphragm / pressure valve
• Suitable for operation at different speeds via frequency converter (above 30 Hz)

İmpo 8" SS 894/21 submersible pump

• Operating range at 50 Hz: Q = 64 m³/h - 120 m³/h
• NEMA Standard
• Impeller type: Semi Axial
• Shaft diameter : 25 mm

Learn more about the system here: impo.com.tr

Franklin Electric and İmpo as reliable partners in water management

In collaboration with SMY Sondaj Ltd. Şti., a sustainable and efficient water transport system was successfully delivered to KASKİ, ensuring a continuous and reliable water supply for the city of Kahramanmaraş. Today, the system not only offers high delivery capacity, but also ensures energy-efficient and long-lasting operation, contributing to reduced maintenance and lifecycle costs.
The project was completed and commissioned within the planned timeline, strengthening confidence in the quality
and reliability of the installed infrastructure and in the strength of the cooperation between all partners involved. 

This project, which was continuously supported by Franklin Electric experts from system design to commissioning,
reflects Franklin Electric's philosophy and commitment to being a reliable partner to its customers. In addition, the
product solutions add value to the municipal infrastructure and help local authorities ensure a stable and secure water supply for their communities.

More than motors – units consisting of motor, pump, cooling jacket and PT100

Franklin Electric is not only a leader in the development and manufacturing of submersible motors up to 400 kW / 12" / 3300 V, but also offers complete pump systems including matching submersible pumps which are produced in-house.
These systems are designed for flow rates of up to 650 m³/h and are available in various stainless steel configurations – ideal for demanding applications such as municipal water supply. Matching control and monitoring units not only increase system efficiency but also enhance reliability and service life.

For the drinking water supply in Linz (Austria), a high-performance pump and motor unit in 10"/12" configuration was recently installed – with a total length of approximately 3 meters and a total weight of over 1,000 kg. Due to its size and complexity, installation was carried out at the Franklin Electric facility in Wittlich (Germany). In addition, the experienced Franklin Electric service team supported the commissioning process directly on site in Linz.
The unit was installed in a drinking water well approximately 30 meters deep, located in a wooded area near the Donau River. From there, the water is transported—together with water from additional wells—to a nearby municipal waterworks that ensures the city’s drinking water supply.

PT100 temperature sensor

The customer opted to install an additional PT100 temperature sensor. This is a highprecision platinum sensor with a linear resistance-totemperature characteristic. The sensor is installed in the upper endbell, measures the temperature above the winding head, and thus continuously monitors the winding temperature.
The PT100 temperature sensor is equipped with a 4-core shielded cable, available in various lengths, providing additional protection against high-frequency interference that can occur in applications with frequency converters.

System components:

• VSI submersible pump (VSI344/03/2B)
• weight: 168.5 kg, length: 123.5 cm
• 10" rewindable submersible motor, 150 kW, DOL II
• weight: 658 kg, length: 176.9 cm
• PE2/PA motor winding
• 316SS Stainless steel
• 12" Stainless steel 304SS cooling shroud
• length: 225 cm
• PT100 temperature sensor
• 2 motor leads of 35 m each

The system was additionally equipped with a PT100 temperature sensor, which monitors the winding temperature and protects the motor from overheating. In addition, the team decided to install a cooling shroud, as the well diameter in Linz is too large to ensure sufficient cooling flow along the motor (see info box).

Why Franklin Electric? Reliable. Efficient. Available.
Franklin Electric submersible systems are exceptionally reliable and powerful. Especially in installations of this kind, it is essential to rely on a motor and a pump that deliver the specified performance, operating dependably and maintenance-free. Franklin Electric VSI submersible pumps feature highly efficient hydraulics with efficiencies of up to 85% and are perfectly matched to the motor. They are made from durable stainless steel investment castings, ensuring outstanding corrosion resistance. The pumps are available in various metallurgies, from CF8/304 and CF8M/316 to premium DUPLEX. Moreover, almost all models are available from stock, eliminating long lead times. A key factor in choosing Franklin Electric products is the personal consultation and on-site support provided by our experienced service technicians.

Cooling jacket
To ensure adequate motor cooling, a cooling shroud was used. This separate metal sleeve is sealed above the pump intake. The pumped medium is thus drawn in from below and directed along the motor, allowing the generated motor heat losses to be dissipated via convection.
A cooling jacket is required in the well if the well diameter is very large, the water supply comes from above, or the flow rate is insufficient.

A 220 kW pump-motor-aggregat drives agricultural efficiency in the heart of Sivas

In the rural village of Yarhisar, located in the Hafik district of Sivas, Turkey, a large-scale irrigation project was launched to support local potato farming.
Drawing from the powerful Kızılırmak River, Türkiye’s longest river, the initiative aimed to improve agricultural output by ensuring a reliable and consistent water supply to expansive potato fields.
To meet the demand for high-capacity, low-maintenance, and efficient water delivery, the team turned to Franklin Electric for a proven, high-performance solution.

Faced with harsh terrain, hard-to-access rural land, and the need for uninterrupted irrigation, the project team needed a system capable of both high flow and long-term reliability.
The solution was a floating pump system powered by a Franklin Electric 12" 220 kW submersible motor, paired with a 12" VSI Stainless Steel Cast submersible pump 454/03I/1C.
This configuration delivers up to 650 m³/h, enabling efficient water extraction even in difficult riverbank conditions.
To ensure durability and continuous operation, a stable floating platform was designed and installed using empty
barrels combined with a robust wooden frame.

Technology that drives results
The Franklin Electric system was selected for its robust engineering, high efficiency, low maintenance, and adaptability to challenging environments.

12" 220 kW Franklin Electric submersible motor

• High torque for large-volume pumping
• Energy-efficient operation for reduced running costs
• Proven long-life performance in demanding field conditions

12" VSI 454/03I/1C Stainless Steel Cast submersible pump

• Stainless steel construction for corrosion resistance
• Multiple performance configurations:
• 80 MSS: 650 m³/h
• 90 MSS: 600 m³/h
• 110 MSS: 450 m³/h

Find out more about our Stainless Steel Cast submersible pumps: Franklin Electric SS cast submersible pumps 8"/10"/12" - Product insights

A lifeline for the farming community
For the farmers of Yarhisar, this project delivered more than just a pump system - it brought confidence and peace of mind. In a region where each growing season counts, knowing that the irrigation will run without interruption is
transformative. As one local representative shared:
“We chose the Franklin Electric motor because of our confidence in its performance and the quality of the technical support it provides. Our system has been operating flawlessly since its installation, allowing our farmers to continue their irrigation plans without disruption.”
The success of this project is a statement to what happens when reliable technology meets real community needs.

Motor-pump unit for horizontal pond installation with cooling jacket and temperature sensor

Our customer, Pumpentechnik und Elektro Pauli GmbH, recently delivered a high-performance motor/pump unit to an agricultural operation. The system, consisting of a submersible motor with PT100 temperature sensor, a submersible pump and a cooling shroud, is a key component of a modern field irrigation system. It is used to supply a Rollomat irrigation machine, ensuring efficient and reliable watering.

Installed Components:

• 10" submersible pump VSI 254/03
• 8" rewindable submersible motor, 67 kW, ΥΔ with 6 m connection cable
• PT100 temperature sensor
• Stainless steel cooling shroud
• Suction strainer

The high-performance VSI series pumps achieve efficiencies of up to 85% and are known for their excellent corrosion resistance. Both the casings and impellers are made of highquality precision-cast stainless steel. Depending on the configuration, they can deliver flow rates up to 650 m³/h and heads of up to 600 meters.
The 10-inch version used in this application delivers up to 350 m³/h, depending on the total head.

Franklin Electric’s rewindable motors are available with power ratings up to 400 kW. The 8-inch rewindable submersible motor used in the system from Pumpentechnik und Elektro Pauli delivers a power output of up to 67 kW. These motors feature premium-grade, rewindable windings that can be replaced if needed. Thanks to hydrodynamic, liquid-lubricated radial bearings and heavy-duty Kingsbury type thrust bearings, the motors are completely maintenancefree. The electrical design ensures high efficiency and low operating costs.
The SandFighter™ sealing system with SiC/SiC mechanical seal provides optimal protection against abrasive media such as sand.

Horizontal Pond Installation with Cooling Shroud

Instead of being installed in a conventional well, the motor/ pump unit was mounted horizontally in a pond with a
depth of approximately 4 meters. To ensure adequate motor cooling, a cooling shroud was used. This separate
metal sleeve is sealed above the pump intake. The pumped medium is thus drawn in from below and directed along the motor, allowing the generated motor heat losses to be dissipated via convection.

The heat loss produced by the submersible motor is transferred to the pumped medium through convection. If the minimum cooling velocity along the motor is not maintained, the installation of a cooling shroud becomes essential to ensure proper heat dissipation. This is particularly important in open water bodies such as lakes, reservoirs, rivers, or tanks. A cooling shroud is also often required when the well diameter is too large, inflow occurs from above, or the flow rate is insufficient.

Components of the cooling sleeve kit
1 Cooling sleeve tube (Stainless steel)
2 Pump sealing ring (EPDM) with drinking water approval
3 Motor spacer
4 Pipe clamps
5 Filter strainer (accessories)
6 Console (accessory for horizontal mounting)

PT100 temperature sensor
The customer opted to install an additional PT100 temperature sensor. This is a high-precision platinum sensor with a linear resistance-to-temperature characteristic. The sensor is installed in the upper endbell, measures the temperature above the winding head, and thus continuously monitors the winding temperature.
The PT100 temperature sensor is equipped with a 4-core shielded cable, available in various lengths, providing additional protection against high-frequency interference that can occur in applications with frequency converters.

Commitment to Sustainable Water Management
With rising operating costs and increasing demands for energy efficiency, municipalities are under growing pressure
to modernize their infrastructure with advanced, energysaving solutions.
Since 2022, Franklin Electric has been working closely with a major municipality in Northern Italy. The goal of this
partnership: a transition towards an efficient and sustainable water infrastructure.
This municipality supplies clean drinking water to millions of citizens. At the start of the modernization effort, two
priorities were clear: reducing energy consumption and ensuring a reliable water supply. There is significant potential for greater energy efficiency - particularly in water extraction from wells and storage tanks. The key lies in selecting the right components and precisely sizing the system. Up to 90 percent of a pump system’s total life cycle cost can be attributed to energy consumption. Smart planning here leads to long-term cost savings—while also protecting the environment and conserving resources. Reliability and quality are also essential when it comes to securing the water supply for millions of people. At Franklin Electric, the key factors of success are quality, innovation, service, availability, and cost-efficiency. That’s why the municipality chose Franklin Electric’s High Efficiency Systems—laying the foundation for a successful collaboration.

Optimizing energy consumption with permanent magnet technology

A key factor in reducing energy consumption and achieving high efficiency in pumping systems is the use of permanent magnet motor technology. Instead of a traditional squirrelcage induction motor, Franklin Electric’s High Efficiency System features a rotor design with integrated permanent magnets. This results in significantly higher efficiency and lower overall energy consumption compared to standard induction motors. The permanent magnet motor eliminates electrical rotor losses, improves partial load behaviour, and generates less heat during operation. With the same pump load, the synchronous motor requires less current - delivering greater energy savings and enhanced system performance.

Franklin Electric's High Efficiency Systems
Since 2022, Franklin Electric has supplied numerous High Efficiency Systems (HES) to the municipality - delivering
impressive, measurable results. The full energy-saving potential is unlocked only through the perfectly matched
interaction of all components, combined with a Variable frequency drive:

• Submersible pump (VS / VSI)
• Permanent magnet motor (6" / 8")
• Output filter
• Frequency drive (VFD)

Franklin Electric’s HES solutions are specifically designed to meet the needs of municipal water management. They
deliver top-level efficiency with significantly reduced energy consumption. This lowers electricity costs and frees up
municipal budgets for other critical priorities. Built for reliability, the HES enables precise speed control, optimized water flow, and reduced wear on components. The result: fewer service interruptions, lower maintenance
requirements, and longer system life - supporting a more sustainable and efficient public water infrastructure.

Sustainable Municipal Water Utilities
Franklin Electric’s collaboration with municipalities around the world highlights the benefits of advanced motor and
pump technologies in optimizing energy use, reducing costs, and improving service reliability. By using permanent magnet motors, municipalities can achieve long-term sustainability while maintaining a highperformance
water supply for their communities. Franklin Electric is a pioneer in permanent magnet technology for submersible motors. Thousands of these systems have been installed globally - and have proven their real-world effectiveness for over a decade. They reach efficiency levels of up to 94% and consistently deliver double-digit energy
savings. The difference in investment costs between the HES and a regular pumping system is amortized in less than 2 years in most cases - making them a smart and sustainable investment for public water infrastructure.

Innovative pump technology for urban water features

A striking example of the performance and reliability of our vertical multistage pumps can be found at the fountain field in the Center at Potsdamer Platz, Berlin.

Amidst the dynamic architecture and energy of the capital, beneath the Center’s iconic roof structure, a colorfully illuminated water feature creates a moment of calm. At ground level, the fountain field offers a place to relax, for children to play, and for visitors to take a refreshing break from the city’s hustle and bustle.

The planning and execution of the installation were carried out by AquaActiv Springbrunnen- & Wassertechnik GmbH, based in Lage/Germany. The company specializes in the design, project management, construction, and maintenance of classic fountains, modern fountain fields, and innovative water attractions – for both urban spaces and exclusive private environments.

For the Potsdamer Platz project, AquaActiv chose robust, low-maintenance, and above all highly reliable pump technology – selecting our vertical multistage pumps from the EV series. In addition to their proven reliability, rapid availability played a key role: the pumps were supplied directly from our warehouse in Wittlich, Germany.

A total of 21 EV pumps now power the impressive display of illuminated water jets. The centrifugal pumps in this series deliver flow rates of up to 115 m³/h and heads of up to 326 meters. Designed for durability and quiet operation, they also offer easy maintenance – thanks to features like removable cartridge mechanical seals and replaceable stainless steel wear rings in the impeller neck. These elements help to minimize service times and increase operational reliability.

Their compact design with inline connections and flexible mounting flanges further simplifies installation – yet another advantage of this versatile and high-performance pump series.

Center Potsdamer Platz – A Unique Urban Experience

Following an extensive renovation and modernization, the former Sony Center reopened in 2024 with a new identity and renewed energy. Designed by renowned architect Helmut Jahn, the iconic complex now offers a vibrant mix of functions across 26,000 m² of land and a total floor area of 132,500 m². The revitalized Center seamlessly blends cutting-edge office spaces, premium residential units, and a diverse range of retail, culinary, and entertainment experiences – making it a dynamic hub in the heart of Berlin.

Evaporative cooling as a climate measure

Fountain fields like the one at the Center am Potsdamer Platz in Berlin are gaining popularity – and for good reason. They offer a vibrant way to activate public spaces with water, while preserving the multifunctional use of the area. When the fountain is not in operation, the surface remains fully accessible for vehicles, pedestrians, and surrounding buildings. Even during operation, the water feature can be walked on, making it a fully integrated part of urban life.

Beyond their aesthetic and recreational appeal, these installations provide measurable environmental benefits. The movement of water produces evaporative cooling, which reduces ground-level air temperatures and increases local humidity – creating a perceptible and pleasant microclimate.

As cities face rising temperatures and more frequent heatwaves, this cooling effect is becoming increasingly valuable. In densely built urban areas with limited greenery, wet surfaces such as fountain fields can contribute significantly to climate adaptation strategies. At the same time, they enrich the public realm – transforming spaces into inviting cultural and recreational destinations.

Irrigation with rainwater for dust binding

Our customer Pumpentechnik Bewässerungssysteme Zimmermann (Murg-Niederhof and Willich) recently installed Franklin Electric's powerful EV series multistage centrifugal pumps to install a dust control irrigation system on the site of a haulage company in Duisburg.

The dust produced by industrial operations is not only harmful to people and the environment, but can also damage machinery. Inhaling the dust can cause serious long-term damage to human health. Obstructed visibility can also pose additional potential hazards. Zimmermann therefore offers customised spraying systems that bind the dust. The water mist not only reduces the dust emission in the air and brings it to the ground, but also seals the open surfaces by moistening them to avoid that the dust gets into the air.

The system works with rainwater that is collected from the hall roofs and transported via a pipe to a vertical, multi-stage inline centrifugal pump. When planning the dust suppression system, attention was paid to the quality and durability of the products in addition to the required performance. The Franklin Electric model EV 10/10 was chosen. This pump operates with a 4 kW high-efficiency motor, achieves delivery heads of up to 102.8 m and flow rates of up to 14 m³/h.

The pumps are available in different metallurgies (cast iron, 304SS, 316SS). The decision was made in favour of the 304SS version, in which all water-carrying parts are made of high-quality stainless steel. A pressure switch and a pressure vessel are used to automatically switch the pump on and off.

Several pipes are installed from the EV pump to the sprinklers on the roofs of the warehouses. Each sprinkler is stabilised by individually manufactured brackets and controlled by solenoid valves with separate valves for each sprinkler.

They are conveniently operated via a radio remote control so that employees can control the sprinklers from anywhere on the site.

EV Multistage Centrifugal pumps
Flow rates up to 115 m³/h (50 Hz)
Delivery heads up to 326 m (50 Hz)

• Reliability and robustness
• Reduced noise emission
• Quick and easy maintenance thanks to removable cartridge mechanical seal
• Easy installation thanks to inline connections

ROBUST AND RELIABLE

• Compact, robust design
• Easy installation thanks to variable mounting flanges
• All parts in contact with water made of stainless steel
• Silicon carbide shaft bearing and bearing sleeve
• Easily replaceable cartridge mechanical seal (no disassembly of the motor required for models over 4 kW)
• Reduced service and maintenance time
• Replaceable stainless steel wear ring in the impeller neck