Extensive expertise in hydropower technology

Hydraulic steel structures

In hydraulic steel structures, durable and high-quality hydraulic systems are required for the gates, weirs, and intake gates. Using standard components, we supply these to you cost-optimized in the tried-and-tested HYDAC quality. As one of the few providers worldwide, we offer you—in addition to cylinders to DIN ISO 19704—large cylinders with up to 20 m strokes. Take advantage of our extensive portfolio. 

Shut-off devices

Shut-off devices ensure safe operation in your hydropower plant. Mechanical hydraulic control devices manage the high pressure of large water volumes, enabling fast and secure closing times. HYDAC can provide support with highly functional cylinders compliant with AD2000 and DIN ISO 19704 standards. Our extensive experience in hydraulics, process filtration, and accumulator technology makes us the ideal partner.

Water turbine

Whether it's a Kaplan, Francis, Pelton, or pump turbine—HYDAC produces custom system solutions using standardized components for your water turbines. In addition to hydraulic turbine controllers, essential for controlling turbine adjustment devices, we offer highly efficient accumulator solutions and expertise in process water filtration (e.g., shaft sealing). Thanks to our international service, we are available to provide advice and support wherever you are.

Generator

The energy converter in the hydropower plant: driven by turbines, the generator uses the water's kinetic energy and converts this into electric energy. Its functionality must be guaranteed at all times. An optimal oil supply for lubrication and cooling makes a significant contribution to safe system operation. HYDAC provides comprehensive advice on solutions for lifting, braking, and cooling systems as well as lubricating oil systems.

Balance of Plant

Auxiliary functions significantly impact your hydropower plant's productivity. Monitoring key parameters through condition monitoring is crucial, as are comprehensive observation, treatment, and filtration of operating media. Rely on our expertise as hydraulics and fluid power specialists—since 1963.

Sustainability

Sustainably save costs, despite constantly rising energy and raw material costs—HYDAC makes this possible thanks to standardized, installation space-optimized components and systems. We use optimized filter systems and drive systems to help you conserve resources in an efficient way. Reduce your CO2 emissions as well as the expenses for your hydropower plant in the long term.

Sustainability in hydropower plants: our product solutions

HYDAC KineSys variable-speed drive solution

Looking to reduce energy consumption, noise emissions, tank size, and maintenance intervals for your hydropower plant? How is this possible? Variable-speed hydraulics pave the way for resource-efficient plant operation. With electromechanical cylinders, you eliminate the need for oil as an operating medium, reducing contamination potential.

More information on the HYDAC DVA

HYDAC Air-X filter technology

Save installation space with optimized degassing of your lubrication systems—thanks to the innovative Air-X technology from HYDAC. Reduce tank size by up to 40% and optimize your hydropower plant's resource utilization sustainably.

More information on HYDAC Air-X

HYDAC dewatering unit FAM

Our FAM series dewaters, degasses, and filters your hydraulic fluids and lubrication fluids. The efficient care means that you benefit from longer oil change intervals, reduced life cycle costs, greater reliability, and increased system reliability.

More information on the HYDAC FAM

HYDAC Varnish Elimination Unit

Are solid or gel-like deposits blocking your plant? Your issue might be oil degradation products, also known as varnish. Our solution lies in our service-friendly Varnish Elimination Units, which reliably remove varnish from your mineral oils.

More information on the HYDAC VEU
 

System availability

The trend toward digitalization is pervasive and shows no signs of slowing down, even within the realm of water power. HYDAC is here to support you on this journey with smart sensors and innovative monitoring devices for your systems and plants. Through condition monitoring combined with predictive maintenance, we can reduce your servicing and maintenance intervals, ultimately increasing the productivity of your large or small hydropower plant.

System availability in hydropower plants: our product solutions

HYDAC Contamination Sensor Module

Enhance your system availability by utilizing our compact and cost-effective online condition monitoring module. Trust in our proven technology for measuring solid particle contamination and water saturation in oil-hydraulic systems within your hydropower technology.

More information on the HYDAC CSM-E

HYDAC Metallic Contamination Sensor

The HYDAC MCS continuously monitors particle contamination in your fluids. This sensor is designed to detect critical machine states early on, allowing you to plan maintenance accordingly. Additionally, the MCS can optionally switch between ISO 4406:1999 / SAE AS 4059 and ISO 4406:1987 / NAS 1638 standards.

More information on the HYDAC MCS

HYDAC IO-Link sensors

With Industry 4.0 in mind, we've incorporated IO-Link and smart sensors into our range, offering capabilities beyond mere measurement. Take advantage of valuable detailed information such as overload situations, process value statistics, temperature profiles, and operating hours. For reliable condition monitoring of your hydropower plants.
 

More information on HYDAC sensors with an IO-Link interface

HYDAC p0‑Guard pressure switch

Our reliable p0-guard monitors pre-charge pressure in your hydraulic accumulators. This enhances hydropower plant safety and facilitates faster detection of gas leaks, saving time and costs. Minimize failure costs with the HYDAC p0-guard.

More information on the HYDAC p0‑Guard

Functional safety

Hydropower plants are not only climate-friendly and cost-effective but also highly reliable. Years of dependable operation attest to this fact. With HYDAC, you're in safe hands: reliable components and monitoring systems tailored to your country's specific requirements, with years of successful operation in real-world applications. Together, let's ensure the functional safety of your hydropower technology.

Read more about functional safety

Functional safety in hydropower plants: our product solutions

HYDAC 4/3 proportional directional valve

The HYDAC C4WERE 6 series are direct acting, electrically operated directional valves. Always on the safe side with the fail-safe function of our solenoid-actuated control valves. We also offer you pilot-operated valves for greater flow rates.

More information on HYDAC industrial valves

HYDAC 4/3 control valves with ESD sandwich plate

Our pilot-operated, electrically powered directional valves are tailored for high flow rates in hydropower plants. An electrically or hydraulically operated sandwich plate is available as an option, including ESD functionality. Choose between versions with or without switch position monitoring.

More information on HYDAC industrial valves

HYDAC directional valves with switch position monitoring

Whether it's a piston spool valve or poppet valve design: our solenoid-actuated and direct-acting WSER reliably process your safety control system's signals. Learn about our WSER valves with their leak-free design and integrated monitoring sensor.

More information on HYDAC WSER

HYDAC sensors

In addition to our standard range, we offer sensors up to SIL 3 (IEC 61508) and PL d (ISO 13849) for safety-critical applications. These sensors feature two channels (cat. 3) and include an optional self-diagnosis function (cat. 2). 

More information on HYDAC sensors

HYDAC laser linear position measurement system

Our measuring system visually monitors piston position, fulfilling an important safety role in your hydropower plant. Discover the benefits of our non-contact, leak-free system.

System solutions for small hydropower plants

Small hydropower plants provide stable local power supplies. With high efficiency and rapid implementation, they're especially attractive. Leveraging our industry knowledge, we develop consistently innovative and modular system solutions for your small hydropower plant. Rely on our proven technology in turbine control, lubrication, filtration, and more.

Small hydropower plants: our system solutions

HYDAC Hydrobox controller system

Tailored for hydropower technology, our modular hydraulic controller is based on the proven HYBOX basis system. It aims to fully modularize the hydraulic power unit. Configure the HYDAC hydrobox to meet your specific needs. 
 

HYDAC water-glycol circuits

HYDAC WGK applications were developed for use in closed cooling circuits, ensuring reliable operation of fluid-cooled plants. Integrate our proven WGK for consistent coolant temperature in your small hydropower plant.

HYDAC automatic filter AutoFilt® ATF

When you use our automatic filters from the HYDAC AutoFilt® series, both you and the environment benefit—thanks to longer service lives and less power consumption. Learn about our cyclone and filter element combination.

More information on the HYDAC ATF

HYDAC compact lubricating unit HYLU

A tear in the lubricating film can lead to major damage in a small hydropower plant. Our HYDAC Lubrication Unit is the solution for optimizing your lubrication systems thanks to its compact and modular design.

System solutions for large hydropower plants

Large power plants play a crucial role in covering base load and peak load in power generation, as well as storing energy efficiently. They are ideal partners in the transition to clean energy, owing to their high conversion efficiency. Avoid unexpected failures in your plants with our expertise in closed-loop control, lubrication, filtration, and media treatment. HYDAC can assist you in optimizing your large hydropower plants with global service.

Large hydropower plants: our system solutions

HYDAC piston accumulator stations

From the component to the system—our modular piston accumulator portfolio with innovative monitoring possibilities enables precise implementation of your specific requirements. Together we will find the optimum solution for your application.

More information on HYDAC piston accumulators

HYDAC turbine controllers

Thanks to our many years of expertise, we are able to design high-quality hydraulic turbine controllers that are perfectly aligned with your individual challenges. Contact us for a solution that perfectly suits your needs!

HYDAC process water filtration

Together, let's optimize process water filtration for cooling water and shaft sealing in your large hydropower plant. HYDAC offers an extensive portfolio of filter skids. Learn more about our systems and components.

More information on HYDAC process water filtration

HYDAC bearing lubrication system

HYDAC offers a wide range of high-efficiency lubrication systems perfectly tailored to your specific challenges. Our degassing strategy rapidly reduces air in the oil, significantly decreasing standard application dwell time. Contact us for a tailored solution!
 

HYDAC generator auxiliary plant

HYDAC has a long-standing presence in hydropower technology. Leveraging this extensive experience, we specialize in designing high-quality generator auxiliary systems, including cooling systems, lubrication oil systems, and high-pressure plants. Our dedicated team puts great effort into configuring your system to precisely match your on-site requirements. 
 

HYDAC oil mist separator STENO

HYDAC has proven itself as an expert in fluid and filtration technology for decades. On this basis, we developed our oil mist separator which has our efficient Optimicron® Drain filter element technology at its core.

HYDAC lifting and braking cylinders

Tailor-made and modular lifting and braking cylinders, including auxiliary systems: rely on our decades of experience in power plant technology. HYDAC is the contact partner for optimizing your large hydropower plant.

More information on HYDAC lifting and braking cylinders

HYDAC hydropower brochures for download
Whether you're dealing with small or large hydropower plants, our comprehensive industry brochures provide an overview of our products in hydropower, while our detailed product brochures showcase our components and systems in detail.