Flexible and Rugged Solutions for Valve Automation
From power generation in power plants and offshore facilities to the chemical and pharmaceutical process industries, water management, and shipbuilding: demanding industries require valve actuators they can rely on at all times.
HyRAV® was developed specifically for these requirements. Our hydraulic valve actuators combine a compact design, high torque density, and reliable operation with Eckart’s helical gear principle. The concentric transmission of force enables valve-friendly operation without introducing additional lateral loads on the valve stem through the actuator design.
Depending on the configuration and project requirements, ATEX-certified or SIL-rated versions are available.
HyRAV® Flex
Maximum Performance and Flexibility
HyRAV® Flex is the right choice when an application requires more than a conventional standard solution. It offers high torque reserves, flexible interfaces, and application-specific engineering for special installation conditions, operating environments, or valve requirements.
This makes HyRAV® Flex particularly well suited for demanding industrial, power generation, offshore, marine, and process applications where technical adaptability and reliable operation are essential.
HyRAV® SG
Compact Design for Clearly Defined Requirements
HyRAV® SG is the compact standard solution within the HyRAV® product range. It was developed for applications where torque, size, interface, and function are clearly defined.
Its streamlined, rugged design enables efficient integration and cost-effective implementation. HyRAV® SG is the right solution when the system requirements need to be met reliably without using an oversized custom-engineered design.
Choosing the Right HyRAV® Valve Actuator – Questions & Answers
The HyRAV® SG is the compact, standard series solution for clearly defined valve automation tasks. It is ideal for applications where performance, envelope dimensions, interfaces, and function are well specified and fall within the standard range.
The HyRAV® Flex is the project-specific, customizable solution within the HyRAV® family. It comes into play when higher torque reserves, special mounting conditions, additional interfaces, or individualized configurations are required.
The choice depends on your specific plant requirements.
The HyRAV® SG is the right option when a compact, cost-effective standard solution reliably covers the required performance range.
The HyRAV® Flex is the right option when the application demands more customization, higher torque reserves, or a project-specific design.
For a precise recommendation, our engineers review the valve, load case, mounting situation, switching requirements, and operating conditions. Talk to us – we will help you select the optimal actuator for your application.
While the HyRAV® SG covers a wide field of standard requirements with ample torque, the HyRAV® Flex goes a decisive step further. It is not only engineered for the absolute peak loads encountered in industry, but can also be precisely tailored to the specific task.
This means you do not just gain more potential torque – you get exactly the torque and reserve capacity you need, in a configuration optimized for your application.
The HyRAV® principle offers two key advantages over conventional electric or mechanical valve actuators:
No harmful side loads: Unlike many other concepts (e.g. Scotch Yoke, Rack‑and‑Pinion actuator), the HyRAV® operates purely concentrically. No radial or lateral forces are transmitted to the valve shaft. This protects the valve, drastically reduces wear, and increases the overall service life of the valve assembly.
Superior power density compared to electric actuators: Our hydraulic systems provide significantly higher torque density than electric actuators. These torque reserves are more than just additional performance – they are a critical safety factor. They ensure that even large valves with high flow rates can still be operated reliably and safely under extreme conditions where electric actuators reach their physical limits. For example, fail-safe closures with response times as fast as 0.2 seconds are achievable.