HYDAC's precision-fit valve solutions for controlling powershift and dual clutch transmissions enable you to effectively improve performance. As a result of many years of experience, we are able to offer you an extensive product portfolio of proportional and hydromechanical valves for a wide range of transmission purposes. Using a collaborative and innovative approach, we provide you with solutions for the specific valve technology challenges that arise in transmission applications.
Cross-section view of a HYDAC transmission control unit
Looking for a transmission offering reliable, repeatable, dynamic and precise performance? We have the right valve for each transmission element. This enables controllable, precise and dynamic gear changes during clutch or transmission brake control. Extensive testing ensures continuous optimisation – with HYDAC transmission valves, the oil's susceptibility to contamination and leakages are both reduced to a minimum. In addition, our valves are also optimised for cold-start performance.
Alongside key functional criteria such as switching time, pressure loss and hysteresis, we also focus on integrability, commissioning and reducing the installation space required. Our compact yet robust designs with high power density meet all of these challenges. To facilitate commissioning, we also offer the provision of individual valve measurement data via QR code.
Despite standard control logic, valve technology has to meet very different requirements depending on the type of transmission or function. HYDAC offers clever, adapted solutions for your transmission's exacting requirements.
The large cross sections of HYDAC valves ensure there is only minimal pressure loss when loading /unloading the clutch. The ratio of nominal flow rate to required installation space is impressive. Both our direct acting and pilot operated valves are extremely low leakage. HYDAC offers different pressure ranges for improved inching and consistent switching.
Pressure reducing valve PDMC12S30P-15
The use of smaller direct acting valves ensures controlled filling of the clutch through control of the flow rate. Our valves therefore enable a repeatable, consistent clutch filling process. The linear, slightly falling pressure control characteristic guarantees a smooth application of the clutch discs, and, as a result, the configured switching characteristics.
Pressure reducing valve PDMC05S30A-50
The inverse performance curve ensures that maximum clutch pressure is maintained in the event of a fault, e.g. a cable break.
Pressure reducing valve PDR10PZ-10
Compact valves with high power density can be used as an alternative to a proportional pressure reducing valve in the same installation space.
Directional valve WKC05S30C-53
HYDAC pressure relief valves provide a consistent system pressure across the entire flow range. Both hydromechanical and proportional valve versions are available. All valves have a separate vent port that enables the transmission hydraulics to be supplied with pressure without being affected by back pressure.
Pressure relief valve DB10SE-01
Would you like to find out more about our products? Then contact us now.
Thanks to many years of experience in the application of transmission valves, HYDAC is your specialist partner for custom designed valve solutions.
Severe contamination, increased viscosity, the presence of air in the oil or harsh environmental conditions – let's talk about it. HYDAC is adept at selecting the right valve for your requirement.
HYDAC's product portfolio ensures the perfect valve for countless functions and their associated requirements.
We place great emphasis on integrability, commissioning and reducing installation space – HYDAC transmission valves are characterised by their extremely compact design and high power density.
⇒ We find the right solution!
