Hydroelectric Projects

STERN HIDRAULICA, S.A. has been participating since its origins in various hydroelectric projects, up to day taking a long experince and knowledge, producing large cylinders and hydraulic power unit with drives and control panels.

To ensure long-term operation, the piston and piston rods are protected against corrosion and may use different treatment (ceramic, durocromado, stainless steel, ...)

Our customer advisory service, project planning, the state of technology-art engineering, production and acceptance tests (DIN, ASME or national standards), offers comprehensive solutions for hydraulic and thus reducing the maintenance operations thereof.

• Dam gates: Slide, Wheel, Radial, Clapetas,...
• Turbines
• Valves
• Hydrocharge

Water level control and flood protection: For water level control as well as for flood protection in modern dams hydraulic drive systems with hydraulic cylinders are mainly used for gate movement and positioning. Due to the different cinematic of the used radial gates, rotary gates, slide gates and flap gates, the hydraulic cylinders have to be engineered according to the respective case. This can be done according to the usual DIN and ASME standards, but also regional standards as well as special customers requests can be considered. The necessary functions for load holding, synchronisation and safety will be realized with manifold blocks which are mainly direct flanged to the hydraulic cylinders. Through rge optional possible engineering and production of hydraulic manifolds blocks as well as of the associated power packs we can offer our customers complete systems solutions.

Ship locks: For hydraulic drives located close to water high demands according to reliability, corrosion protection or enviromental compatibility have to be kept. These demands can be fulfilled by using modern piston rod coatings like rhe ceraplate coating, using special seals ad guiding elements for environment friendly hydraulic fluids or by using maintenance free spherical bearings in stainless steel quality.