Mechanical balance of plant

The critical mechanical infrastructure engineered to perfectly match the requirements of turbine operation in any circumstances.

A Tier-1 hydro-mechanical unit is only as reliable as the auxiliary infrastructure supporting it. Litostroj eliminates the integration risks of multi-vendor procurement by designing the complete mechanical balance of plant in-house.

From high-pressure Hydraulic Power Units (HPU) through cooling, drainage and lubrication systems all the way to compressed air systems, we deliver the essential mechanical ecosystem required for safe, continuous keyturn generation.

Operational parameters

Hydraulic power units:Operating pressures up to 25 MPa in general and up to 16 MPa for Kaplan runners

Water conveying systemsAdvanced systems with feedback loops enable precise control of the equipment.

Environmental safetyFully integrated automatic oil separators and closed-loop cooling.

Compressed air systemsA powerplant service air or advanced reversible unit air depression system

Hydraulic part of governor

Engineered for actuator activation, governed by electronic control inputs.

Hydraulic power units (HPU)

Precision hydraulic governor systems, designed for autonomous speed regulation and dynamic load control of hydroelectric turbines. Engineered for instantaneous response to grid frequency deviations and load transients, ensuring optimal turbine performance across fluctuating demand profiles.

Integrated overspeed protection and pressure-surge mitigation safeguard mechanical integrity, while advanced hydraulic logic maximizes generation efficiency and extends asset lifecycle under continuous operational stress.

Water conveying systems

Cooling systems

Cooling systems, engineered for thermal regulation of turbine bearings, generators, and hydraulic assemblies. Designed for efficient heat dissipation during sustained operation, preventing thermal overload that compromises equipment integrity and reduces energy conversion efficiency.

Integrated thermal management ensures extended component lifespan, consistent performance output, and safe operation under continuous high-demand regimes.

Drainage & ecology

Plant-wide drainage networks integrated with automatic oil separators effectively manage contaminated water drainage, preventing costly damage to mechanical components.

With reliable drainage system your facility operates safely and efficiently while minimizing repair expenses and downtime.

Lubrication systems

Precision lubrication systems, engineered for turbine bearing protection and mechanical friction mitigation. Designed to deliver controlled lubricant flow at optimal pressure and temperature to all critical bearing interfaces, reducing frictional losses and preserving shaft alignment integrity.

Integrated reliability ensures continuous operation, minimized maintenance intervals, and extended asset longevity under high-load conditions.

Compressed air systems

Compressed air systems, engineered for cavitation mitigation, efficiency optimization, blow-down operations, valve actuation, and facility-wide pneumatic control.

Designed for precise pressure regulation in turbine discharge passages, reducing maintenance overhead and extending equipment service life. Ensures continuous, reliable, and cost-effective hydroelectric operation.