Combined Cycle Power Plants

We supply custom-engineered HP/IP/LP turbine bypass stations for combined cycle power plants, designed for various operating conditions, including continuous bypass operation (without power generation), transient operation (start-up) and turbine trips (emergency shutdowns). Our systems comply with PED and ASME requirements and ensure safe plant operation.

Design in accordance with the Pressure Equipment Directive (PED)

Our scope of supply in accordance with the Pressure Equipment Directive (PED) includes HP bypass valves according to DIN ISO 4126-5, equipped with a steam pressure testing device and a fail-safe-open function, as well as hydraulically operated reheater safety valves with spring-assisted opening.

For IP and LP applications, we provide solutions that can also be combined with dump tubes and/or optional upstream shut-off valves.

ASME safety concept

All systems designed in accordance with ASME standards provide dedicated safety functions to protect the turbine (HP) and the condenser (IP/LP), featuring Fail-Safe-Open (HP) and Fail-Safe-Close (IP/LP) functionality.

Designed for Modern Combined Cycle Power Plants (CCPP)

Our components are designed for the latest generation of combined cycle power plants, operating at pressures of up to approximately 180 bar and temperatures of up to 635 °C. They are optimized for plants equipped with either air-cooled or water-cooled condensers.

Depending on customer requirements and specifications, we offer our own hydraulic actuators or pneumatic solutions.

Our scope of supply can also be extended to include minimum flow control valves, desuperheaters, and feedwater control valves.