HEINZMANN Company Group

HEINZMANN Electric Drives
Robust electric motors up to 30 kW

Gas & Water Turbine Control

Control & Actuation

Control & Monitoring

HEINZMANN Automation
Marine Automation

CPK Automotive
Emission Control

Steam Turbine Control

Giro Engineering
Diesel Engine Components

Technologies empowering efficiency 

To ensure that combustion engines operate very efficiently, turbocharging is absolutely essential to improve the power output and the engine’s efficiency. For this reason, sophisticated control elements are required on the side of the hot engine exhaust gases in particular, in order to precisely and reliably control the boost pressure. HEINZMANN can provide this equipment, which includes all components required to control the wastegate.

  • Overview Wastegate Valves
  • Flat housing
  • Conical flange
  • Housing with flange

Wastegate Valves

The wastegate throttle valves are used to control turbocharged engines. The throttle valve determines the amount of exhaust gas driving the turbocharger’s turbine. This is because the load depends on the torque of the compressor wheel, which is connected to the turbine via a shaft. When closed, the throttle valve stops ensure a better seal and minimal leaks. This arrangement means that the blocking cannot occur in the closed position.

Wastegate Valves

  • Resistant to high temperatures and corrosion
  • Optimal sliding properties over a wide temperature range
  • Connection to the actuator can be established using a linkage or a shaft with a high-temperature coupling

Flat housing

Technical data

  • Diameter: 30, 40, 50, 60, 66, 70, 90 mm
  • Operating temperature: -40 ... +550 °C
  • Max. differential pressure: 5 bar abs.

Conical flange

Technical data

  • Diameter: 30, 40, 50, 60, 70 mm
  • Operating temperature: -40 ... +550 °C
  • Max. differential pressure: 5 bar abs.

Housing with flange

Technical data

  • Diameter: 120, 170, 200 mm
  • Operating temperature: -40 ... +550 °C
  • Max. differential pressure: 5 bar abs.
  • Turbocharger Bypass
  • DK 100 / StG 3
  • DK 100 / StG 3-PD
  • DK 140 / StG 2080-PD

Turbocharger bypass throttle valves have been specifically optimised for this field. They have been specially designed to withstand the higher differential pressures that occur in this application. The turbocharger bypass valves are also available with a return spring that acts in the other direction.


  • Fast response
  • No maintenance required

DK 100 / StG 3

Technical data

  • Output range stoichiometric: 70 ... 250 kW
  • Steady state torque: 1.5 Nm
  • Ø Throttle valve: 48 ... 68 mm
  • Boost pressure at valve: max. 5.8 bar abs.
  • Response time: max. 40 ms

DK 100 / StG 3-PD

Technical data

  • Voltage supply: 16 ... 32 VDC, nom. 24 VDC
  • Ambient temperature electronic fluid cooled: -40 ... +150 °C
  • Ambient temperature without cooling: -40 ... +110 °C
  • Ø Throttle Valve: 48 / 60 / 68 mm
  • Boost pressure at valve: max. 5.8 bar abs.
  • Response time: max. 40 ms

DK 140 / StG 2080-PD

Technical data

  • Voltage supply: 18 … 33 VDC
  • Ambient tempertaure: -25 … +90 °C
  • Ø Throttle valve: 85 mm
  • Boost pressure at valve: max. 8 bar (abs.)
  • Response time: 90 ms

More information

Technical Drawing

Data Sheet

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