SempellSempell benefits from more than 135 years of experience and delivers control, safety relief and isolation valves to conventional and nuclear power plants as well as the chemical industry.

With decades of expertise in thermodynamics, Sempell provides turbine bypass and startup control valves with unparalleled reliability to the OEM’s plant design engineer for applications in supercritical and ultra-supercritical power plants.

In addition, Sempell forged gate, globe and check valves serve the DIN and ASME power generation markets. Applying cutting edge material science and valve designs, Sempell isolation and non-return valves are designed for all types of power plants, including nuclear and supercritical plants, which operate at temperatures up to 720° C.

Within the nuclear power generation segment, Sempell pioneered new technology for pilot operated pressurizer safety valve systems on the new GEN III reactors, regardless of code. Sempell also provides other critical solutions for the nuclear industry, including system medium operated main steam isolation valves and pilot operated main steam safety valves.

Sempell offers its customer optimal solutions in all cases where high pressure, extreme temperatures and critical properties exit, especially where high safety regulations are required.

  • Control Valves
  • Safety Valves
  • Isolation Valves
  • Nuclear Valves
  • Actuators
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