Turbine Bypass Systems

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Technical Data
4 – 24 “
Pressure Classes

ASME / ANSI Class 150 – 4500

Materials of Construction

Carbon steel (A105, A216 WCB) – standard
Alloy steel (F22, F91, A217 WC9, A217 C12A) – standard
Stainless steel (316H, A351 CF8M) – standard
Duplex steel
Exotic alloys
Other materials available upon request

In Compliance

B16.34 PED N & NPT – Nuclear Authorized

End Connections

Buttweld – standard
Raised-face flange – standard
Other end connections available upon request



IGCC – Ready and Able

Now keep gas turbine and heat recovery system generator (HRSG) online in the event of a steam turbine trip with the ValvTechnologies’ turbine bypass system (TBS). Purposefully designed for the new generation of combined-cycle power plants, our TBS combines the proven XactrolL® severe service control valve design with a state-of-the-art de-superheating control system. At the same time, the TBS facilitates fast HRSG and CT start-ups in peaking power plants. and helps these plants operate at turndown conditions far below the levels that can be achieved with standard governor systems.

Turbine bypass

For more information, please contact:

Linda Goodrich

More Posts

  • Operation at turndown conditions far below levels that can be achieved with standard governor systems
  • Guaranteed zero-leakage performance delivers repeatable isolation and preserves operating integrity
  • Outstanding control in critical combined cycle operation improves system efficiency and productivity
  • Assured drum level control stability during a trip event and faster stream turbine re-starts via improved control system
  • High-quality performance created by experienced design and ISO 9001-certified manufacturing

Various control packages available integral isolation