STEAM TRAP
EDUCATION CENTER

In this fossil fired power plant, turbine extraction drains are used to remove condensate from the turbine extraction lines. These steam mains vary in pressure in temperature, depending on which stage of the turbine they are servicing. The turbine extraction steam lines runs from the exhaust side of the intermediate and low pressure stages of the turbine, to various heaters. Turbine extractions steam drains are situated on this line to remove start-up loads, hot running loads, and cool-down loads.

On turbine extraction applications, the best steam trap design in the marketplace is the Velan Multi-Segmented Bimetallic Steam Trap. The turbine extraction drain application will have a “moderate” start-up curve, followed by a “low-load” hot running load. If there is superheat in the main, there will be “no-load” of condensate at the steam trap. The only other load that will be encountered will be a moderate cool-down load when the line is de-energized.

Due to the fact that turbine extraction drains can be high in pressure and temperature, customers tend to weld these applications. Velan offers steam traps and “Piping Kings” in for turbine extraction drains in A105 Carbon Steel.

Velan will offer the “SF” Series, “SSF” Series, and “N” Series steam traps for turbine extraction drain applications.

Click on the following pressure range for the appropriate Velan Series Steam Trap: