STEAM TRAP
EDUCATION CENTER

In this fossil fired power plant, cold reheat drains are used to remove condensate from the cold reheat line. This steam main is a high pressure / high temperature line in the plant. The cold reheat steam line runs from the exhaust side of the high pressure turbine back to the top side of the boiler where it is run through the reheat superheater. Cold reheat steam drains are situated on this line to remove start-up loads, hot running loads, and cool-down loads.

On cold reheat drain applications, the best steam trap design in the marketplace is the Velan Multi-Segmented Bimetallic Steam Trap. The cold reheat drain application will have a “high” start-up curve, followed by a “large” hot running load. The only other load that will be encountered will be a “high” cool-down load when the line is de-energized.

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

Velan will offer the “SSF” Series, “N” Series or “SPF” Series steam traps for cold reheat drain applications.

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