11. Tracing Drains
In this fossil fired power plant, tracing drains are used to remove condensate
from the tracing system. These steam mains are typically low in pressure and
temperature. Typically, the tracing system steam lines runs from the downstream
side of the desuperheater valve to the farthest point of the fuel oil system.
Tracing system condensate drains are situated on gravitational low spots and
at the ends of these lines to remove start-up loads, hot running loads, and
cool-down loads.
On tracing drain applications, the best steam trap design
in the marketplace is the Velan Multi-Segmented Bimetallic Steam
Trap. The tracing system drain application will have a “moderate” start-up
curve, followed by a “low-load” hot running load. 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 tracing system drains can be very low
in pressure and temperature, customers tend to thread these applications.
Velan will offer the “Q” Series and “TS” Series steam
traps for tracing system drain applications.
Click on the following pressure
range for the appropriate Velan Series Steam Trap:
0-250 psig
Q Series |
0-250 psig
TS Series |