6. Feedwater Heater Drains
In this fossil fired power plant, drains are used to remove condensate from the
feedwater heaters. This steam main is a high pressure / high temperature line
in the plant. Feedwater heaters use steam to heat the boiler feedwater before
it enters the steam drum. Feedwater heater drains are situated to remove start-up
loads, hot running loads, and cool-down loads.
On feedwater heater drain applications, the best steam trap design in the
marketplace is the Velan Piston and Multi-Segmented Bimetallic Steam Trap.
The feedwater heater drain application will have a “high” start-up
curve, followed by a “large” load of condensate during operation.
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 feedwater heater drains can be very high in pressure
and temperature, customers tend to weld these applications. Velan offers steam
traps and “Piping Kings” in for feedwater heater drains in A105
Carbon Steel.
Velan will offer the “SP” Series or “SPF” Series
steam traps for feedwater heater drain applications.
Click on the following pressure range for the appropriate Velan Series Steam
Trap:
0-1500 psig
SP Series |
0-1500 psig
SPF Series |
Click on the icon to learn more about Velan
Piston and Bimetallic Design
|
Velan will offer the “Piping King” by-passable steam trap station
package for feedwater heater drain applications.
Click
on the Velan “Piping King” icon to learn more about Velan “Piping
Kings”:
Click on the Velan “Piping King” icon to view a
dimensional datasheet: