8
Purpose and function
Purpose
FPS equipment is used to discharge condensate
from steam in steam-heated consumers.
In the equipment, the condensate is transported
by booster steam.
This means that the equipment can also dis-
charge condensate if the steam pressure is so
low that condensate can no longer be removed
by conventional steam traps.
FPS units are cyclical condensate-return units.
They require the upstream pressure to be lower
than the back pressure.
Function
Condensate fills the equipment, causing the ball
float to rise.
At the upper switchpoint, the ball float actuates
the valve control. This opens the booster steam
supply and closes the vent valve.
The booster steam forces the condensate out of
the equipment and the ball float falls.
During this pumping process, the flow of conden-
sate builds up in the supply line.
When the ball float reaches the lower switch-
point, the valve control stops the supply of boost-
er steam and the vent valve opens.
The flow of condensate accumulates in the
equipment and the process is repeated.
The non-return valve in the inlet prevents con-
densate and booster steam from flowing back
through the condensate inlet. The non-return
valve in the outlet prevents any return flow in the
condensate outlet.
Connections
Connection for condensate line:
◗
Butt-weld end of welding neck flange
Connection for booster steam venting pipe:
◗
Screwed socket
Name plate
On the name plate, you will find the following
information:
◗
Manufacturer
◗
Type designation
◗
Minimum operating temperature
◗
Maximum operating temperature
◗
Maximum service pressure
◗
Mark, e.g. CE, UKCA
(if required)
◗
Year of production
◗
Serial number
◗
Type of vessel
◗
Weight
◗
Applicable rules
◗
Test pressure
◗
Date of test
◗
Volume
