3
■
EPDT-320b
■
4. Operation
1.
At start-up, since the float is down, the valve is
closed. In this state, air in the system and piping is
discharged out through the air vent which is opened.
When condensate flows into the product, the float
lifts up and opens the valve, and then discharges
condensate. Air is continuously discharged out from
the air vent.
When steam flows into the product, internal pressure
of the air vent rises by steam temperature, and the
air vent closes. According to the amount of
condensate inflow, the float position moves up and
down changing the opening degree of the valve, and
thus condensate is continuously discharged. The
float moves down and the valve closes when
condensate inflow stops.
When air or non-condensable gas flows into the
product, it accumulates in the upper part of the
product.
When
temperature
of
air
or
non-condensable gas decreases with condensate
inflow, the air vent opens and discharges it to
outside of the product.
Then, operations 2 and 3 repeats according to the
inflow amount of condensate and air.
3. Air vent operation
2. Condensate discharging operation
1. Start-up of the operation
Float
Air vent
Valve
Air
Steam
Condensate
