6
Typographic features of safety
notes
Danger note
DANGER
Notes with the heading DANGER warn
against imminent dangerous situations
that can lead to death or serious injuries.
WARNING
Notes with the heading WARNING warn
against possibly dangerous situations
that could lead to death or serious
injuries.
CAUTION
Notes with the heading CAUTION warn
against dangerous situations that could
lead to minor or moderate injuries.
Information on environmental and property
damage
Attention!
This note warns against situations that
may lead to environmental and/or
property damage.
Scope of supply and unit
specification
Scope of supply
Our unit is delivered ready for assembly.
Task and function
Purpose
GESTRA's steam-powered condensate return
units are designed for lifting condensate and
process fluids. Steam, air or compressed gas is
used to lift liquids in an electronically controlled
way.
Function
The condensate flows into the upright
cylindrical tank, displacing the air through a
solenoid valve.
The tank is equipped with a multiple electrode
type NRGS. As soon as the water level reaches
the upper electrode tip (= max. water level), the
solenoid valve in the vent line is closed by an
amplifier and simultaneously the solenoid valve
in the booster-steam line (introduced from
above into the tank) is opened.
The flowing steam pushes the condensate via
the condensate main into the condensate tank.
The condensate level sinks and when the lower
electrode tip emerges, the solenoid valve in the
booster-steam line is closed and the solenoid
valve in the vent line opened. The cycle then
repeats itself.
Before entering the condensate-return unit the
condensate is collected in a condensate header
to be provided on site. The condensate header
must be equipped with a vent in order to ensure
perfect air venting, especially if condensates of
different pressure classes are fed together.
Note that condensate inlet and outlet lines have
to be fitted with GESTRA non-return valves
type RK, the condensate return unit must be
equipped with a pressure gauge and a shut-off
valve with regulating cone must be installed in
the booster steam line. This arrangement
ensures that the required booster steam
pressure can be adjusted according to the
length of the pressurised condensate line and
the back pressure that must be overcome.
Description
Summary of Contents for KH
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