21
Install the air vent to the highest point of the system.
Should there be more places with a risk of air pockets,
air vents should be installed also there.
It is recommended to amend the air vent with a local
pipe widening that calms down the stream and helps in
good separating bubbles from the fluid (see pic. 29).
A ball valve shall be always installed under the automatic
air vent valve, so that the automatic air vent can be clo-
sed after the system commissioning. Solar liquid leaks
can be avoided in case of system stagnation.
For an efficient removal of bubbles from the system it
is advisable to fit the pump station with an air separator
(see Fig. 28).
9. INSTALLATION OF AIR RELEASE VALVES
Fig. 28: Air separator
Fig. 29: Horizontal air separator
and an automatic air vent
Summary of Contents for KPG1H-ALC
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