Use and setting of the false air valve, 13 use and setting of the false air valve – Karcher IV 100 - 55 M B1 User Manual
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English 5.906-587.0 Rev. 00 (05/14)
25
Note
A false air valve or a bypass valve is a valve that opens at
a certain adjustable negative pressure in order to be able
to vacuum with a constant air volume.
A Induction pipe
B False air / bypass valve
C Silencer
Suction performance per ~ 250 m³/h per vacuuming
point
Vacuum cleaner, performance e.g. 500 m³/h
False air valve closed
Suction performance ~ 250 m³/h
Vacuum cleaner, performance e.g. 500 m³/h
False air valve open
~ 250 m³/h via the false air valve. This way it is ensured
that the flow rate in the suction hose is almost the same as
during vacuuming with two vacuuming points.
1 Locknut
The adjustment is made via the lock nut. The valve is to be
adjusted in a way that it does not open with all vacuuming
points operated in parallel yet.
13 Use and setting of the false air valve