AWG I Operating manual I Fittings I
Inductors Z2, Z4 and Z8
DESCRIPTION
M1061B10 I Rev. 01-02/20
ENGLISH
27 / 40
3
DESCRIPTION
3.1 Function
The
AWG Inductors are used to feed liquid foam concentrates into a
hose line. The inductors are intended for connection to foam branch
pipes in accordance with DIN EN 16712-3, used to produce low or me-
dium expansion foam.
The main amount of the water entering at high speed through the suc-
tion chamber generates through the Venturi principle a negative pres-
sure, which causes the foam concentrate to be aspirated via a Storz
D-coupling.
The required admixing rate is chosen by rotating the setting scale of
the admixing rate control.
A non-return valve in the suction inlet prevents ingress of water into the
foam line when the foam nozzle is closed.
3.2 Intended
use
Use in an extinguishing system for fighting fires of fire class A
Fire class B: Use in an extinguishing system for fighting fires involv-
ing non-polar liquids, e.g. petrol and oil, as well as fighting fires in-
volving polar liquids
Aspiration of synthetic multi-grade foam agents
Aspiration of additives
Only use the device in technically sound condition and in accordance
with the intended purpose and with safety and potential dangers in
mind.
3.3 Foreseeable
misuse
Use of unsuitable foam agents or additives
Conversion or modification
Operation in technically unsound condition
Operation outside the approved characteristic values
Fitting of accessories that are not approved or not suitable for the
operating conditions
