Hale 5.0 FoamLogix - Manual (Page 10)

Ι−
4 Section
I
: Description
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
concentrate tanks. Examples of the various
Hale Foam system configurations are shown
in figures 1-1 through 1-7 at the end of this
section.
The available Air Dual Tank (ADT) valve for
the Hale Foam system is an air operated
foam tank selector valve that provides
selection of foam concentrate dependent
on fire ground operational demands. The
ADT is an integral part of the foam pump
and provides an electrical interlock for the
low tank level sensors and concentrate
injection rate. A panel mounted selector
toggle switch with indicator lights controls
foam concentrate tank selection and shows
which foam concentrate tank is in use.
The Manual Dual Tank (MDT
ΙΙ
) selector
valve is available for the Hale Foam systems
with dual tanks. The MDT
ΙΙ
is a panel
mounted manually operated selector that
provides selection of foam concentrate
dependent on fire ground operational
demands. The MDT
ΙΙ
also provides an
electrical interlock for the low tank level
sensors and concentrate injection rate. It
should be noted that the MDT
ΙΙ
is not
suitable for top mount operator panel
installations and some side operator panels
due to gravity feed requirements of foam
concentrate to the foam pump.
Selection of the desired foam concentrate
tank with the ADT panel mounted toggle
switch or MDT
ΙΙ
selector will automatically
change the foam concentrate injection
rate to the preset default rate for the
selected foam tank. No further operator
intervention is required.
Single tank foam systems can be
configured with a Manual Single Tank (MST)
selector which provides a flush function
connection to the foam system electronic
controls.
The ADT, MDT
ΙΙ
and MST all provide the
check valves and connection points to
provide foam pump flushing capabilities.
Strainers available for Hale FoamLogix Foam
systems protect the foam pump from debris
that might accumulate in the foam
concentrate tank. The standard in-line
strainer/valve assembly has a composite
nonmetallic housing with stainless steel
mesh strainer element. It is provided with a
service shutoff valve, mounting bracket.
The strainer and valve have 1-1/4 NPT
threads and is supplied with fittings for
connection of either 1-1/4 inch (32 mm) ID,
1 inch (25 mm) ID or ¾ inch (19 mm) ID
foam concentrate suction hose. The in-line
strainer/valve assembly is suitable for use
with both Class A and Class B foam
concentrates. The in-line strainer/valve
assembly is designed for installations where
the strainer is mounted in the foam pump
suction line and IS NOT subject to flushing
water pressure.
Hale FS series strainers are panel mounted
strainers with a 500 PSIG (34 BAR) pressure
rating suitable for use where flushing water
pressure will go through the strainer. The
FS15 strainer has ¾ inch NPT connection
ports and a 1-½ inch NST cap and is suitable
for use with Class A and low viscosity Class B
foam concentrates. The FS25 strainer has 1
inch NPT connection ports and a 2-½ inch
NST cap and is suitable for use with both
Class A and Class B foam concentrates.
All Hale FoamLogix Foam systems require a
flowsensor for operation.
WATER FLOW
MODEL 3.3 MODEL 5.0
FOAM
CONCENTRATE
(%)
0.1
0.2
0.3
0.5
1
3
6
GPM LPM
3300 12491
1650
6245
1100 4164
660 2498
330 1249
110 416
55 208
GPM LPM
5000 18925
2500
9463
1667 6310
1000 3785
500 1893
167 632
83 314
Table 1. Maximum Foam Solution Flows