ΙΙ
-7
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
ΙΙ
ΙΙΙΙ
ΙΙ
ΙΙ
: Installation
flanges. The Hale "115" flange type check
valve has a 4-
3
/
8
inch bolt circle that fits
standard Hale "115" flanges as well as 4-
3
/
8
inch bolt circle discharge flanges on other
pumps. These check valves are rated for
pressures up to 500 PSI (34 BAR) and flows
up to 750 GPM (2839 LPM). Use 2-½ or 3
inch NPT threaded "115" flanges for
mounting these check valves in piping runs.
Some installations may require higher flows
and larger diameter piping. Use a Hale 4
inch 2433 flange type check valve (Hale
P/N 038-1570-04-0) for these installations.
This check valve has an 8 bolt, 5-¾ inch bolt
circle and will fit pump discharge openings
and flanges that have this configuration.
The Hale 2433 check valve has a pressure
rating of 500 PSI (34 BAR) and a flow rating
of 1250 GPM (4731 LPM). The Hale 2433
style flange (Hale P/N 115-0040-00-0) has an
8 bolt, 5-¾ inch bolt circle and 4 inch NPT
threads for in-line mounting of the 4 inch
check valve.
FLUSHING WATER HOSE
Flush water connections for the Hale ADT,
Hale FoamMaster MDT
ΙΙ
or Hale MST must
be made using ½ inch inside diameter
tubing and appropriate fittings. The tubing
and fittings used must be capable of
withstanding the maximum fire pump
discharge pressure (500 PSI (34 BAR)
minimum) and should be compatible with
foam concentrates being used in the
system.
When the Hale ADT, Hale FoamMaster MDT
ΙΙ
or Hale MST is installed a check valve is
provided integral to the flushing water line
connection to provide protection against
contamination of the water system with
foam concentrate.
Hale recommends the use of one of the
above selector options to provide foam
system flushing capabilities, but if the Hale
FoamMaster system is ordered with the "no
tank" option the system installer must
provide proper hose, shutoff valve, check
valves and connections for flushing water
for the system to be NFPA compliant.
Additionally, when the Hale FoamMaster is
installed without a Hale provided selector
some operating and system protection
features will not be available.
FOAM DISCHARGE DRAINS
Drains must be provided from foam
capable discharge piping components to
prevent freezing in cold weather. When
designing the drain system care must be
taken to prevent contamination of the
water system with foam and the foam
concentrate with water. Some multiple
drain systems that allow individual drain
lines to communicate also allow foam to
bypass the installed check valves causing
contamination of fire pump and the water
or foam concentrate storage tanks.
Hale has an optional 7 port drain valve,
Model DV7 (Hale P/N 529-5420-00-0) that
provides individual drains with a single
control to use for applications where a
single point for multiple drains is required. If
a Hale DV7 drain valve is not used then
individual drain lines and valves for foam
capable discharge piping are
recommended. Hale type HD individual
drain valves (Hale P/N 538-0600-01-0) (used
without tees) are recommended.
ELECTRICAL REQUIREMENTS
The system installer must provide the primary
power wire and a ground strap for the Hale
FoamMaster system.
Primary power must be supplied from the
main apparatus battery to the distribution
box on the foam pump and motor
assembly. The Hale FoamMaster Model 5.0
and Model 3.3 each require minimum 60
AMP electrical service and the Hale
FoamMaster Model 3.0 requires minimum 40
AMP electrical service connected to the
distribution box.
Primary electrical power must be supplied
directly from the battery or the battery
