HALE FOAM MASTER 3.0, Описание, установка и руководство по эксплуатации

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-20
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
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: Installation
Figure 2-17. Check Valve Injector Fitting
Installation
CHECK VALVE
INJECTOR
FITTING
1 INCH NPT
THREADS
½ INCH NPT THREADS
(FOAM CONCENTRATE INLET)
HALE MANIFOLD,
PIPE TEE OR
WELD BOSS ON
PIPE
CORRECT
INCORRECT
CHECK VALVE/INJECTOR FITTING
BELOW HORIZONTAL PLANE
Figure 2-16. Check Valve/Injector Fitting
Position
6. Install the hose from the foam tank
outlet to the inlet of the strainer. The
inlet of the strainer is closer to the
operator panel and is oriented as shown
in figure 2-14. Wetting the ends of the
hose and fittings will help ease
installation on the hose fittings.
CAUTION: Make sure the foam tank and
foam concentrate suction hoses are
clean before making final connection to
foam pump. If necessary flush tank and
hoses prior to making connection.
7. Install the hose from the strainer outlet to
the inlet of the Hale FoamMaster foam
pump or selector valve.
CHECK VALVE/INJECTOR FITTING
The Hale check valve/injector fitting
supplied with the Hale FoamMaster system
meets NFPA requirements for a non-return
device in the foam injection system to
prevent back flow of water into the foam
concentrate tank. When properly installed
the brass and stainless steel construction
check valve/injector fitting ensures foam
concentrate is injected into the center of
the water flow for better mixing.
NOTE: Always position the check valve/
injector fitting at a horizontal or higher
angle to allow water to drain away from
the fitting (see figure 2-16). This will avoid
sediment deposits or the formation of an
ice plug.
The check valve/injector fitting MUST be
mounted in a location that is common to all
discharges which require foam concentrate
(see figure 2-18). The Hale FoamMaster
system does not permit a separate injection
point for each foam capable discharge.
Even though multiple flowsensors and
pressure sensors are installed on a particular
system, the check valve/injector fitting must
be installed before these components at
the inlet to their common manifold (refer to
figure 2-10).
The check valve/injector fitting has 1 inch
NPT threads on the outside to fit into the 1
inch NPT threaded connection on the Hale
mini manifold, maxi manifold, a pipe tee or
a 1 inch NPT weld fitting installed in the
discharge piping of the fire pump (see
figure 2-17). The inlet connection of the
check valve/injector fitting has ½ inch NPT
female threads.
FOAM CONCENTRATE INJECTION HOSE
Connect hose from the foam pump inject
port (see figure 2-19) to the inlet of the
check valve injector fitting. The hose and
fittings from the INJECT port to the check
valve injector fitting should have minimum
CHECK VALVE/INJECTOR FITTING
ABOVE HORIZONTAL PLANE