ΙΙ
-21
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
ΙΙ
ΙΙΙΙ
ΙΙ
ΙΙ
: Installation
½ inch (13 mm) inside diameter and be
rated at 500 PSI (34 BAR) working pressure
(Aeroquip 2580-10 or equal).
BYPASS HOSE CONNECTION
A bypass port is provided on the discharge
side of the Hale ADT or a bypass valve is
mounted on the discharge of the foam
pump when the ADT option is not installed.
The bypass handle shall be accessible by
the pump operator during normal
operations.
The bypass valve is a 3-way directional
valve that selects where the output of the
foam pump will go. Determine which port is
the INJECT port (see figure 2-19) and which
port is the BYPASS port. The INJECT port is
identified on the bypass valve placard.
Look at the ports as you move the handle,
the flow should go from the center port to
Figure 2-19. Injection and Bypass Hose Connections
FOAM
CONCENTRATE
INLET
¾ INCH NPT
FOAM
PUMP
BYPASS
VALVE
INJECT PORT
½ INCH NPT
BYPASS PORT
½ INCH NPT
FOAM CONCENTRATE
INLET CONNECTION
FOAM PUMP NOT
SHOWN FOR
CLARITY
BYPASS VALVE
HANDLE
INJECT PORT
½ INCH NPT
BYPASS PORT
½ INCH NPT
HALE FOAMMASTER WITH NO TANK,
MST OR MDT
ΙΙ
OPTION
HALE FOAMMASTER WITH ADT OPTION
Figure 2-18. Injector Fitting Placement for Multiple Discharges with Single Flowsensor
FOAM
CONCENTRATE
INJECTION HOSE
WATER
FROM
PUMP
FOAM SOLUTION
DISCHARGE(S)
HALE MINI MANIFOLD, MAXI
MANIFOLD or INSTALLER
FABRICATED MANIFOLD
HALE HPF
SERIES
FLOWSENSOR
FOAM
SOLUTION
DISCHARGE(S)
FOAM INJECTION
CHECK VALVE/
INJECTOR FITTING
WATERWAY
CHECK VALVE
MINIMUM 5X THE
PIPE DIAMETER
BEFORE
FLOWSENSOR TEE
FOAM
SOLUTION
DISCHARGE(S)
FOAM SOLUTION
DISCHARGE(S)
FLUSHING WATER
PORT ½ INCH NPT
