Hale Master Intake Valve - Manual (Page 19)

17
M
ASTER
I
NTAKE
V
ALVE
WARNING: Per NFPA1962 requirements,
large diameter hose used to supply a
pumper from a hydrant or another
pumper shall be connected to the
pumper(s) and hydrant with a slight
downward bend to avoid kinking when
the water is turned on.
WARNING: Per NFPA1962 requirements,
large diameter hose marked “SUPPLY
HOSE” 3-½ to 5 inches (89 to 127 mm)
diameter shall not be used at operating
pressures exceeding 185 PSI (13 BAR).
WARNING: Per NFPA1962 requirements,
large diameter hose marked “SUPPLY
HOSE” 6 inches (152 mm) diameter shall
not be used at operating pressures
exceeding 135 PSI (9 BAR).
WARNING: The suction of each
receiving pumper using large diameter
hose shall be equipped with a relief
valve with a maximum pressure setting
of not more than 10 PSI (0.7 BAR) over
the static pressure of the water source to
which it is connected or not more than
10 PSI (0.7 BAR) over the discharge
pressure of a supply pumper in relay. In
no event will the intake relief valve
pressure setting exceed the working
pressure of the hose being used.
WARNING: When initially charging large
diameter hose excessive air will be
present in the hose. This air must be bled
off while the hose is charging and prior
to opening the Hale MIV to prevent
receiving pump cavitation and possible
loss of prime.
WARNING: Large diameter hose
presents a tripping hazard. Use care
when working around hose when in use.
AIR BLEEDER VALVE
1. Using standard departmental operating
procedures connect large diameter
hose from the supply pumper to the
receiving pumper.
2. Make sure the Hale MIV on the receiving
pumper is in the CLOSED position.
3. Open air bleeder valve by turning the
valve handle ¼ turn counterclockwise to
the OPEN position(dashed lines). (See
figure 8 D).
4. Have supply pumper energize the large
diameter hose and observe the air
bleeder discharge tube end. When
water flows from the air bleeder
discharge tube end, close the air
bleeder valve by turning the valve
handle ¼ turn clockwise to the CLOSED
position.
5. Operate the Hale MIV using the
procedures that follow.
ELECTRIC MOTOR OPERATED VALVE
(HALE MIV-E)
1. Energize 12 vdc power to pump
operator panel.
NOTE: As the valve is traversing from the
CLOSED to OPEN position (or OPEN to
CLOSED position) the yellow lamp will be
illuminated.
WARNING: When the electric motor
driven valve is operated the manual
override handwheel will turn. Keep
hands, feet or loose clothing away from
the handwheel to prevent
entanglement.
4
OPERATION