MOUNTING & PLUMBING
Flojet’s 10 GPM Dual and 20 GPM quatro pumps should be
mounted in a dry and adequately ventilated area. Since these
are self priming pumps they can be mounted several feet from
the tank above or below the liquid level. These can be
mounted either on the floor or on the wall. For most
applications, mounting at no more than 4 feet above the liquid
level. this is not a submersible pump.
Secure pump system to desired fixture by screws through the
baseplate of the pump bracket.
Use flexible hoses to avoid excess stress on the pump ports.
Do not crimp or kink hoses. All hoses should be the same size
as the pump port fittings. Fittings must be compatible with
liquid being pumped. Use plastic fittings. Avoid sharp bends
that could restrict flow or cause hose to collapse under
vacuum. Use reinforced hoses.
Make sure gas regulator is set at zero. Use reinforced 1/4” hose
to connect to gas supply from regulator to the ‘Gas In’ port.
The exhaust could be vented to atmosphere or through a muffler.
Use of check valves (especially with a cracking pressure >
2psi) could interfere with priming capability of the pumps. Use
a minimum 40 mesh strainer before the pump inlet.
OPERATION
At start-up, regulate gas pressure to desired setting. For most
installations 20 PSI (1.4 bar) inlet will be adequate, although
DO NOT go below 20 PSI. Pump will operate according to air
supply. Flow and pressure can be adjusted by increasing or
decreasing gas pressure to accommodate varying product
viscosities, length of lines or other installation conditions.
Review flow curves located on page 1 for further assistance.
High viscosity fluids and hose length will limit priming
distance.
IF PUMP IS T0 BE USED IN HIGH FLOW, LOW
PRESSURE APPLICATIONS, ADJUST GAS PRESSURE TO 20
PSI (1.38 BAR) ABOVE DISCHARGE PRESSURE.
CAUTION: DO NOT EXCEED 100 PSI (6.9 bar) GAS INLET
PRESSURE.
CONTINUOUS OPERATION AT 120°F (48.9°C) WILL
REDUCE PUMP LIFE.
AIR MUST BE DRY AND OIL FREE.
Compressors must have dryers and/or a water separator in
the air distribution system. Pumps that fail due to water in the
air chamber will not be covered under the limited warranty.
GENERAL SAFETY INFORMATION
Protect yourself and others by observing all safety
information. Follow all safety codes and the Occupational
Safety and Health Act (OSHA).
DO NOT PUMP GASOLINE OR FLAMMABLE
LIQUIDS OR USE WHERE FLAMMABLE
VAPORS ARE PRESENT.
If used with C0
2
or N
2
be sure the area is well
ventilated.
CAUTION:
Do not clean or service FLOJET pumps, hoses or valves while
the system is pressurized. Plastic CO
2
air inlet ports do not
have a check valve. Prior to cleaning or servicing, purge the
pump by carefully tilting the pump so ports are facing up and
remove suction line from source. Turn air off and disconnect
air inlet line. (Brass air inlet ports have a check valve)
PREVENTIVE MAINTENANCE TIPS
Tips to help prolong your pump’s life.
• If pumping liquid other than water. pump should be flushed
with water (if applicable) after every use.
• Before freezing conditions occur. pump must be liquid free.
• If mounting pump in an outdoor environment. shield pump
from environmental extremes (i.e. sunlight. water from
washdown spray, rain, etc.).
• When using an air compressor. use an inline air dryer before
the pump to limit water build-up.
10 GPM (DUAL) AND 20 GPM (QUATRO)
DISASSEMBLY PROCEDURE
Remove the gas (AIR IN) lines and liquid suction and
discharge lines from the Dual or Quatro pump systems. You
can then disconnect the suction and discharge manifolds from
the pumps. For the Dual pump systems this is accomplished
simply by sliding the retainer clips on the pump and pulling the
manifolds away form the pump. For Quatro pump systems
you will have to take off the screws holding the pumps on any
one side. That will create room for the pumps to be pulled
away from the manifold after sliding the retainer clips on these
pumps. The AIR IN fitting can also be disengaged from each
of the pumps similary by sliding the retainer clip. The muffler
also can be removed by sliding its retainer clip.
ASSEMBLY PROCEDURE
In order to replace a pump you will then need to remove the
screws holding the pump to the bracket.
PLEASE MAKE
ABSOLUTELY SURE THAT YOU REPLACE A PUMP WITH
ANOTHER PUMP WITH EXACTLY THE SAME PART
NUMBER. EVEN THOUGH THE PUMPS LOOK SIMILAR ON
THE OUTSIDE, THE INTERNAL PARTS ARE DIFFERENT.
When putting the system back together you go in the reverse
order by putting the pumps together first and the fittings in the
end. You need to make sure that each fitting/manifold port has
the O-ring in the groove and the retainer clip is pushed back
in the lock position. Also make sure the pumps are securely
fastened to the bracket. Ensure you have proper sealing on
the fittings that are threaded into the ports. Then you may
connect the gas/air in and liquid tubes.
If you want to repair the G-57 pumps, please refer to the
instructions on page 3 of this manual .
WARNING
FLEXIBLE
HOSE
RIGID
PIPE