MOUNTING
The FLOJET G-57 Series self-priming pump should be
mounted in a dry and adequately ventilated area. This
pump can be mounted several feet from the tank, above
or below the fluid level. For most applications, no more
than 4 feet above the fluid level is recommended.
This
is not a submersible pump.
Secure Dump to desired fixture by screws through the
rubber grommets in the baseplate of the pump.
Ports
must be facing down.
Contact factory for mounting
bracket and hardware options.
HOSE CONNECTIONS
Product In - Use 3/8”. 1/2” or 3/4”. reinforced hose or
equivalent. Avoid sharp bends that could restrict flow or
cause hose to collapse under vacuum.
Product Out - Use reinforced 3/8”. 1/2” or 3/4” I.D. hose
for discharge tube. 3/4” must use 90° elbows when
using large muffler.
Gas In - Make sure gas regulator is set at zero. Use
reinforced 1/4” hose. connect “Gas In” to gas supply
fitting on regulator. If pumps are installed in an enclosed
area, it is recommended to connect a hose to the gas
discharge port (exhaust) and vent gas to atmosphere.
(Requires ‘small’ exhaust port)
PLUMBING
Use a flexible hose to avoid excess stress on pump
ports. DO NOT crimp or kink hose. All hose should be
the same size as the pump port fittings.
All fittings must be compatible with fluid being pumped.
It is recommended to use plastic fittings only.
The use of check valves in the plumbing system could
interfere with the priming ability of the pump. If
unavoidable, check valves in the pumping system must
have a cracking pressure of 2 PSI or less.
Use a minimum 40 mesh strainer or filter in the tank or
pump inlet line to keep large foreign particles out of the
system.
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.
WARNING
FLEXIBLE
HOSE
RIGID
PIPE
