Xylem FLOJET N51 0 Serie Instalación Y Operación página 3

MOUNTING
The FLOJET N51X0 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 Pump to desired fixture by screws through the mounting
bracket. Ports must be facing down.
HOSE CONNECTIONS
Product In - Use 3/8" (9.5 mm) I.D. reinforced, flexible, non-
collapsible hose or equivalent. Avoid sharp bends that could restrict
flow or cause hose to collapse under vacuum.
Product Out - Use 3/8" (9.5 mm) I.D. reinforced hose for discharge
tube.
Air In - Make sure air regulator is set to zero. Use 1/4"
(6.3 mm) I.D. reinforced hose. Connect "Air In" to air supply fitting
on regulator. If pumps are installed in an enclosed area, it is
recommended to connect a hose to the air discharge port (exhaust)
and vent air to atmosphere. (Requires 'small' exhaust port.)
FLEXIBLE HOSE
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.
RIGID PIPE
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OPERATION
At start-up, regulate air inlet pressure to desired setting. For most
installations 20 PSI (1.4 bar) inlet will be adequate, although DO
NOT go below 20 PSI (1.4 bar) and DO NOT EXCEED 80 PSI air inlet
pressure. Pump will operate according to air supply. Flow and pres-
sure can be adjusted by increasing or decreasing air inlet pressure
to accommodate varying product viscosities, length of lines or oth-
er 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 AIR INLET PRESSURE TO 20
PSI (1.4 BAR) ABOVE DISCHARGE PRESSURE.
CONTINUOUS OPERATION AT 120°F (49°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).
W A R N I N G
DO NOT PUMP GASOLINE OR
FLAMMABLE LIQUIDS WITH FLASH
POINT BELOW 100°F (37.8°C) OR
USE WHERE FLAMMABLE VAPORS
ARE PRESENT.
If used with C0
area is well ventilated.
CAUTION
Do not clean or service FLOJET pumps, hoses or
valves while the system is pressurized. Plastic air
inlet ports do not have a check valve. Prior to cleaning or ser-
vicing, 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
placed before the pump to limit water build-up.
or N be sure the
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