FLOJET N5100 Series Guide

20 ICON, FOOTHILL RANCH, CA
CO2 OR DRY COMPRESSED AIR OPERATED
MODEL : N5100-XXX
OPERATING PRESSURE 20 TO 80 PSI
6.18
(157) 2.42
(61)
2.22
(56)
1.00
(25)
0.77
(19)
2.89
(74)
1.98
(50)
4.14
(105)
PRODUCT DATA
Pump Design ............................................Duplex Diaphragm
Wetted Parts
Diaphragm Material ....................Santoprene®, Viton ® or Buna
Check Valve Materials .................... Santoprene®, Viton ® or Buna
Housing material ........................................Acetal Copolymer
Ports ............................Gas Inlet & Outlet 1/4” (6.3 mm) Barb
Product Inlet 3/8” (9.5 mm) Barb
Product Outlet 3/8” (9.5 mm) Barb
Net Weight ....................................................1.10 lb. (0.5 Kg)
PERFORMANCE SPECIFICATIONS
PUMP
Liquid Temperature Min ......................................40°F (4.4°C)
............................Max ................................120°F (48.9°C)
Priming ..............Dry ......................................28 ft. (8.5 m)
............................Wet ....................................32 ft. (9.8 m)
Flow Rates ........Max ............Up to 1.92 GPM (7.3 L/min)
Gas Supply Pressure ............20 to 80 PSI (1.4 to 5.6 bar)
Noise Level ........Max ................................................87dB
STANDARD MODELS
N5100-010 ..........Buna
N5100-020 ..........Viton®
N5100-030 ..........Santoprene®
DESCRIPTION
FLOJET Industrial N5100 Series Pumps are designed for
light general commercial and industrial applications.
These pumps are constructed from a selection of
materials for handling a broad range of chemicals.
Allowed fluids for Not Allowed fluids for
Santoprene®materials Santoprene®materials
Potable Water, Oils, Solvents, Soaps with
Alkaline, Soaps
Solvents, D-Limonene, Acids,
Alcohols, Ketones Aromatic Hydrocarbons
Allowed fluids for Buna Not Allowed fluids for
& Viton®materials Buna & Viton®materials
Oils, Solvents, D-Limonene, Ketones, Acetones,
Aromatic & Halogenated Automotive Brake Fluid,
Hydrocarbons Ammonia, Ethanol, Acids
®A registered trade mark of Monsanto Co.
®A registered trade mark of I.E. DuPont Co.
Santoprene, Buna & Viton Material with 1/2” Ports
N5100 Series
Industrial Air Driven Pump
DIMENSIONAL DRAWING
Inches (millimeters)
Dimensional tolerances
± 0.06 inches
Consult factory if precise
details are required.
40
(2.8)
20
(1.4)
60
(4.1)
80
(5.5)
Flow in GPM (l/min)
*Indicates Air Inlet Pressure in PSI
Pressure in PSI (Bar)
00.5
(1.9)
1.0
(3.8)
1.5
(5.7)
2.0
(7.6)
3.0
(11.4)
2.5
(9.5)
80*
60*
40*
20*
INSTALLATION & OPERATION INFORMATION FOR MODELS N5100XXX
N5100 Series Industrial Air Driven Pump

MOUNTING
The FLOJET N5100 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
mountng bracket. Ports must be facing down.
HOSE CONNECTIONS
Product In - Use 3/8”. reinforced, flexible, non-
collapsible hose or equivalent. Avoid sharp bends that
could restrict flow or cause hose to collapse under
vacuum.
Product Out - Use reinforced 3/8”. I.D. hose for
discharge tube.
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 80 PSI (5.6 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 C02or N2be sure the area is
well ventilated.
CAUTION:
Do not clean or service FLOJET pumps, hoses or valves
while the system is pressurized. Plastic CO2air 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

DISASSEMBLY PROCEDURE
Remove all gas lines and suction/discharge fittings from
pump. This is accomplished by using a flatbladed
screwdriver. Slide the retaining clips away from the gas
“in,” suction and discharge fittings. Then pull the fitting
away from pump body.
Using a 5/16” socket, remove the 4 nuts and washers
and pull out the body bolts.
The end caps, mounting brackets will separate from the
pump. Grab a piston in each hand and twist each side
counterclockwise. Remove the piston, diaphragm,
piston seal and retaining washer from one side of the
drive shaft.
Place drive shaft into a vise with wood block jaws and
rotate counterclockwise to release old diaphragm.
Install new diaphragm and hand tighten.
CAUTION: do not damage the surface of the drive shaft.
Using a razor blade or sharp knife, cut label on the front
of the pump along the seam in center of body.
With pump label facing you, slowly pull body apart.
Disconnect exhaust hose from muffler and pull spool
valve stem from body. Discard body gasket and old
spool valve subassembly.
To assemble new spool valve subassembly, insert
internal exhaust hose spring into exhaust hose. Connect
hose to spool valve. Mount torsion springs into spool
valve straight side first. Push torsion springs through
spool valve to bent/hook end. Lubricate spool valve
stem and insert stem into left side of pump body making
sure torsion springs are positioned in retaining niches.
Carefully push spool valve into pump until torsion
springs snap inward and lock into place. Reconnect
exhaust hose to muffler fitting.
CAUTION: if exhaust hose is not reconnected to
muffler fitting, pump will not operate.
Position new body gasket and the two O-rings and
press pump body together. Reinsert gas “in’’ fitting,
discharge and suction fitting into pump and slide
retainer clips over fittings until they snap into place. This
will help hold the pump together during assembly.
Lubricate and carefully reinsert the drive shaft through
the pump body. Install new diaphragm and piston
assembly onto drive shaft and hand tighten. Note
positioning and direction each part is facing.
Position end caps onto pump body. Insert body bolts
through pump body. Install washer, split washer and hex
nut on each bolt.
Note: Remember to insert mounting bracket into niches
on the body before installing end caps and bolts.
With a 5/16” nut driver, alternately tighten each body bolt
maintaining even pressure around pump body. Using a
5/16” torque wrench tighten body bolts to 20 inch lbs.
1
1
2
2
20466-007
(Santo) ONLY 4
3
4
5
5 5
5
2
54x 220466-007
(Santo) ONLY
4x
Key Part No. Description Qty
1 20467-005 Kit, Check Valve Assembly, Buna 4
20467-006 Kit, Check Valve Assembly, Viton®4
20467-007 Kit, Check Valve Assembly, Santo®4
2 20466-005 Kit, Diaphragm (incl. Pistons), Viton®2
20466-006 Kit, Diaphragm (incl. Pistons), Buna 2
20466-007 Kit, Diaphragm (incl. Pistons), Santo®2
Key Part No. Description Qty
3 20469-005 Kit, Spool Valve & Springs, Viton®1
20469-006 Kit, Spool Valve & Springs, Buna 1
20469-007 Kit, Spool Valve & Springs, EPDM 1
4 20468-005 Kit, End Caps 2
5 20465-001 Kit, Hardware 1
MODEL N5100 SERIES EXPLODED VIEW

© Copyright 2003, ITT Industries Printed in U.S.A. All Rights Reserved Form: 81000-363 02/03
WARRANTY
FLOJET warrants this product to be free of defects in material and/or
workmanship for a period of one year after purchase by the customer
from FLOJET. During this one year warranty period, FLOJET will at its
option, at no charge to the customer, repair or replace this product if
found defective, with a new or reconditioned product, but not to
include costs of removal or installation. No product will be accepted
for return without a return material authorization number. All return
goods must be shipped with transportation charges prepaid. This is
only a summary of our Limited Warranty. For a copy of our complete
warranty, please request Form No. 100-101.
RETURN PROCEDURE
Prior to returning any product to FLOJET, call customer service for an
authorization number. This number must be written on the outside
of the shipping package. Place a note inside the package with an
explanation regarding the reason for return as well as the
authorization number. Include your name, address and phone number.
TROUBLESHOOTING CHART
Symptom Possible Cause(s) Corrective Action
Pump will Pump will not start (stalls) 1. Inadequate air supply (20 PSI Min.) 1. Increase air inlet pressure
2. Contaminated air supply 2. An air dryer might be required
3. Ruptured diaphragm (2) 3. Replace diaphragm (2)
4. Check spool valve for wear 4. Replace spool valve if necessary
Pump runs, but no fluid 1. A leak or break in the product 1. Replace product line
inlet line
2. A leak or break in the product 2. Replace product line
discharge line
Pump leaks through exhaust port 1. Leak at upper exhaust port o-ring 1. Replace exhaust port
2. Inadequate slide lubrication 2. Replace with spool valve kit
Flow rate is low 1. Tubing or hose is damaged or 1. Clean or replace
blocked
2. Check viscosity of medium 2. Reduce viscosity of medium,
being pumped increase hose diameter or contact
factory for recommendation
3. Check valves not seated correctly (1) 3. Reinstall check valves (1)
Pump leaks 1. Ruptured or worn out diaphragm (2) 1. Replace diaphragm (2)
2. Pump housing screws not torqued 2. Torque screws to 20 in lb
adequately
UNITED KINGDOM
Flojet, Unit 1, Avant Business Centre
Denbigh West Industrial Estate
Milton Keynes, Bucks, England MK1 1DL
Tel: [phone]
Fax: [phone]
CANADA
Fluid Products Canada
55 Royal Road
Guelph, Ontario N1H 1T1
Tel: [phone]
Fax: [phone]
JAPAN
NHK Jabsco Company Ltd.
3-21-10, Shin-Yokohama
Kohoku-Ku, Yokohama, 222
Tel: [phone]
Fax: [phone]
U.S.A.
Flojet
20 Icon
Foothill Ranch, CA 92610-3000
Tel: [phone]
Fax: [phone]
GERMANY
Jabsco GmbH
Oststrasse 28
22844 Norderstedt
Tel: [phone]
Fax: [phone]