Ingersoll-Rand 670042 user guide

OPERATOR’S MANUAL 670042

INCLUDING: OPERATION, INSTALLATION & MAINTENANCE

1/2" DIAPHRAGM PUMP

U.L. LISTED, 1:1 RATIO (METALLIC)

READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.

It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.

SERVICE KITS

637448 for  uid section repair (see page 4).
637428 for air section repair (see page 6).

PUMP DATA

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670042

Application . . . . . . . . . . . . . . . Diesel Fuel, Kerosene, Aviation Fuel,

Fuel Oil and Unleaded Fuel.

Pump Type . . . . . . . . . . . . . . . . U.L. Listed Metallic Air Operated

Double Diaphragm for use with Pe­troleum Product Dispensing Systems

Material . . . . . . . . . . . . . . . . . . . see Model Description Chart

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.36 lbs (4.70 kgs)

Maximum Air Inlet Pressure . . . . . . . . . . . 50 p.s.i.g. (3.4 bar)

Maximum Material Inlet Pressure . . . . . . 10 p.s.i.g. (0.69 bar)

Maximum Outlet Pressure . . . . . . . . . . . . . 50 p.s.i.g. (3.4 bar)

Air Consumption @ 40 p.s.i. . . . . . . . . . . . . . 1 c.f.m. / gallon (approx.)

Maximum Flow Rate

Displacement / Cycle @ 100 p.s.i.g. . . . . 0.039 gal. (0.15 lit.)

Maximum Particle Size . . . . . . . . . . . . . . . . 3/32” dia. (2.4 mm)

Maximum Temperature Limits (diaphragm / ball / seat mate-

rial)

Viton® . . . . . . . . . . . . . . . . . . . . . . . . . -40° to 350° F (-40° to 177° C)

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . see page 8

Noise Level @ 70 p.s.i., 60 c.p.m. . . . . . . . . . 75.0 db(A)

The pump sound pressure levels published here have been updated to

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an Equivalent Continuous Sound Level (L
S1.13-1971, CAGI-PNEUROP S5.1 using four microphone locations.

( ooded inlet)

. . . . . 12.0 g.p.m. (45.4 l.p.m.)

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) to meet the intent of ANSI

Aeq

MODEL DESCRIPTION CHART

RELEASED: 1-25-07
REVISED: 8-27-08
(REV. 02)

Figure 1

INGERSOLL RAND COMPANY LTD

P.O. BOX 151 y ONE ARO CENTER y BRYAN, OHIO 43506-0151

 [phone] y FAX [phone] © 2008 CCN 15260748

 uids.ingersollrand.com

Center Section Material

Aluminum

Fluid Connection

1/2 - 14 N.P.T.F. - 1

Fluid Cap & Manifold Material

Aluminum

Hardware Material

Stainless Steel

Seat Material

Aluminum

Ball Material

Viton

Diaphragm Material

Viton

OPERATING AND SAFETY PRECAUTIONS

READ, UNDERSTAND AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.

EXCESSIVE AIR PRESSURE
STATIC SPARK

WARNING

injury, pump damage or property damage.
Do not exceed the maximum inlet air pressure as stated on

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the pump model plate.
Be sure material hoses and other components are able to

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withstand  uid pressures developed by this pump. Check all
hoses for damage or wear. Be certain dispensing device is
clean and in proper working condition.

WARNING

severe injury or death. Ground pump and pumping system.
Use the pump grounding screw provided. Use ARO® part

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no. 66885-1 ground kit or connect a suitable ground wire
(12 ga. min.) to a good earth ground source.
Sparks can ignite  ammable material and vapors.

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The pumping system and object being sprayed must be

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grounded when it is pumping, flushing, recirculating or
spraying flammable materials such as paints, solvents,
lacquers, etc. or used in a location where surrounding atmo­sphere is conducive to spontaneous combustion. Ground the
dispensing valve or device, containers, hoses and any object
to which material is being pumped.
Secure pump, connections and all contact points to avoid

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vibration and generation of contact or static spark.
Consult local building codes and electrical codes for spe-

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ci c grounding requirements.
After grounding, periodically verify continuity of electrical

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path to ground. Test with an ohmmeter from each compo­nent (e.g., hoses, pump, clamps, container, spray gun, etc.)
to ground to insure continuity. Ohmmeter should show 0.1
ohms or less.
Submerse the outlet hose end, dispensing valve or device

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in the material being dispensed if possible. (Avoid free
streaming of material being dispensed.)
Use hoses incorporating a static wire.

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Use proper ventilation.

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Keep inflammables away from heat, open flames and

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sparks.
Keep containers closed when not in use.

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WARNING

cause severe injury. Pipe exhaust away from work area and
personnel.
In the event of a diaphragm rupture, material can be forced

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out of the air exhaust mu er.
Pipe the exhaust to a safe remote location when pumping

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hazardous or in ammable materials.
Use a grounded 3/8” minimum i.d. hose between the pump

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and the mu er.

WARNING

injury or property damage. Do not service or clean pump,
hoses or dispensing valve while the system is pressurized.
Disconnect air supply line and relieve pressure from the

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system by opening dispensing valve or device and / or
carefully and slowly loosening and removing outlet hose or
piping from pump.

WARNING

jury or property damage. Do not attempt to return a pump
to the factory or service center that contains hazardous
material. Safe handling practices must comply with local
and national laws and safety code requirements.

EXCESSIVE AIR PRESSURE. Can cause personal

STATIC SPARK. Can cause explosion resulting in

Pump exhaust may contain contaminants. Can

HAZARDOUS PRESSURE. Can result in serious

HAZARDOUS MATERIALS. Can cause serious in-

HAZARDOUS MATERIALS
HAZARDOUS PRESSURE

Obtain Material Safety Data Sheets on all materials from

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the supplier for proper handling instructions.

WARNING

num parts cannot be used with 1,1,1-trichloroethane, meth­ylene chloride or other halogenated hydrocarbon solvents
which may react and explode.
Check pump motor section, fluid caps, manifolds and all

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wetted parts to assure compatibility before using with sol­vents of this type.

WARNING

containing aluminum wetted parts with food products
for human consumption. Plated parts can contain trace
amounts of lead.

CAUTION

wetted parts and the substance being pumped,  ushed or
recirculated. Chemical compatibility may change with tem­perature and concentration of the chemical(s) within the
substances being pumped, flushed or circulated. For spe­ci c  uid compatibility, consult the chemical manufacturer.

CAUTION

stress only. Certain chemicals will signi cantly reduce max­imum safe operating temperature. Consult the chemical
manufacturer for chemical compatibility and temperature
limits. Refer to PUMP DATA on page 1 of this manual.

CAUTION

been trained for safe working practices, understand it’s
limitations, and wear safety goggles / equipment when re­quired.

CAUTION

the piping system. Be certain the system components are
properly supported to prevent stress on the pump parts.
Suction and discharge connections should be  exible con-

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nections (such as hose), not rigid piped, and should be com­patible with the substance being pumped.

CAUTION

not allow pump to operate when out of material for long
periods of time.
Disconnect air line from pump when system sits idle for

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long periods of time.

CAUTION

sure compatible pressure rating and longest service life.

NOTICE

pump may not prime properly if the balls do not check by
gravity upon start-up.

NOTICE

of housing and gasket materials may cause fasteners to
loosen. Re-torque all fasteners to insure against  uid or air
leakage.

NOTICE

request: “Static Spark” pn \ 93616-1, Diaphragm Rupture”
pn \ 93122.

WARNING

EXPLOSION HAZARD. Models containing alumi-

MISAPPLICATION HAZARD. Do not use models

Verify the chemical compatibility of the pump

Maximum temperatures are based on mechanical

Be certain all operators of this equipment have

Do not use the pump for the structural support of

Prevent unnecessary damage to the pump. Do

Use only genuine ARO replacement parts to as-

Install the pump in the vertical position. The

Re-torque all fasteners before operation. Creep

Replacement warning labels are available upon

= Hazards or unsafe practices which

could result in severe personal injury,
death or substantial property damage.

CAUTION

= Hazards or unsafe practices which

could result in minor personal injury,
product or property damage.

NOTICE

= Important installation, operation or

maintenance information.

Page 2 of 8 670042 (en)

GENERAL DESCRIPTION

The ARO U.L. listed pump for pumping petroleum products, o ers
high volume delivery at low air pressures and easy self-priming.
This model is designed specifically for transfer, bulk un-loading
or fueling applications. It includes a pressure relief valve (per U. L.
Speci cation 79) which restricts the  uid outlet pressure to under
50 p.s.i. (3.4 bar). The relief valve must be plumbed to return the
bleed o fuel to the storage container.
Air operated double diaphragm pumps utilize a pressure di eren­tial in the air chambers to alternately create suction and positive
fluid pressure in the fluid chambers, ball checks insure a positive
 ow of  uid.
Pump cycling will begin as air pressure is applied and it will con­tinue to pump and keep up with the demand. It will build and
maintain line pressure and will stop cycling once maximum line
pressure is reached (dispensing device closed) and will resume
pumping as needed.

AIR AND LUBE REQUIREMENTS

WARNING

age, personal injury or property damage. The air supply
must be limited to 50 p.s.i.g. (3.4 bar) maximum inlet air
pressure.

A  lter capable of  ltering out particles larger than 50 microns

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should be used on the air supply. There is no lubrication re­quired other than the “O” ring lubricant which is applied during
assembly or repair.
If lubricated air is present, make sure that it is compatible with

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the “O” rings and seals in the air motor section of the pump.

EXCESSIVE AIR PRESSURE. Can cause pump dam-

INSTALLATION

IMPORTANT

Requirements for the installation are included in the Flam-

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mable and Combustible Liquids Code, NFPA No. 30, Automo­tive and Marine Service Station Code, NFPA No. 30A and the
National Electric Code, ANSI / NFPA No. 70.
A fluid return hose which is compatible with the fluid being

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pumped must be installed to the relief valve on the outlet
manifold to return  uid back to the supply tank or pump inlet.
The pump must be grounded to prevent static discharge.

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Grounding may be accomplished through the legs or to the
ground lug provided on the pump.

OPERATING INSTRUCTIONS

The pump should never be operated at pressures exceeding 50

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p.s.i.g. (345 kPa) inlet air pressure. This pump is equipped with a
pressure relief valve on the material outlet manifold which will
open at 40 +/-4 p.s.i. (2.76 bar) to relieve pressure increases in
the outlet hoses / plumbing caused by thermal expansion or
other external forces.
Always  ush the pump with a solvent compatible with the ma-

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terial being pumped if the material being pumped is subject to
“setting up” when not in use for a period of time.
Disconnect the air supply from the pump if it is to be inactive

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for a few hours.
The outlet material volume is governed not only by the air sup-

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ply, but also by the material supply available at the inlet. The
material supply tubing should not be too small or restrictive.
Be sure not to use hose which might collapse.
When the diaphragm pump is used in a forced-feed ( ooded

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inlet) situation, it is recommended that a “check valve” be in­stalled at the air inlet.
Secure the diaphragm pump legs to a suitable surface to insure

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against damage by vibration.

MAINTENANCE

Certain ARO “Smart Parts” are indicated which should be avail-

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able for fast repair and reduction of down time.
Provide a clean work surface to protect sensitive internal mov-

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ing parts from contamination from dirt and foreign matter dur­ing service disassembly and reassembly.
Keep good records of service activity and include the pump in

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preventive maintenance program.
Service kits are available to service two separate diaphragm

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pump functions: 1. AIR SECTION, 2. FLUID SECTION. The Fluid
Section is divided further to match typical active Material Op­tions.
Before disassembling, empty captured material in the outlet

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manifold by turning the pump upside down to drain material
from the pump.

DIAPHRAGM PUMP SERVICE

GENERAL SERVICE NOTES:

Inspect and replace old parts with new parts as necessary. Look

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for deep scratches on metallic surfaces, and nicks or cuts in “O”
rings.
Tools needed to complete disassembly and repair:

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7/8” socket or wrench, 1/2” socket or wrench, 3/8” socket or

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wrench, 3/8” Allen wrench, 10 mm Allen wrench, T-10 Torx
screwdriver, torque wrench (measuring inch pounds), “O”
ring pick.

FLUID SECTION DISASSEMBLY

Remove (61) top manifold.

1.
Remove (19) “O” rings, (21) seats, (12) washers and (22) balls.

2.
Remove (60) bottom manifold.

3.
Remove (19) “O” rings, (21) seats, (12) washers and (22) balls.

4.
Remove (15)  uid caps.

5.
Remove (14) bolt, (6) diaphragm washer, (7) diaphragms and (5)

6.
washer.
Remove (1) connecting rod from air motor.

7.
Carefully remove remaining (14) bolt, (6) diaphragm washer, (7)

8.
diaphragm and (5) washer from (1) connecting rod. Do not mar
surface of connecting rod.

FLUID SECTION REASSEMBLY

Reassemble in reverse order.

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Lubricate (1) connecting rod with Lubriplate® or equivalent “O”

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ring lubricant.
Connecting rod (1) should be installed using 96571 bullet, in-

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cluded in service kit.
Install (5) washers with i.d. chamfer toward diaphragm.

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Viton® is a registered trademark of the DuPont Company y Loctite® and 242® are registered trademarks of Henkel Loctite Corporation

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Lubriplate® is a registered trademark of Lubriplate Division (Fiske Brothers Re ning Company) y ARO® is a registered trademark of Ingersoll-Rand Company

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670042 (en) Page 3 of 8

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