Ingersoll-Rand 6661HX-XXX-C User Manual

OPERATOR’S MANUAL 6661HX-XXX-C

INCLUDING: OPERATION, INSTALLATION & MAINTENANCE

1" DIAPHRAGM PUMP

CSA CERTIFIED, 1:1 RATIO, METALLIC

INTENDED FOR USE WITH SWEET NATURAL GAS

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

Refer to Model Description Chart to match the pump mate-

rial options.
637118-C for gas section repair (see page 6).
637119-C9-C for  uid section repair (see page 4).

PUMP DATA

Models . . . . . . . . . . . . . see Model Description Chart for “-XXX”

Pump Type . . . . . . . . . Gas Operated Double Diaphragm

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

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 lbs (8.62 kgs)

Maximum Gas Inlet Pressure . . . . . . . 120 p.s.i.g. (8.3 bar)

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

Maximum Outlet Pressure . . . . . . . . . . 120 p.s.i.g. (8.3 bar)

Maximum Flow Rate

( ooded inlet)

Displacement / Cycle @ 100 p.s.i.g. . 0.156 gal. (0.59 lit.)

Maximum Particle Size . . . . . . . . . . . . . 1/8” dia. (3.2 mm)

Maximum Temperature Limits . . . 32° to 125° F (0° to 52° C)

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

Noise Level @ 70 p.s.i., 60 c.p.m. . . . . . . 64.5 db(A)

. . . 35 g.p.m. (133 l.p.m.)

MODEL DESCRIPTION CHART

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RELEASED: 12-18-06
REVISED: 5-20-10
(REV. 04)

Figure 1

6661 H 0 - 1 C 9 - C

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.

) to meet the intent of ANSI

Aeq

Center Section Material, Fluid Connection

H - Aluminum, 1 - 11-1/2 N.P.T.F. - 1

Fluid Cap / Manifold Material, Hardware

0 - Aluminum, Carbon Steel

Seat Material

1 - Aluminum

Ball Material

C - Hytrel®

Diaphragm Material

9 - Hytrel

Fluid Section Service Kit Selection

EXAMPLE: Model #6661H0-1C9-C
Fluid Section Service Kit # 637119-C9-C

6661H0 - 1 X X - C
637119 - X X - C

Ball Diaphragm

INGERSOLL RAND COMPANY LTD

209 NORTH MAIN STREET – BRYAN, OHIO 43506

[phone] y FAX [phone]



www.ingersollrandproducts.com

© 2010 CCN 15276603

OPERATING AND SAFETY PRECAUTIONS

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

EXCESSIVE GAS PRESSURE
STATIC SPARK

WARNING

EXCESSIVE GAS PRESSURE. Can cause per­sonal injury, pump damage or property damage.
Do not exceed the maximum inlet gas pressure as

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

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to 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

STATIC SPARK. Can cause explosion result­ing in severe injury or death. Ground pump and
pumping system.
Use the pump ground lug provided. Connect to a 12

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ga. (minimum) wire (kit is included) to a good earth
ground source.
Sparks can ignite  ammable material and vapors.

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The pump must be electrically grounded using the

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grounding conductor provided. Improper grounding
can cause improper and dangerous operation.
Secure pump, connections and all contact points to

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

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speci c grounding requirements.
After grounding, periodically verify continuity of

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electrical 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

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device 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 in ammables away from heat, open  ames and

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sparks.
Keep containers closed when not in use.

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WARNING

Pump exhaust may contain contaminants.
Can cause severe injury. Pipe exhaust away from work
area and personnel.
The gas outlet of the pump must be vented to a safe lo-

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cation in accordance with local codes or, in the absence
of local codes, an industry or nationally recognized
code having jurisdiction over the speci c installation.
Use a grounded 3/8” minimum i.d. hose between the

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pump and the mu er.

WARNING

HAZARDOUS PRESSURE. Can result in seri­ous injury or property damage. Do not service or
clean pump, hoses or dispensing valve while the sys­tem is pressurized.
Disconnect gas supply line and relieve pressure from

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

WARNING

HAZARDOUS MATERIALS. Can cause serious
injury 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

HAZARDOUS MATERIALS
HAZARDOUS PRESSURE

requirements.
Obtain Material Safety Data Sheets on all materials

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from the supplier for proper handling instructions.

WARNING

EXPLOSION HAZARD. Models containing alu­minum wetted 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,  uid caps, manifolds and

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

CAUTION

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

CAUTION

Maximum temperatures are based on
mechanical 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

Be certain all operators of this equipment
have been trained for safe working practices, under­stand it’s limitations, and wear safety goggles / equip­ment when required.

CAUTION

Do not use the pump for the structural sup­port of the piping system. Be certain the system com­ponents are properly supported to prevent stress on
the pump parts.
Suction and discharge connections should be flex-

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

CAUTION

Prevent unnecessary damage to the pump.
Do not allow pump to operate when out of material
for long periods of time.
Disconnect gas line from pump when system sits idle

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for long periods of time.

CAUTION

Use only genuine ARO® replacement parts
to assure compatible pressure rating and longest ser­vice life.

NOTICE

Install the pump in the vertical position.
The pump may not prime properly if the balls do not
check by gravity upon start-up.

NOTICE

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

NOTICE

Replacement warning labels are available
upon request: “Static Spark” pn \ 93616-1, Diaphragm
Rupture” pn \ 93122.

WARNING

= 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 6661HX-XXX-C (en)

GENERAL DESCRIPTION

The ARO natural gas powered diaphragm pump o ers high
volume delivery even at low gas pressure. Natural gas pow­ered diaphragm pumps move fluids such as crude oil, salt
water, drilling mud, lubrication oils, glycol, caustic liquids and
acids. ARO pumps feature stall resistant design, modular gas
motor /  uid sections.
Gas operated double diaphragm pumps utilize a pressure
differential in the gas chambers to alternately create suc­tion and a positive  uid pressure in the  uid chambers, ball
checks insure a positive  ow of  uid.
Pump cycling will begin as gas 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.

GAS AND LUBE REQUIREMENTS

WARNING

damage, personal injury or property damage.

A filter capable of filtering out particles larger than 50

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

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ible with the “O” rings and seals in the gas motor section
of the pump.

EXCESSIVE GAS PRESSURE. Can cause pump

OPERATING INSTRUCTIONS

Always flush the pump with a solvent compatible with

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

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inactive for a few hours.
The outlet material volume is governed not only by the

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gas supply, 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

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

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insure against damage by vibration.

MAINTENANCE

Certain ARO “Smart Parts” are indicated which should be

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

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

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pump in preventive maintenance program.
Service kits are available to service two separate dia-

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

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

FLUID SECTION DISASSEMBLY

Remove top manifold(s).

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

2.
Remove (15)  uid caps.

3.
Remove (14) screws, (6) washers, (7) diaphragms and (5)

4.
washers.
Remove (3) “O” rings. NOTE: Do not scratch or mar the

5.
surface of (1) diaphragm rod.

FLUID SECTION REASSEMBLY

Reassemble in reverse order.

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Clean and inspect all parts. Replace worn or damaged

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parts with new parts as required.
Lubricate (1) diaphragm rod and (2) “O” ring with Key-

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Lube grease.
Use ARO pn 98930-T bullet (installation tool) to aid in in-

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stallation of (2) “O” ring on (1) diaphragm rod.
Be certain (7) diaphragms align properly with (15) fluid

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caps before making  nal torque adjustments on bolt and
nuts to avoid twisting the diaphragm.
Re-check torque settings after pump has been re-started

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and run a while.

Loctite® is a registered trademark of Henkel Loctite Corporation y 271™, 262™, 572™ and 577™ are trademarks of Henkel Loctite Corporation

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Hytrel® and Viton® are registered trademarks of the DuPont Company y ARO® is a registered trademark of Ingersoll-Rand Company

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6661HX-XXX-C (en) Page 3 of 8

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