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OPERAT
OR’S MANUAL
6662XX–X–C
RELEASED:
5–31–88
REVISED: 10–2–96
(REV.I)
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
2”
DIAPHRAGM PUMP
1:1
RA
TIO (METALLIC)
READ THIS MANUAL CAREFULL
Y BEFORE INST
ALLING,
OPERA
TING OR SER
VICING THIS EQUIPMENT
.
It
is the responsibility of the employer to place this information in the hands of the operator
. Keep for future reference.
E1996 D PRINTED IN U.S.A.
&
(419) 636–4242
D
F
AX (419) 633–1674
INGERSOLL–RAND COMPANY
ONE
ARO CENTER
D
BR
Y
AN, OHIO 43506–0151
T
GENERAL
DESCRIPTION
THIS MANUAL COVERS THE FOLLOWING MODELS
MODEL TH'D
CENTER
BODY MAT'L
WETTED SIDE
MATERIAL
MODEL TH'D
CENTER
BODY MAT'L
WETTED SIDE
MATERIAL
666200, 20A, -XXX-C NPT ALUMINUM ALUMINUM 666220, 22A, -XXX-C BSP ALUMINUM ALUMINUM
666201, 20B, -XXX-C NPT ALUMINUM S'STEEL 666221, 22B, -XXX-C BSP ALUMINUM S'STEEL
666202, 20C, -XXX-C NPT ALUMINUM CAST IRON 666222, 22C, -XXX-C BSP ALUMINUM CAST IRON
666210, 21A, -XXX-C NPT CAST IRON ALUMINUM 666230, 23A, -XXX-C BSP CAST IRON ALUMINUM
666211, 21B, -XXX-C NPT CAST IRON S'STEEL 666231, 23B, -XXX-C BSP CAST IRON S'STEEL
666212, 21C, -XXX-C NPT CAST IRON CAST IRON 666232, 23C, -XXX-C BSP CAST IRON CAST IRON
SERVICE KITS
637118-C for Air Section repair. (See page 6.)
637124-XX for Fluid Section repair. (See page 4.)
637155 Abrasion Resistant Conversion Kit is available for use with
heavy and abrasive material applications. (See page 4)
PUMP
DA
TA
Models See Model Description Chart for ``-XXX'' on page 3....
Pump Type Metallic Air Operated Double Diaphragm
Material See Model Description Chart on page 3....
Weight ALUMINUM (CTR-BODY) 46 lbs to 82 lbs....
CAST IRON (CTR-BODY) 89 lbs
Maximum Air Inlet Pressure 120 p.s.i. (8 bar).........
Maximum Outlet Pressure 120 p.s.i. (8 bar)...........
Maximum Flow Rate (Flooded Inlet) 135 g.p.m.....
Maximum Particle Size 1/4" dia..............
Maximum Temp. Limits
Polypropylene 35_Fto150_F (Seats)
PVDF 10_Fto200_F (Seats)
Dimensional Data See page 8..................
Noise Level* 77.7 db(A) @ 70 psi, 60 cycles per minute.
*ThepumpsoundpressurelevelspublishedherehavebeenupdatedtoanEquivalentContinuousSoundLevel(L
Aeq
)tomeettheintentofANSIS1.13-1971,CAGI-PNEUROPS5.1usingfourmicrophonelocations.
The ARO Diaphragm Pump offers high volume delivery even at low air
pressure and a broad range of material compatibility options available.
Refer to the model and option chart on page 3. ARO pumps feature
stall resistant design, modular air motor / fluid sections.
Air operated double diaphragm pumps utilize a pressure differential in
the air chambers to alternately create suction and positive fluid pressure
in the fluid chambers, ball checks insure the positive flow of fluid.
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 presĆ
sure and will stop cycling once maximum line pressure is reached (disĆ
pensing device closed) and will resume pumping as needed.
6662XX-XXX-C
2'' DIAPHRAGM PUMP