6661B3-3EB-C ARO 1" Polypropylene Non-Metallic Pro Series Air Operated Double Diaphragm Pump
ARO
$1,569.94
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ARO
6661B3-3EB-C ARO 1" Polypropylene Non-Metallic Pro Series Air Operated Double Diaphragm Pump
P/N 6661B3-3EB-C ARO 1" Polypropylene Non-Metallic Pro Series Air Operated Double Diaphragm Pump
The ARO 6661B3-3EB-C is a non-metallic Pro Series 1-inch air-operated double-diaphragm pump designed for dependable fluid transfer in industrial and process applications. Its cast iron center body and colorless polypropylene fluid section, combined with Santoprene® diaphragms, Santoprene® check balls, and polypropylene seats, provide a durable fluid-handling configuration for a variety of applications.
The three-piece manifold design provides a flanged connection configuration, while the bolted construction and ball-check design support dependable operation and convenient serviceability. This pump is suited to common transfer, recirculation, filling, and supply duties across chemical, industrial, water/wastewater treatment, and other process environments.
Application suitability should be confirmed based on the specific fluid, temperature, viscosity, chemical compatibility, solids content, and operating conditions.
Note - Correction to Operator's Manual revised 7-26-24: Model description chart should indicate Center Body Material code "B" for Cast Iron and is incorrectly printed as "A"
Operator's Manual - CCN 81660326
Sales and Engineering Data - 15260946
ARO Compact and Pro Series Diaphragm Pumps
| Air Exhaust (Female) | 3/8 - 18 NPTF - 1 |
| Air Inlet (Female) | 1/4 - 18 NPT |
| Air Supply Filtration Requirement | 50 microns max |
| Ball Material | Santoprene® |
| Center Body Material | Cast Iron |
| Diaphragm Material | Santoprene® |
| Displacement / Cycle @ 100 psig | 0.17 gal (0.64 L) |
| Fluid Cap / Manifold Material | Colorless Polypropylene, Flange (3-piece manifold) |
| Material Inlet / Outlet | 1" Flange, ANSI Class 150 / DIN |
| Maximum Air Inlet Pressure | 120 psig (8.3 bar) |
| Maximum Dry Suction Lift | 15 ft (4.6 m) |
| Maximum Flow Rate (Flooded Inlet) | 47 gpm (177.9 lpm) |
| Maximum Material Inlet Pressure | 10 psig (0.69 bar) |
| Maximum Outlet Pressure | 120 psig (8.3 bar) |
| Maximum Temperature Limits | 32°–175°F (0°–79°C) (limited by Polypropylene) |
| Maximum Particle Size / Max Solids | 1/8" dia. (3.2 mm) |
| Muffler | Integral |
| Noise Level @ 70 psig, 60 cpm | 64.5 dB(A) |
| Product Series | Pro Series / Non-Metallic |
| Ratio | 1:1 |
| Seat Material | Polypropylene |
| Weight | 28.8 lb (13.06 kg) |
| ACCESSORIES / SERVICE: | |
| Air Line Connection Kit | 66073-2 |
| Air Section Service Kit | 637118-C |
| Filter / Regulator - 1/4" NPT | P39224-600 |
| Flange Connection Kit | 67078 |
| Fluid Section Service Kit (Without Seats) | 637161-EB-C |
| Valve Seat - Polypropylene | 94707-1 |
