666250-144-C ARO 2" Aluminum Metallic Pro Series Air Operated Double Diaphragm Pump
ARO
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ARO
666250-144-C ARO 2" Aluminum Metallic Pro Series Air Operated Double Diaphragm Pump
P/N 666250-144-C ARO 2" Aluminum Metallic Pro Series Air Operated Double Diaphragm Pump
The ARO 666250-144-C is a metallic Pro Series 2-inch air-operated double-diaphragm pump designed for dependable fluid transfer in industrial and process applications. Its aluminum construction, combined with PTFE diaphragms with Santoprene® backup, PTFE check balls, and aluminum seats, provides a durable fluid-handling configuration for a variety of applications.
The bolted, seal-less construction and ball-check design support dependable operation and convenient serviceability. Its 2-inch design supports common transfer, filling, recirculation, and batching duties across ceramic, paint, oil and gas, mining, construction, chemical, petrochemical, and other process environments.
Application suitability should be confirmed based on the specific fluid, concentration, temperature, chemical compatibility, solids content, and operating conditions.
Operator's Manual - CCN 15242647
ARO Compact and Pro Series Diaphragm Pumps
| Air Exhaust | 1-1/4 - 11-1/2 NPTF - 2 |
| Air Inlet (Female) | 3/4 - 14 NPTF - 2 |
| Air Supply Filtration Requirement | 50 microns max |
| Ball Material | PTFE |
| Center Body Material | Aluminum, NPTF |
| Diaphragm Material | PTFE / Santoprene® |
| Displacement / Cycle @ 100 psig | 1.35 gal (5.12 L) |
| Fluid Cap / Manifold Material | Aluminum / Carbon Steel Hardware |
| Material Inlet / Outlet (Female) | 2 - 11-1/2 NPTF - 2 |
| Maximum Air Inlet Pressure | 120 psig (8.3 bar) |
| Maximum Dry Suction Lift | 27.2 ft (8.3 m) |
| Maximum Flow Rate (Flooded Inlet) | 172 gpm (651 lpm) |
| Maximum Material Inlet Pressure | 10 psig (0.69 bar) |
| Maximum Outlet Pressure | 120 psig (8.3 bar) |
| Maximum Temperature Limits | 40°–225°F (4°–107°C) (limited by PTFE) |
| Maximum Particle Size / Max Solids | 1/4" dia. (6.4 mm) |
| Noise Level @ 70 psig, 60 cpm | 85.3 dB(A) |
| Product Series | Pro Series / Metallic |
| Ratio | 1:1 |
| Seat Material | Aluminum |
| Weight | 65.15 lb (29.55 kg) |
| Muffler Kit | 67389 |
| ACCESSORIES / SERVICE: | |
| Air Line Connection Kit | 66312 |
| Air Section Service Kit | 637434 |
| Filter / Regulator - 3/4" NPT | P39354-600 |
| Fluid Section Service Kit (Without Seats) | 637432-44 |
| Valve Seat - Aluminum | 95673 |
