ARO 666057-444 Compact Series Diaphragm Pump
Compact Series AODD pump using PTFE balls on PVDF seats and PTFE/Santoprene diaphragms, up to 13 gpm
Compact Series air-operated diaphragm pump fitted with PTFE check balls, PVDF seats and PTFE/Santoprene diaphragms, rated to 13 gpm at 100 psi air.
The ARO 666057-444 is an air-operated double diaphragm pump in the Compact Series, part of the 66605X-XXX model family. Its check valve uses PTFE balls on PVDF seats, and the diaphragms combine a PTFE overlay with a Santoprene backer. The 444 suffix is the material code for this build, so match it exactly when ordering a replacement.
The pump produces up to 13 gpm (49.2 lpm) on 100 psi (6.9 bar) of air and allows solids up to 3/32 in to pass. Rated noise is 71.1 dB(A).
Key Specifications
- Max flow: 13 gpm (49.2 lpm)
- Max air inlet pressure: 100 psi (6.9 bar)
- Max fluid pressure: 100 psi (6.9 bar)
- Diaphragm: PTFE/Santoprene
- Balls: PTFE; seats: PVDF
- Solids handling: 3/32 in
Typical Applications
- Low-flow transfer of solvents or chemicals suited to PTFE and PVDF
- Drum emptying and small batch filling
- Clean fluids with only fine particles
- Quieter indoor work cells, given the 71.1 dB(A) rating
The 66605X-XXX Chemical Resistance Guide and Technical Data sheet cover fluid compatibility and full dimensions.
Service Parts for This Pump
When ordering a fluid-section part, quote the full 666057-444 number so the material code carries over. Air-section and valve parts from the parts list include:
- ARO 637141 air section service kit
- ARO 93090 polypropylene valve block
- ARO 93088 pilot rod
- ARO 93107 Syn-seal gasket
- ARO 93092 exhaust cover
- ARO 93110 muffler
There are 54 parts listed for this model in all, including O-rings, bolts, a snap ring and a spacer. Installation and repair steps are covered in the 66605X-XXX Operators Manual and General Information Manual.
| Brand | ARO |
|---|---|
| Product Type | Pump |
| Product Series | Compact Series |
| Material - Diaphragm | PTFE/Santoprene |
| Application | Marine Pump/Equipment |
| Solids Handling | 3/32 in |
| Material - Balls | Teflon/PTFE |
| Material - Seats | PVDF |
| Max Air Inlet Pressure | 100 psi (6.9 bar) |
| Max Flow | 13 gpm (49.2 lpm) |
| Max Fluid Pressure | 100 psi (6.9 bar) |
| Max Temperature | 350°F (176.7°C) |
| Noise Level | 71.1 dB(A) |
| Displacement | Positive Displacement |
ARO 93075 O-Ring, Cream is an ARO part or accessory, identified by SKU 93075. This component is intended for compatible ARO fluid-handling equipment.
Confirm the SKU, materials, connection details, and model compatibility against your operating requirements before placing an order.
