Collection: Diaphragm Pumps
Air-operated double-diaphragm (AODD) pumps for transferring chemicals, solvents, slurries, adhesives, and abrasive or shear-sensitive fluids — no electricity at the pump, self-priming, run-dry safe, and deadhead-able. We list models from multiple manufacturers by exact part number, each with its real wetted-material build (diaphragm, balls, seats, fluid caps), so you can match the pump to your fluid instead of guessing from a series sheet. Every page shows the spec table, the manufacturer datasheet, and a clear price. Based in Texas with US support and short lead times — find your model number, confirm the build, and order online.
Keeping a pump running? Browse pulsation dampeners and pump accessories to smooth flow and protect your system.
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ARO 666100-344-C — 1" Aluminum Diaphragm Pump, PTFE Diaphragm
Regular price $1,965.55 USDRegular price$2,069.00 USDSale price $1,965.55 USDSale -
ARO 666100-244-C — 1" Aluminum Diaphragm Pump, PTFE Diaphragm
Regular price $2,203.05 USDRegular price$2,319.00 USDSale price $2,203.05 USDSale -
ARO 666100-122-C — 1" Aluminum Diaphragm Pump, Nitrile Diaphragm
Regular price $1,725.20 USDRegular price$1,816.00 USDSale price $1,725.20 USDSale -
ARO 66605K-444 — 1/2" Kynar PVDF Diaphragm Pump, PTFE Diaphragm
Regular price $2,473.80 USDRegular price$2,604.00 USDSale price $2,473.80 USDSale -
ARO 66605J-3EB — 1/2" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $892.06 USDRegular price$1,063.00 USDSale price $892.06 USDSale -
ARO 66605J-388 — 1/2" Polypropylene Diaphragm Pump, Polyurethane Diaphragm
Regular price $925.27 USDRegular price$1,102.00 USDSale price $925.27 USDSale -
ARO 66605J-344 — 1/2" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $1,152.36 USDRegular price$1,331.00 USDSale price $1,152.36 USDSale -
ARO 666057-444 — 1/2" Kynar PVDF Diaphragm Pump, PTFE Diaphragm
Regular price $2,453.85 USDRegular price$2,583.00 USDSale price $2,453.85 USDSale -
ARO 666056-644 — 1/2" Groundable Acetal Diaphragm Pump, PTFE Diaphragm
Regular price $1,503.85 USDRegular price$1,583.00 USDSale price $1,503.85 USDSale -
ARO 666056-2A4 — 1/2" Groundable Acetal Diaphragm Pump, PTFE Diaphragm
Regular price $1,588.40 USDRegular price$1,672.00 USDSale price $1,588.40 USDSale -
ARO 666053-3EB — 1/2" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $878.22 USDRegular price$1,046.00 USDSale price $878.22 USDSale -
ARO 666053-388 — 1/2" Polypropylene Diaphragm Pump, Polyurethane Diaphragm
Regular price $939.51 USDRegular price$1,084.00 USDSale price $939.51 USDSale -
ARO 666053-344 — 1/2" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $1,101.47 USDRegular price$1,312.00 USDSale price $1,101.47 USDSale -
ARO 666053-333 — 1/2" Polypropylene Diaphragm Pump, Viton Diaphragm
Regular price $1,144.75 USDRegular price$1,205.00 USDSale price $1,144.75 USDSale -
ARO 666053-322 — 1/2" Polypropylene Diaphragm Pump, Nitrile Diaphragm
Regular price $993.70 USDRegular price$1,046.00 USDSale price $993.70 USDSale -
ARO 666053-311 — 1/2" Polypropylene Diaphragm Pump, Neoprene Diaphragm
Regular price $993.70 USDRegular price$1,046.00 USDSale price $993.70 USDSale