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 PD05A-AAS-FTT-B — 1/2" Aluminum Diaphragm Pump, PTFE Diaphragm
Regular price $1,605.50 USDRegular price$1,690.00 USDSale price $1,605.50 USDSale -
ARO PD05A-AAS-FCC-B — 1/2" Aluminum Diaphragm Pump, Hytrel Diaphragm
Regular price $1,353.75 USDRegular price$1,425.00 USDSale price $1,353.75 USDSale -
ARO PD03P-ARS-PTT — 3/8" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $717.75 USDRegular price$828.00 USDSale price $717.75 USDSale -
ARO PD03P-ARS-PAA — 3/8" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $597.55 USDRegular price$629.00 USDSale price $597.55 USDSale -
ARO PD03P-APS-PTT — 3/8" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $758.10 USDRegular price$798.00 USDSale price $758.10 USDSale -
ARO PD03P-APS-PAA — 3/8" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $569.05 USDRegular price$599.00 USDSale price $569.05 USDSale -
ARO PD03P-AKS-KTT — 3/8" Kynar PVDF Diaphragm Pump, PTFE Diaphragm
Regular price $1,209.35 USDRegular price$1,273.00 USDSale price $1,209.35 USDSale -
ARO PD03P-ADS-DTT — 3/8" Acetal Diaphragm Pump, PTFE Diaphragm
Regular price $943.35 USDRegular price$993.00 USDSale price $943.35 USDSale -
ARO PD01P-HPS-PTT-A — 1/4" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $622.87 USDRegular price$679.00 USDSale price $622.87 USDSale -
ARO PD01P-HPS-PAA-A — 1/4" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $455.73 USDRegular price$499.00 USDSale price $455.73 USDSale -
ARO PD01P-HKS-KTT-A — 1/4" Kynar PVDF Diaphragm Pump, PTFE Diaphragm
Regular price $869.25 USDRegular price$915.00 USDSale price $869.25 USDSale -
ARO 6661U3-344-C — 1-1/2" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $4,355.75 USDRegular price$4,585.00 USDSale price $4,355.75 USDSale -
ARO 6661T3-3EB-C — 1-1/2" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $3,304.10 USDRegular price$3,478.00 USDSale price $3,304.10 USDSale -
ARO 6661T3-344-C — 1-1/2" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $4,119.20 USDRegular price$4,336.00 USDSale price $4,119.20 USDSale -
ARO 6661B3-344-C — 1" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $2,164.10 USDRegular price$2,278.00 USDSale price $2,164.10 USDSale -
ARO 6661AJ-3EB-C — 1" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $1,401.96 USDRegular price$1,576.00 USDSale price $1,401.96 USDSale