AODD Diaphragm Pumps


Manufacturers air-operated double diaphragm pumps


(N)DP Series pumps are the backbone of the industrial line. A unique, patented air-valve design ensures stall-free operation throughout product life. Bolted construction and common component replaceable parts maximize uptime and increase profitability.

View the different types

Select one of the standard configurations, to see more detailed information.

Housing / Membrane


Port size 1-1/2"(40mm) Maximum fluid discharge of 400L/min
This medium sized pump is ideal for heavier applications and has very competitive performance and many other features.


Max. fluid temperature 120 ℃ / 248 F
Valve type Ball

General specifications

Maximum capacity 405 liters/min / 106.99 gallons/min
Port size 40 mm / 1-1/2 "
Air Supply Pressure 1,4 - 7 Bar
(0,14 -0,7MPa)
Discharge Volume per Cycle Rubber diaphragm: 2,74 liters
PTFE diaphragm: 1,40 liters
Maximum Cycles per Minute Rubber diaphragm: 148
PTFE diaphragm: 270
Maximum Size Solid 7,0 mm (9/32")
Maximum Dry Suction Lift Rubber-fitted pump capability: 5,5 meter
Air Motor Standard: Aluminum
Air Motor Option Teflon-coated or Electroless Nickel Plated
Notes All Polypropylene, Aluminum, Cast Iron and SS Hytrel fitted pumps
incl. Buna-N wetted o-rings
Santoprene fitted pumps incl. EPDM wetted o-rings
Kynar(PVDF) pumps fitted with Santoprene
incl. Santoprene check balls & PTFE o-rings
Notes Hytrel or Teflon incl. Teflon check balls & o-rings

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