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 2"(50mm) maximum discharge volume of 600L/min
It is a high performance process pump and is popular in many industries for transferring high volume fluids.

It has many features and is available in a large range of materials.


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

General specifications

Maximum capacity 620 liters/min / 163.79 gallons/min
Port size 50 mm / 2 "
Air Supply Pressure 1,4 -7 bar
(0,14 - 0,7 MPa)
Discharge Volume per Cycle Rubber Diaphragm: 4,25 liters
PTFE Diaphragm: 2,61 liters
Maximum Cycles per Minute Rubber Diaphragm: 146
PTFE Diaphragm: 220
Maximum Size Solid 8,0 mm
Maximum Dry Suction Lift Rubber-fitted pump capability: 5,8 m
Air Motor Metal pumps standard with aluminum motor
Plastic pumps standard with PPG motor
Air Motor Option Teflon-coated
Electroless Nickel Plated for Aluminum air motor
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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