ARO PD03P-APS-PAA Diaphragm Pump - 3/8" Non-metallic

ARO 3/8'' PD03P-APS-PAA Diaphragm Pumps with Santoprene Diaphragm, Polypropylene Seat and Santoprene Ball.

Description: ARO PD03P-APS-PAA 3/8" Diaphragm Pumps. Max Flow of 10.6 gpm (40.1 lpm), 0.022 gallons (0.083 lit) Max Discharge, 9.25 ft (2.8 m) Max Suction and Max allowable 1/16" (1.6 mm) Solid Size.

Model#: PD03P-APS-PAA | Series#: PD03P-XXS-XXX

Price: $45675 $40786

Availability:11 in stock. Click for Parts Breakdown
$45675 $40786
Ships from US
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The ARO diaphragm pump offers high volume delivery even at low air pressures, easy self priming and the ability to pump various viscosity materials. This ARO 3/8" diaphragm pump feature big performance in a compact package. It features flow rates up to 10.6 gpm (40.1 lpm).

Air operated double diaphragm pumps utilize a pressure differential in the air chambers to alternately create suction and positive fluid pressure in the fluid chambers. Flat checks insure a positive flow of fluid.

Pump cycling will begin as air pressure is applied and it will continue to pump and keep up with the demand. It will build and maintain line pressure and will stop cycling once maximum line pressure is reached (dispensing device closed) and will resume pumping as needed.



  • A favorite of OEM's around the world.
  • Big delivery in a small package.
  • Manufactured for complete corrosion resistance - constructed with polypropylene center body, standard stainless steel fasteners, and your choice of PVDF, Polypropylene, or Groundable Acetal casing materials
  • Efficiency - Simul-Shift™ valve provides ultra-positive, reliable shift signal
  • Reliability - ARO's patented 'Unbalanced' air valve ensures no-stall operation
  • Versatility - Center, End, and Dual Inlet / Outlet manifold configurations for your application needs
  • Environmentally Sound - Bolted construction for leak-free fluid handling
  • Serviceability - Ease of service through modular design
PD03P-APS-PAA Product Specific Data
Center Section MaterialPolypropylene
Connection TypeNPTF
Fluid Cap & Manifold MaterialPolypropylene (Single Port)
Hardware MaterialStainless Steel
Seat MaterialPolypropylene
Ball MaterialSantoprene
Diaphragm MaterialSantoprene
Pump TypeDiaphragm Pump
Max Air Inlet Pressure6.9 bar (100 psi)
Max Material Inlet Pressure6.9 bar (100 psi)
Max Outlet Pressure6.9 bar (100 psi)
Air Consumption @ 40 psig1 cfm/gallon (approx)
Displacement/Cycle @ 100 psig0.022 gallons (0.083 lit)
Max Solid Size1/16" (1.6 mm)
Max Flow Rate10.6 gpm (40.1 lpm)
Max Temperature Limits (F)-400° to 350°
Size0.375" (9.5 mm)
Air Inlet (Female)1/4-18 PTF SAE Short
Air Exhaust (Standard)Internal
Noise Level @ 70 psi, 60 cpm72.7 db(A)
Maximum Dry Suction Lift9.25 ft (2.8 m)
MufflerIntegral, Included
Document Title Download
SpecificationsClick Here to Download
Operator's ManualClick Here to Download
Position Part Number Part Details Required Quantity Visualize Price  
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1699638496384 - ARO "U" Cup Packing (1/8" x 5/8" o.d.), Material Polyurethane by Ingersoll Rand1$17.30
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2009636496364 - ARO Porting Gasket, Material Nitrile by Ingersoll Rand1$1.10
236Y12-4-SY12-4-S - ARO Nut (1/4" - 20) by Ingersoll Rand4$3.80
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637442-5ARO 637442-5$378.00
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