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: $52400

Availability:52 in stock. Click for Parts Breakdown
Ships from US
select 2 to 4 items to compare.

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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59655696556 - ARO Diaphragm Washer, Material Glass Filled Nylon by Ingersoll Rand2$4.40
693810-793810-7 - ARO Diaphragm Nut (1/4" - 20) by Ingersoll Rand2$9.60
796533-A96533-A - ARO Diaphragm by Ingersoll Rand2$9.70
1596460-196460-1 - ARO Fluid Cap by Ingersoll Rand2$24.90
199376193761 - ARO "O" Ring (1-1/8" OD) by Ingersoll Rand4$3.60
2196580-196580-1 - ARO Seat Option by Ingersoll Rand4$2.80
2296481-A96481-A - ARO Ball Option by Ingersoll Rand4$3.40
299382893828 - ARO Nut (1/4" - 20), Material Stainless Steel by Ingersoll Rand20$5.20
6096468-196468-1 - ARO Inlet Manifold by Ingersoll Rand1$34.90
6396469-496469-4 - ARO Outlet Manifold by Ingersoll Rand1$30.40
779326493264 - ARO Logo Plate, Material Aluminum by Ingersoll Rand2$6.09
1019646696466 - ARO Center Body, Material Glass Filled Polypropylene by Ingersoll Rand1$40.80
103R9648896488 - ARO Cover (right side), Material Acetal by Ingersoll Rand1$6.00
103L9648996489 - ARO Cover (left side), Material Acetal by Ingersoll Rand1$6.00
1079635396353 - ARO Plug, Small, Material Acetal by Ingersoll Rand1$7.70
1119591995919 - ARO Major Valve Spool, Material Acetal by Ingersoll Rand1$7.70
1219609296092 - ARO Washer, Material Acetal by Ingersoll Rand2$2.50
1239609396093 - ARO Screw (#4 - 20 x 1/2"), Material Stainless Steel by Ingersoll Rand12$2.30
1299654296542 - ARO Muffler Baffle, Material Polypropylene by Ingersoll Rand1$9.50
1309593195931 - ARO Washer (1/4”), Material Carbon Steel by Ingersoll Rand1$2.50
13296214-196214-1 - ARO Air Manifold Gasket by Ingersoll Rand1$6.10
1349648796487 - ARO Flange Bolt (1/4" - 20 x 3"), Material Stainless Steel by Ingersoll Rand4$4.40
1359620496204 - ARO Valve Block, Material Glass filled Polypropylene by Ingersoll Rand1$25.90
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1399638396383 - ARO "U" Cup Packing (1/8" x 1-7/16" o.d.), Material Polyurethane by Ingersoll Rand1$9.20
1419617396173 - ARO Valve Plate, Material Ceramic by Ingersoll Rand1$27.40
144Y187-47Y187-47 - ARO "U" Cup Packing (1/8" x 3/4" o.d.), Material Nitrile by Ingersoll Rand2$3.60
166Y325-24Y325-24 - ARO "O" Ring(1/16" x 1-1/4" o.d.), Material Nitrile by Ingersoll Rand1$4.10
1676738267382 - ARO Pilot Piston (includes 168 and 169), Material Acetal by Ingersoll Rand1$34.80
1689645996459 - ARO "O" Ring (1/16" x 7/16" o.d.), Material Polyurethane by Ingersoll Rand2$2.80
1699638496384 - ARO "U" Cup Packing (1/8" x 5/8" o.d.), Material Polyurethane by Ingersoll Rand1$22.80
1709609096090 - ARO Spool Bushing, Material Acetal by Ingersoll Rand1$4.40
171Y325-17Y325-17 - ARO "O" Ring (1/16" x 13/16" o.d.), Material Nitrile by Ingersoll Rand2$3.35
2009636496364 - ARO Porting Gasket, Material Nitrile by Ingersoll Rand1$1.30
236Y12-4-SY12-4-S - ARO Nut (1/4" - 20) by Ingersoll Rand4$4.90
ID Short Details Price  
637442-1ARO 637442-1$171.00
637442-2ARO 637442-2$487.00
637442-3ARO 637442-3$412.63
637442-4ARO 637442-4$367.00
637442-5ARO 637442-5$485.00
637442-6ARO 637442-6$418.00
66073-1ARO 66073-1$250.00 $242.62
66975ARO 66975$1221.00
67165-1ARO 67165-1$293.00
67165-2ARO 67165-2$293.00
67165-3ARO 67165-3$272.00
67386ARO 67386$191.00
67388ARO 67388$84.60
ID Short Details Price  
637428ARO 637428 Air Section Service Kit$97.60
637429-AAARO 637429-AA$72.70