3'' EXP Metallic Air Operated Diaphragm Pump

ARO 3'' EXP Metallic Air Operated Diaphragm Pump

Metallic diaphragm pumps made by ARO EXP 3" are capable of up to 275 GPM (1040.9 LPM) flow rates and come in a variety of material and porting combinations. These pumps are frequently used in the ceramic, paint, oil & gas, chemical, and petrochemical industries for transfer, filling, recirculation, and batching.

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The pinnacle of industrial pump design.

Due to the unique convoluted diaphragm design of the EXP, it can last up to 4 times longer than conventional diaphragm pumps.

Efficiency: Simul-ShiftTM valve delivers an incredibly positive, dependable shift signal.
Reliability: The 'Unbalanced' air valve, developed by ARO, provides no-stall operation.
Versatility: Wide variety of construction materials for maximum fluid compatibility
Environmentally friendly: Bolted construction for fluid management without leaks
Serviceability: Simpler maintenance due to modular architecture

Model Series: PX30A-XXX-XXX-CXXX, PX30S-XXX-XXX-CXXX
Pump Type. . . . . . Metallic, Air Operated,
Double Diaphragm
Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:1
Material Inlet / Outlet (female)
PX30X-AXX-XXX-CXXX. . . . . . . . . . . . 3 - 8 NPTF - 1
PX30X-BXX-XXX-CXXX. . . . . . . . . . . . Rp 3 (3 - 11 BSP parallel)
PX30X-DXX-XXX-CXXX. . . . . . . . . . . . 3” ANSI Flange (4 Holes)
PX30X-FXX-XXX-CXXX. . . . . . . . . . . . 3” DIN Flange (8 Holes)
Air Inlet (female). . . . . . . . . . . . . . . . . . . . 3/4 - 14 NPTF - 1
Air Exhaust (female). . . . . . . . . . . . . . . . . 1-1/2 - 11-1/2 NPT
Weight . PX30A-XAX-XXX-CXXX. . . . . . 129.5 lbs (58.8 kgs)
PX30A-XCX-XXX-CXXX. . . . . . . 221.1 lbs (100.3 kgs)
PX30A-AHX-XXX-CXXX, BHX. 249.8 lbs (113.3 kgs)
PX30A-ASX-XXX-CXXX, BSX. . 228.8 lbs (103.8 kgs)
PX30A-FHX-XXX-CXXX, DHX. . 269.6 lbs (122.3 kgs)
PX30A-FSX-XXX-CXXX, DSX. . 245.6 lbs (111.4 kgs)
[add 40.0 lbs (18.2 kgs) for Stainless steel air motor section]
Air Section Service Kit. . . . . . . . . . . . . . 637421
Fluid Section Service Kit (without Seats)....... 637303-XX
Fluid Section Service Kit (with Seats).............. 637303-XXX

Air Inlet Pressure Range. . . . . . . . . . . . 20 - 120 psig (1.4 - 8.3 bar)
Maximum Material Inlet Pressure. . . 10 psig (0.69 bar)
Fluid Outlet Pressure Range. . . . . . . . 20 - 120 psig (1.4 - 8.3 bar)
Maximum Flow Rate . . . . . . . . . . . . . . . . 237 gpm (897 lpm)
flooded inlet. . . . . . . . . . . . . . . . . . . . . . . 275 gpm (1,041 lpm)
Maximum Particle Size. . . . . . . . . . . . . 3/8” dia. (9.5 mm)
Maximum Temperature Limits (diaphragm / ball / seat material)
E.P.R./EPDM. . . . . . . . . . . . . . . . . -60° to 280° F (-51° to 138° C)
Hytrel®. . . . . . . . . . . . . . . . . . . . . . -20° to 180° F (-29° to 82° C)
Nitrile. . . . . . . . . . . . . . . . . . . . . . . 10° to 180° F (-12 to 82° C)
PVDF (Kynar®).. . . . . . . . . . . . . . . 10° to 200° F (-12° to 93° C)
Santoprene®. . . . . . . . . . . . . . . . -40° to 225° F (-40° to 107° C)
PTFE. . . . . . . . . . . . . . . . . . . . . . . . 40° to 225° F (4° to 107° C)
Viton®. . . . . . . . . . . . . . . . . . . . . . . -40° to 350° F (-40° to 177° C)
Displacement / Cycle @ 100 psig . . . 2.8 gal. (10.6 lit.)
Noise Level @ 70 psig - 50 cpm . . . 83.0 dB(A)

	A	D	J	L	N	G
PX30X-XAX-XXX-CXXX	23-5/8” (600.1 mm)	2-3/8” (60.3 mm)	11” (279.4 mm)	15-1/2” (393.7 mm)	2-3/4” (69.9 mm)	32” (812.8 mm)
PX30X-XCX-XXX-CXXX	23-5/8” (600.1 mm)	2-7/16” (61.9 mm)	11-11/16” (296.9 mm)	15-1/2” (393.7 mm)	2-3/4” (69.9 mm)	32” (812.8 mm)
PX30X-XHX-XXX-CXXX	23-1/8” (587.4 mm)	2-3/4” (69.9 mm)	11-11/16” (296.9 mm)	16” (406.4 mm)	2-3/4” (69.9 mm)	32” (812.8 mm)
PX30X-XSX-XXX-CXXX	23-1/8” (587.4 mm)	2-3/4” (69.9 mm)	11-11/16” (296.9 mm)	16” (406.4 mm)	2-3/4” (69.9 mm)	32” (812.8 mm)
PX30X-DXX-XXX-CXXX	23-1/8” (587.4 mm)	2-3/4” (69.9 mm)	11-11/16” (296.9 mm)	16” (406.4 mm)	3-3/4” (95.25 mm)	33-15/16”(862.0mm)
PX30X-FXX-XXX-CXXX	23-1/8” (587.4 mm)	2-3/4” (69.9 mm)	11-11/16” (296.9 mm)	16” (406.4 mm)	3-3/4” (95.25 mm)	33-15/16”(862.0mm)

66109 Air Line Connection Kit: contains Piggyback Filter / Regulator, pipe nipple & 5’ section of hose
67237 Diaphragm Failure Detection Kit
67350-1 Cycle Counter Kit
67263 Continuous-Duty Muffler
67174-30 Screen Inlet Adapter Kit
637369 Air Section Service Kit for PX30R
637421 Air Section Service Kit for PX30A and PX30S
637303-XX Fluid Section Service Kit