Diaphragm Pumps

Diaphragm pumps or Membrane pumps, are positive displacement pumps that use a diaphragm and valve to pump fluids. Diaphragm pumps are available in metallic (aluminum, stainless steel) and non-metallic (Polypropelene, acetal) material.

25 Products

ARO EXP 1/4'' Diaphragm Pumps

Part of ARO's Compact Series of pumps, ARO's 1/4” pumps feature big performance in a compact package. They feature flow rates up to 5.3 GPM (20 LPM)

Features & Benefits
  • Compact Design
  • 360º Mounting Versatility when using optional flex checks
  • Creates a 31-feet of suction lift
  • Ideal for OEM Applications

ARO EXP 3/8'' Diaphragm Pumps

Part of ARO's Compact Series of pumps, ARO's 3/8” pumps feature big performance in a small package. They feature flow rates up to 10.6 GPM (40.1 LPM)

Features & Benefits
  • A favorite of OEM's around the world.
  • 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
  • Simul-Shift valve provides ultra-positive, reliable shift signal
  • Bolted construction for leak-free fluid handling

ARO EXP 1/2'' Diaphragm Pumps

Part of ARO's Compact Series of pumps, ARO's 1/2” metallic pumps feature big performance in a small package. They achieve flow rates up to 14.4 GPM (54.5 LPM)

Features & Benefits
  • Designed to meet your OEM application needs
  • Manufactured for complete corrosion resistance - constructed with polypropylene center body, standard stainless steel fasteners
  • No-stall operation
  • Bolted construction for leak-free fluid handling

ARO EXP 3/4'' Diaphragm Pumps

Part of ARO's Compact Series of pumps, ARO's 3/4” pumps feature big performance in a small package. They offer flow rates up to 14.8 GPM (56 LPM)

Features & Benefits
  • Designed to meet your OEM application needs
  • Manufactured for complete corrosion resistance - constructed with polypropylene center body, standard stainless steel fasteners
  • No-stall operation
  • Bolted construction for leak-free fluid handling

ARO EXP 1'' Diaphragm Pumps

ARO EXP 1'' metallic diaphragm pumps achieve flow rates of up to 52.2 GPM (197.6 LPM) and offer a wide array of material and porting configurations. These pumps are often used for transfer, filling, recirculation and batching in ceramic, industrial, chemical and petrochemical markets.

Features & Benefits
  • Designed to meet your OEM application needs
  • Manufactured for complete corrosion resistance - constructed with polypropylene center body, standard stainless steel fasteners
  • No-stall operation
  • Bolted construction for leak-free fluid handling

ARO EXP 1-1/2'' Diaphragm Pumps

ARO 1-1/2'' metallic diaphragm pumps achieve flow rates of up to 123.1 GPM (465.9 LPM) and offer a wide array of material and porting configurations. These pumps are often used for transfer, filling, recirculation and batching in paint, oil and gas, chemical and petrochemical markets.

Features & Benefits
  • Designed to meet your OEM application needs
  • Manufactured for complete corrosion resistance - constructed with polypropylene center body, standard stainless steel fasteners
  • No-stall operation
  • Bolted construction for leak-free fluid handling

ARO EXP 2'' Diaphragm Pumps

ARO EXP 2'' non-metallic pumps achieve flow rates of up to 184 GPM (696.4 LPM)

Features & Benefits
  • Designed to meet your OEM application needs
  • Manufactured for complete corrosion resistance - constructed with polypropylene center body, standard stainless steel fasteners
  • No-stall operation
  • Bolted construction for leak-free fluid handling

ARO EXP Series 3 in Pumps

Features & Benefits
  • The best "Total Cost of Ownership" of any diaphragm pump on the market today!!
  • The Ultimate in heavy duty pump design!!

ARO 1/2 in Classic Diaphragm Pumps

Features & Benefits
  • Motor design delivers optimum air efficiency
  • Bolted construction for leak-free fluid handling

ARO Drum Pump Packages

Drum Pump Packages contain pre-specified, matching materials of construction for complete fluid compatibility

Features & Benefits
  • Stall-free operation
  • Bolted construction
  • 5-year warranty

ARO Flap Valve Diaphragm Pumps

Features & Benefits
  • Able to handle 2'' semi-solids and 3/4'' solid materials.
  • Simul-Shift™ valve provides ultra-positive, reliable shift signal
  • ARO's patented 'Unbalanced' air valve ensures no-stall operation

ARO Fuel Transfer Diaphragm Pumps

Designed specifically for high-volume transfer, bulk-unloading, or fueling applications. These pumps meet UL 79 specification code and are compatible with gasoline, aviation fuel, diesel fuel, fuel oil and kerosene.

Features & Benefits
  • Designed specifically for dispensing petroleum-based fuel
  • Meet UL-79 specification code
  • Compatible with gasoline, diesel fuel, kerosene, aviation fuel, fuel oil and unleaded fuel
  • Used for high-volume transfer, bulk-unloading or refueling applications
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