Liquid Handling Pumps from Mile-X Equipment, Inc.

ARO 666053-388 1/2" Diaphragm Pump -- ARO666053388

ARO 666053-388 1/2" Diaphragm Pump -- ARO666053388 -- View Larger Image
ARO 666053-388 1/2" Diaphragm Pump -- ARO666053388-Image

Body materials (wetted): Polypropylene

Diaphragm / ball material: Polyurethane

Air inlet NPT (F) in (mm): 1/4" (6.3)

Fluid inlet / outlet material in (mm): 1/2" (12.7)

Max flow gpm l/m: 13 (49.2)

Compatible fluids: Windshield fluid, motor/gear oil, transmission fluid, antifreeze

Why Ingersoll Rand / ARO?

Our diaphragm pumps are ideal for pumping oil or other light fluids such as antifreeze, water, windshield fluid, fuel (See UL 79 Approved Units), solvents, transmission fluid, and waste oil. Fluid ports for Ingersoll Rand /ARO diaphragm pumps range in size from 3/8” to 2” (9.5 to 51 mm) to meet the requirements of any application.

  • Safety — Bolted fasteners prevent fluid leaks harmful to workers and the environment
  • Reliability — Unbalanced valve design eliminates valve centering and pump stall-outs, even under low air inlet pressure
  • Durability — Diaphragms provide four times the life over competitors
  • Flexibility — Variety of body materials allow you to pump different fluids
  • Commitment — Ingersoll Rand / ARO diaphragm pumps come with a five-year warranty

Bolted construction for safe reliability and ease of assembly

All Ingersoll Rand / ARO diaphragm pumps use bolted construction that process professionals demand. Ingersoll Rand / ARO non-metallic diaphragm pumps also utilize fasteners that are constructed of 300 Series stainless steel for maximum chemical resistance.

Bolted is safer— Bolted construction reduces the risk of spills and environmental contamination, and the attendant, mandatory reports to regulatory agencies that spills can create.

Bolted is reliable— Bolted construction withstands the heavy loading that diaphragm pumps are subjected to, without concerns about breakage or loosening.

Bolted is easier to assemble— Our bolted design allows for easy positioning and alignment of parts during reassembly. This is a significant advantage over bandclamp style pump fasteners, which are difficult to align and hold together during reassembly.

Bolted is less expensive— This design uses standard bolts that cost significantly less to replace. Non-standard fastening devices (such as band clamps) are considered wear parts and are more expensive to replace.

Positive priming provides instant start-ups
Check valves are located close to the diaphragm chambers, ensuring a positive pri

Product Category
Liquid Handling Pumps
Pump Type
Diaphragm Pump