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 & Gas, Chemical and Petrochemical markets.

Benefits

  • The Ultimate in heavy duty pump design.
  • The new EXP is 20 – 40% more efficient than our competitors.
  • Efficiency – Simul-Shift™ valve provides ultra-positive, reliable shift signal
  • Reliability – ARO’s patented ‘Unbalanced’ air valve ensures no-stall operation
  • Versatility – Broad range in materials of construction for optimum fluid compatibility
  • Environmentally Sound – Bolted construction for leak-free fluid handling
  • Serviceability – Easier service through modular design

Accessories

  • 66084-1 Air Line Connection Kit: contains Piggyback Filter / Regulator, pipe nipple & 5’ section of hose
  • 67237 Diaphragm Failure Detection Kit
  • 67350 Cycle Counter Kit
  • 67174-15 Screened Inlet Adapter Kit
  • 637389 Air Section Service Kit
  • 637375-XX Fluid Section Service Kit

Pump Casing Materials

  • Aluminum
  • Cast Iron
  • Stainless Steel
  • Hastelloy-C

Diaphragm Materials

  • LongLife PTFE
  • Santoprene
  • Hytrel
  • Nitrile
  • Medical Grade Santoprene
  • PTFE w/ Santoprene backer
  • Viton

Specifications

  • Maximum Flow gpm (lpm): 123 (465)
  • Maximum Discharge Pressure psi (bar): 120 (8.3)
  • Fluid Ports Inlet/Outlet (bsp): 1-1/2 – 11-1/2 NPTF Rp1-1/2(1-1/2 -11 BSP) (Side or Center) 1-1/2 ANSI/DIN (SS only/Center)
  • Material of Construction: Aluminum, Cast Iron, Stainless Steel, Hastelloy®
  • Maximum Solids in (mm): 1/4 (6.4)
  • Maximum Dry Suction Lift ft (m): 14 (4.2)
  • Available with Long-life PTFE diaphragms.