ARO EXP 3” metallic diaphragm pumps achieve flow rates of up to 275 GPM (1040.9 LPM) and offer a wide array of material and porting configurations. These pumps are often used for transfer, filling, recirculation and batching in Ceramic, Paint, Oil & Gas, Chemical and Petrochemical markets.

    Available with Long-life PTFE diaphragms.

    Features

    • The Ultimate in heavy duty pump design.
    • Up to 4 times the life of traditional diaphragm pumps due to the EXP’s new convoluted diaphragm design.
    • 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

    • 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

    Pump Casing Materials

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

    Diaphragm Materials

    • Long Life PTFE
    • Santoprene
    • Hytrel
    • Nitrile
    • PTFE w/ Santoprene backer
    • Viton

    Specifications

    • Maximum Flow gpm (lpm): 275 (1,041)
    • Maximum Discharge Pressure psi (bar): 120 (8.3)
    • Fluid Ports Inlet/Outlet (bsp): 3” NPTF Rp3(3-11 BSP) (Center) 3” ANSI/DIN Flange
    • Material of Construction: PX30X-XXX-XXX-C: Aluminum, Cast Iron, Stainless Steel, Hastelloy® PX30X-FSP-XXX-C: Stainless steel and Hastelloy, ANSI/DIN Combination
    • Maximum Solids in (mm): 3/8 (9.5)
    • Maximum Dry Suction Lift ft (m): 14 (4.2)