Anelysis

    ARO Diaphragm Pumps

    ARO Air Operated Diaphragm Pumps are designed for general use. They can easily pump from clean, light viscosity fluids to corrosive, abrasive medium viscosity fluids and can transfer large particles without damage. Due to their pneumatic motor, they can be used in potentially explosive areas. Most of the ARO Diaphragm Pumps are ATEX certifi ed (CE ExII 2GD X).

    ARO Diaphragm PumpsHighly flexible
    ARO diaphragm pumps offer the ability to vary the flow outlet and discharge pressure as slow as one litre (gallon) per minute up to 1040 litres (275 gal) per minute for our larger sizes and adjust fl uid pressure up to 8.6 bars (125 psi), with just using an air filter/regulator or a needle valve.

    Self-priming
    These pumps are self-priming up to an elevation of 8.3 m (27.2 feet) with water and can operate dry without any damage. If the fl uid outlet is closed, the pump stops; it restarts with the reopening of the fluid circuit; no pressure relief valve or bypass is necessary.

    Wide range of material configurations
    The ARO range of diaphragm pumps offers many materials of construction ideal for the chemical industry: our metallic offering consists of aluminium, cast iron, stainless steel and Hastelloy. Our non-metallic offering consists of polypropylene, acetal and PVDF.

     

    ARO Diaphragm Pumps Range and Applications

    Compact Pumps, 1/4” to 3/4” ports
    Ideal for OEM and general industrial applications, these pumps feature big performance in a small package. Flow rates up to 56 l/min (15 gal) with a large range of material configurations.

    EXP Series Pumps, 1” to 3” ports
    ARO’s Process Grade, Expert Series Pumps feature the best total cost of ownership compared to some of our leading competitors. A favorite among process professionals with fl ow rates up to 1040 l/min (275 gal) and a large range of material configurations.

    Pro Series Pumps, 1” to 3” ports
    ARO’s Industrial Grade, Pro-Series Diaphragm Pumps provide high performance and stall-free reliability with fl ow rates up to 897 l/min (237 gal).

    Specialty Application Pumps
    Pumps providing the same high level of performance and satisfaction but in a design tailored for your specific application. This range includes many specific models (see details pages 8 and 9).

    Productivity: Maximized flow rates + Minimized pulsation and air consumption = Maximum Performance.

    Versatility: Multiple porting options available along with interface options allow you to customize this pump specifi cally to your OEM application.

    Reliability: Lube free patented differential valve both on major air valve and SimulShift™ (pilot valve) provides reliable worry free operation – fluid on demand every time.

    Environmentally Sound: Bolted construction in conjunction with a wide range of material options provides maximum chemical and leak resistance.

    Serviceability: Modular construction, reduced parts count and simple to use repair kits minimize repair time and cost.

    Patented ARO Air Motor Technology
    1
    SimulShift™ Valve; avoids stall-out-provides faster pump trip-over with more flow.
    2
    Unbalanced” Major Air Valve; eliminates pump stall-out, even under low air inlet pressures.
    3
    “D” Valve for optimum energy efficiency while avoiding costly air “blow-by” – ceramic construction for long service life.
    4
    Quick Dump™ Checks, eliminates pump ice-up by diverting cold, wet exhaust air away from the major air valve.

    ARO Diaphragm Pumps: the best “total cost of ownership” in the industry

    Energy Efficient: ARO EXP pumps are 20% to 40% more effi cient than competitive models.

    Downtime Reduction: The mean time between failure for EXP is up to four-times longer than competitive pumps.

    Installation/Repairs and Spare Parts: EXP diaphragms provide up to four-times the life of competitive diaphragms. EXP spares include cost-effective service kits, not the expensive full-motor replacements of some competitors.

    EXP Total Value Proposition: EXP provides the best total cost of ownership compared to some of our leading competitors.

    ARO Diaphragm Pumps

    Non-Metallic Models – Range and Performance
    1/4″ 3/8″ 1/2″ 3/4″ 1″ 1″ 1 1/2″ 1 1/2″ 2″ 2″
    20 l/min (5.3gal) 40.1 l/min (10.6gal) 54.5 l/min (14.4gal) 56 l/min (14.8gal) 178 l/min (47gal) 200 l/min (53gal) 378 l/min (100gal) 465 l/min (123gal) 549 l/min (145gal) 696 l/min (184gal)
    8.6 bar (125 psi) 6.9 bar (100 psi) 6.9 bar (100 psi) 6.9 bar (100 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi)  8.3 bar (120 psi)
    1/4” NPT


    1/4” BSP

    3/8” NPT


    3/8” BSP

    1/2” NPT


    1/2” BSP

    3/4” NPT


    3/4” BSP

    1” NPT


    1” BSP


    1” ANSI / DIN

    1” NPT


    1” BSP


    1” ANSI / DIN

    1 1/2” ANSI / DIN 1 1/2” ANSI / DIN 2” ANSI / DIN 2” ANSI / DIN
    1/4” NPT


    1/4” BSP

    3/8” NPT


    3/8” BSP

    1/2” NPT


    1/2” BSP

    3/4” NPT


    3/4” BSP

    1” NPT


    1” BSP


    1” ANSI / DIN

    1” NPT


    1” BSP


    1” ANSI / DIN

    1 1/2” ANSI / DIN 1 1/2” ANSI / DIN 2” ANSI / DIN 2” ANSI / DIN
    Polypropylene


    PVDF


    Groundable acetal

    Polypropylene


    PVDF


    Groundable acetal

    Polypropylene


    PVDF


    Groundable acetal

     Polypropylene Polypropylene


    PVDF

    Polypropylene


    PVDF


    Groundable acetal

     Polypropylene


    PVDF

     Polypropylene


    PVDF


    Groundable acetal

    Polypropylene


    PVDF

    Polypropylene


    PVDF


    Groundable acetal

    1.6 mm (.06in) 1.6 mm (.06in) 2.4 mm (.09in) 2.4 mm (.09in) 3.2 mm (.12in) 3.2 mm (.12in) 6.4 mm (.25in) 6.4 mm (.25in) 6.4 mm (.25in)  6.4 mm (.25in)
    With wetted parts in groundable acetal. With wetted parts in groundable acetal. With wetted parts in groundable acetal. With wetted parts in groundable acetal. With wetted parts in groundable acetal. With wetted parts in groundable acetal.
    Metallic Models – Range and Performance
    1/2″ 3/4″ 1″ 1″ 1 1/2″ 1 1/2″ 2″ 2″ 3″ 3″
    45.4 l/min (12gal) 51.5 l/min (13.6gal) 133 l/min (35gal) 197 l/min (52gal) 340 l/min (90gal) 465 l/min (123gal) 651 l/min (172gal) 651 l/min (172gal) 897 l/min (237gal) 1041 l/min (275gal)
    6.9 bar (100 psi) 6.9 bar (100 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi) 8.3 bar (120 psi)  8.3 bar (120 psi)
    1/2” NPT


    1/2” BSP

    3/4” NPT


    3/4” BSP

    1” NPT


    1” BSP

    1” NPT


    1” BSP

    1 1/2” NPT


    1 1/2” BSP

    1 1/2” NPT


    1 1/2” BSP


    1 1/2” ANSI / DIN

    2” NPT


    2” BSP

    2” NPT


    2” BSP


    2” ANSI / DIN

    3” NPT


    3” BSP

    3” NPT


    3” BSP

    1/2” NPT


    1/2” BSP

    3/4” NPT


    3/4” BSP

    1” NPT


    1” BSP

    1” NPT


    1” BSP

    1 1/2” NPT


    1 1/2” BSP

    1 1/2” NPT


    1 1/2” BSP


    1 1/2” ANSI / DIN

    2” NPT


    2” BSP

    2” NPT


    2” BSP


    2” ANSI / DIN

    3” NPT


    3” BSP

    3” NPT


    3” BSP

    Aluminium


    Stainless steel

    Aluminium Aluminium


    Cast iron


    Stainless steel

    Aluminium


    Cast iron


    Stainless steel


    Hastelloy

    Aluminium


    Cast iron


    Stainless steel

    Aluminium


    Cast iron


    Stainless steel


    Hastelloy

    Aluminium


    Cast iron


    Stainless steel

    Aluminium


    Cast iron


    Stainless steel


    Hastelloy

    Aluminium


    Cast iron


    Stainless steel

    Aluminium


    Cast iron


    Stainless steel


    Hastelloy

    2.4 mm (.09in) 2.4 mm (.09in) 3.2 mm (.12in) 3.3 mm (.12in) 6.4 mm (.25in) 6.4 mm (.25in) 6.4 mm (.25in) 6.4 mm (.25in) 9.5 mm (.37in)  9.5 mm (.37in)
    All models All models All models With aluminium or stainless steel motor All models With aluminium or stainless steel motor All models With aluminium or stainless steel motor All models With aluminium or stainless steel motor

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