Industrial equipment supplier BMG’s new EVO series electric diaphragm pumps – which form part of flow creation and industrial product supplier Ingersoll Rand’s ARO fluid handling products – are designed to enhance energy efficiency and improve fluid handling productivity in many industries, including the chemicals and petrochemicals sectors.

EVO metallic diaphragm pumps are manufactured in cast iron, aluminium and stainless steel for applications that require durability and tensile strength.

Non-metallic options include polypropylene and conductive polypropylene for high corrosion resistance – these are especially useful in caustic services in the chemicals industry.

These versatile electric diaphragm pumps, which incorporate features that have previously not been available in a single pump solution, are engineered to deliver high performance and serviceability, enabling users to achieve high efficiency, extended service life and the “best” cost of ownership.

“The new EVO series integrates key benefits of ARO air-operated pumps, with important features from other pump technologies, to offer an efficient electric diaphragm pump with controllability,” says BMG national pumps product manager Joe Pinheiro.

He adds that conventional electric pumps normally have a double diaphragm design with a direct drive electric motor, while new ARO EVO pumps have a specially designed triple diaphragm, with an integrated variable drive, maintenance-free gearbox and control panel.

Additionally, the leak-free design with a secondary containment system prevents the escape of hazardous fluids and oils and is enhanced by automatic leak detection.

“[With] the highly-resistant three-chamber design, there is no need for a pulsation dampener,” he says adding that these pumps have a “true deadhead” when the downstream valve is closed, automatically preventing the pumps from spinning, while holding the pressure.

EVO electrical diaphragm pumps can handle the most aggressive and corrosive fluids and are available from BMG in a choice of two sizes and five different materials of construction.

One-inch pumps are equipped with a 2.2 kW gear motor and 3.0 kW variable-frequency drive (VFD) that provides versatility for small batch and dosing applications, while two-inch pumps are equipped with a 5.5 kW gear motor and 7.5 kW VFD for large fluid transferring applications.

Other important features of EVO electrically-operated diaphragm pumps include easy installation and maintenance – even in confined spaces. Further, because this is a single pump system, there is no need for users to purchase accessories.

The system, with built-in control and monitoring capabilities, is Internet-of-Things-ready and offers full integration through programmable logic controllers or human-machine interface devices.

These electric diaphragm pumps, which conform to stringent international quality and safety specifications, are also supplied with hazardous duty certifications for hazardous environments.

Apart from applications in the chemicals and petrochemicals sectors, these pumps are designed for use in processing, mining, wastewater treatment, manufacturing and general industry.

Also, BMG’s ARO range includes the PRO series air-operated diaphragm pumps, designed to efficiently pump any type of liquid – from clean, light and medium viscosity fluids through to highly corrosive and abrasive fluids.

ARO pumps can also transfer large particles without damaging the pump.

Notable features include a seal-less, self-priming design, with low material shear and minimal maintenance requirements.

These portable pumps are easy to install and can run dry without damage.

Most ARO diaphragm pumps are ATEX-certified, meaning they are certified in line with the EU directive on equipment and protective systems in potentially explosive environments.

This feature makes the ARO pumps ideal for underground applications.

The ARO PRO series’ air-operated diaphragm pump air motors, which are lubrication-free, have positive sealing characteristics and make use of a specially designed unbalanced air valve to prevent stalling issues associated with operation at low pressures.

Meanwhile, exhaust valves divert cold air away from components that are prone to ice build-up.

Metallic and non-metallic air-operated diaphragm pumps are available from BMG in various materials and porting configurations to suit numerous applications, including transfer, loading/unloading/filling, re-circulation, system flushing and batching/blending.

A range of speciality pumps is also available from BMG, including stainless-steel sanitary pumps; US Food and Drug Administration-compliant 2:1 and 3:1 high-pressure pumps; submersible double diaphragm pumps; air-driven submersible pumps; anti-freeze blending pumps; and Underwriters Laboratories-approved fuel transfer pumps.

BMG supports this range with a technical advisory service to ensure the selection of the most suitable pump for every application.

The company also supplies a full range of ARO diaphragm pump parts and accessories for standard repair and maintenance requirements.