Atendendo a uma ampla gama de mercados, as bombas pneumáticas de diafragma são equipamentos versáteis que entregam inúmeros benefícios. Desde o tratamento de água em residências, até a indústria farmacêutica, elas conseguem garantir produtividade e eficiência para diversos setores.
Para te ajudar no processo de tomada de escolha, preparamos as 16 principais vantagens que as bombas pneumáticas de diafragma podem trazer para a sua empresa, veja a seguir!
Benefício 1: podem funcionar a seco
Pneumatic diaphragm pumps have the ability to run dry for a long time, without the risk of damaging its structure or components. Dry running is quite common, especially in dewatering reservoirs and unloading tanks.
Benefit 2: Offers efficient solids handling
In addition to working very well with liquids, pneumatic diaphragm pumps also handle solids laden fluids efficiently. Ball valve units can handle solids up to 19 mm in diameter, and valve units can pass semi-solid waste almost the size of a line.
Benefit 3: Safely pump deadhead
Deadheading is when the fluid pressure equals the air pressure feeding the pump. When a valve on the fluid side of the pump is closed, the pump will increase pressure until it is equal and stop pumping. When the valve is opened on the discharge fluid side of the pump, it will start pumping again. Pneumatic diaphragm pumps are an excellent alternative for intermittent operations.
Benefit 4: They do not harm the final product
These pumps operate smoothly and do not harm the product or foam. There are products that can be completely ruined when not handled gently, such as paints and coatings. This does not happen with other technologies, which can shear and damage the products.
Benefit 5: Requires no electricity
Pneumatic diaphragm pumps only need compressed air to operate, and can be grounded to ensure safer operation, particularly in explosive environments. This feature is critical when pumping flammable fluids or in the presence of smoke. Furthermore, this feature makes pneumatic pumps portable.
Benefit 6: they have a lower investment
Pneumatic pumps cost relatively less than other types of positive displacement pumps and do not require expensive motors and controls to operate. As a result, they eliminate the need for specialized installation. Considering their versatility and reliability, these pumps deliver a better cost-benefit ratio for companies, especially when compared to other technologies.
Benefit 7: Air-powered diaphragm pumps are self-priming
Unlike other pumping technologies, these pumps are self-priming and do not require positive inlet pressure. They can pull a height of up to 9.8 meters, or be positioned on the ground next to a tank and operate without inlet pressure up to 3 meters. Above that height, it is necessary to contact the manufacturer.
Benefit 8: They are submersible
This characteristic is a great advantage, especially in the mining, oil/gas, wastewater, marine, etc industries. Materials are compatible with the surrounding fluid. However, as they are capable of pulling at height, some users prefer to position the pumps at a level above the liquid.
Benefit 9: They have a sealless design
Pneumatic diaphragm pumps do not use and do not require expensive mechanical seals to operate. They feature elastomeric diaphragms and check valves to pull product in and out of the pump.
Benefit 10: Have variable flow and pressure without sophisticated controls
The pumps feature flow rates up to 280 gpm (1060 lpm), providing a wide range of flows without the need for sophisticated and expensive controls. Standard 1:1 ratio AODD pumps can produce pressures up to 125 psi (8.6 bar). High pressure units are generally used in applications that require greater force, such as injecting into pressurized lines.
Benefit 11: high chemical and high temperature resistance
Pneumatic diaphragm pumps can be manufactured from a wide variety of materials and can handle virtually any type of fluid. Many pump options are offered with wetted component materials manufactured from stainless steel, alloy C, aluminum, polypropylene, cast iron, PVDF and acetal. They can also be equipped with FKM, PTFE, EPDM, Santoprene and Nitrile materials, delivering solutions for various demands.
With regards to temperature, pneumatic pumps can easily handle heat up to 104 degrees Celsius and possibly more. In addition, they can also handle low temperatures, but below the freezing point, it is necessary to consult the manufacturer for guidance. Consulting the chemical resistance guide is essential.
Benefit 12: Can handle a wide viscosity range
Pneumatic diaphragm pumps can handle virtually any fluid that can flow up to 90,000 cSt (415,500 SSU) and are capable of being adjusted to achieve even more.
Using weighted ball valves and oversizing the pump can help when pumping very viscous products. To ensure greater efficiency, gravity feed can be applied.
Benefit 13: They are easy to clean
Pneumatic diaphragm pumps are easy to clean and disassemble, being possible, in most cases, to disassemble and clean them on site. Depending on the model, it can be cleaned without having to dismantle it.
Benefit 14: Meet certification standards
Pneumatic diaphragm pumps can meet different specifications and certifications, such as:
• 3-A
• EHEDG
• CE
• UL listed
• ATEX
• FDA compliant
• 1935/2004 Standard for Food Contact Materials
• CAE
• Maritime ABS
• ISO 9001
• ISO 14001
Benefit 15: Pneumatic diaphragm pumps are portable
Depending on the material used in the manufacture of the pump and its sizing, they can be moved easily.
Benefit 16: Easy to install
Pneumatic diaphragm pumps do not need to be laser aligned and do not require complex controls to operate efficiently with just an air supply. It can be controlled through a fluid discharge valve, and through compressed air control.
The Pneumatic Diaphragm Pump meets various industries
This equipment is highly versatile and can handle fluids in different sectors, such as:
• Car wash: tire/wheel cleaner, wax, drying agent, soap;
• Waste water/filter press feed: neutralize waste water, filter press feed ration 1:1 to fill the press (high pressure 2:1 in some cases to finish the cycle);
• Paints and coatings: latex transfer, paint transfer to filling line;
• Dairy products: iodine (ceiling disinfectant), disinfectant foam, chemical injection;
• Printing: ink and glue dispensing, lubrication (quick lubrication), oil dispensing/evacuation, antifreeze, windshield solvent dispensing and mixing;
• Wood finishing: lacquer spraying, thinners and solvents;
• Mine dewatering: evacuating water from a mine to a central reservoir;
• Metal machining: cooling oil filtration;
• Carpet manufacturing: latex transfer and circulation;
• Metallic finish: chemical transfer and circulation;
• Chemical manufacturing: chemical transfer, chemical reservoirs;
• Ceramics (tile, sinks, toilets): mold filling; providing ceramic slip for lines, enamel transfer and spraying;
• Food & Beverage: food packaging (mustard, ketchup), citrus (juice, citrus oils), wine, pepper, soy sauce, beer, juice concentrate, corn oil/syrups, salad dressing, condiments;
• Personal care: body lotions, soap, shampoo, hair products, laundry detergent, fragrances.
