The Ultimate Guide to Electric Double Diaphragm Pumps

The Ultimate Guide to Electric Double Diaphragm Pumps

Electric-operated double Diaphragm (EODD) pumps, also known as electric diaphragm pumps, are a type of positive displacement pump that uses an electric motor to drive a flexible diaphragm. Unlike pumps that rely on rotating blades, EODD pumps create suction and pressure through the reciprocating motion of the diaphragm.

The two diaphragms of EODD are connected by a shaft that passes through the centre,The operation mentioned here is for AODD pump and not EODD. Please change to EODD pump working principle.

An EODD pump doesn't require manual priming before operation. This type of pump creates a pressure differential that automatically draws liquid into the pump chamber. Even if air or vapour isn't fully cleared, a EODD pump can still pull fluid into the system.

AN EODD pump has an electric motor whose core function is to use electrical power to produce mechanical force. The motor works on a linear mechanism, transforming the rotary motion into a back-and-forth motion. On the other hand, the diaphragm is there to serve as a barrier within the pump. Both the diaphragm moves back and forth to achieve the desired result. The pump chamber is where the liquid is filled, stored, and emptied by the diaphragm's to and fro motion. The valves are strategically positioned at the pump chamber's entry and exit points to enable the fluid's movement.

Where are EODD pumps used?

Electric-operated double Diaphragm (EODD) pumps are used in a variety of modern industries where displacement of fluids is essential:

Chemical Processing - EODD pumps are designed to handle aggressive chemicals, acids, and alkalis, thanks to their leak-proof and corrosion-resistant design. As a result, they are extremely useful in industries where chemical processing is required.

Food and Beverage – the food & beverage industry uses EODD pumps to move liquids like syrups, spreads, sauces, and other food products without compromising their texture or quality.

Pharmaceutical Manufacturing – In the pharmacy industry, EODD pumps fulfil the requirement of transferring pharmaceutical liquids in a sterile, leak-proof manner to ensure they meet the stringent criteria of the final product.

Water and Wastewater Treatment -  EODD pumps, such as sludge, slurries, and abrasive materials, are also widely used to manage fluids in treatment processes.

Printing Industry -  Ink solvents and other printing fluids are moved with absolute precision by EODD pumps.

Oil and Gas - These pumps also find their use by the oil and gas companies to handle a variety of fluids, including crude oil, refined products, and chemicals used in drilling and production processes.

Pulp and Paper - The paper manufacturing process calls for the displacement of slurries, chemicals, and other fluids. And EODD pumps simply fit the bill.

Marine and Offshore - EODD pumps are also utilized in marine applications to transfer various fluids, including bilge water and chemicals.

IDEX Cognito: A Trailblazer in the World of Electric Diaphragm Pumps

IDEX Cognito stands out among diaphragm pump manufacturers – both Indian and global – as it offers a diverse range of electrically operated double diaphragm (EODD) pumps known for their performance, efficiency and cost-effectiveness.

Delivering impressive flow rates, strong suction capabilities, and seamless displacement of fluids of various viscosity, IDEX Cognito's EODD pumps are well-known among multiple relevant industries. These pumps are built to last for years, requiring minimal maintenance sessions. For decades, IDEX has been known for investing in research and innovation to create cutting-edge products for modern industries. IDEX Cognito's IoT-enabled EODD pumps feature advanced capabilities such as remote monitoring, predictive maintenance, and data-driven insights through CognitoSmartInsights. These capabilities enable users to make the best use of EODD pumps with utmost efficiency.

Featuring 3 hp, 5 hp, 7.5 hp, 10 hp motor and gearboxes, suction lift of up to 8.5 (wet conditions) and 5.5 (dry conditions), max discharge pressure of 8 bar and the capability to handle viscosity up to 15,000 cp, IDEX EODD pumps are the top choice of various industries.

IDEX has also been awarded for offering the most energy-saving product. High energy consumption is a significant challenge for industries that use traditional double-diaphragm pumps. Historically, Air-Operated Double Diaphragm (AODD) pumps relied on compressed air, which required energy-intensive compressors. But with the advancement of technologies, it was possible to come up with efficient solutions such as Electric Operated Double Diaphragm (EODD) pumps, which can achieve low pulsation without the need for pulsation dampeners, resulting in substantial energy savings.

Their positive displacement design allows electric diaphragm pumps to effectively handle anything - from fluids containing suspended solids to abrasive particles. EODD pump's mechanism involves gentle pumping action, which minimizes shear stress, making them ideal for sensitive liquids like paints, pigments, polymers, latex solutions, slurries, sauces,  shampoos, coatings, milk, and oil emulsions.

To know more about IDEX Cognito's award-winning EODD pumps,
Visit our website today - https://www.idexcognito.com/