AIR OPERATED DIAPHRAGM PUMPS

Crest Debem AOD pumps are reliable, versatile and easy to use

this makes them ideal for a wide variety of applications and industries such as chemical process & transfer, water treatment, paper & pulp, food and pharmaceuticals and are suitable for viscous, abrasive and corrosive fluids.

Our range includes metallic, plastic, FDA and pharma approved materials and can supplied ATEX zone 1 or 2 and sizes from small, machine mounted pumps to large ‘full flow’ units. We hold a large stock of plastic pumps and metallic pumps, and non standard pumps are available on short lead times.

View the whole Diaphragm Pump range below

SBOXER 7

BOXER

AODD pumps in metallic or plastic materials. Ideal for pumping liquids with high apparent viscosity, even if containing suspended solids, plus the vast range of materials available makes them compatible with any type of fluid present on the market.

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Foodboxer

FOODBOXER

FDA compliant pumps for the food industry. These pumps are ATEX – IECEx certified and built in AISI316 / AISI316 L. Suitable for handling fluids with high apparent viscosity and demanding applications.

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Pulsation Dampener

PULSATION DAMPENERS

A real must for any pneumatic pump in those typical applications where a smooth, regular fluid output is required. These are also availble as ATEX-certified, making them suitable for potentially explosive environments.

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Fullflow aodd pump

FULLFLOW

Flap valve pumps perfect for larger solids and more viscous fluids. A unique pump of its kind with its features and benefits allowing allows for up to 600mm lengths of solid.

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remote control AODD Pump

REMOTE CONTROL

Double diaphragm pumps of the RC Line have been designed for all applications that require the pump to be controlled remotely or directly by the machine on which the pump is installed.

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Cubic air operated diapraghm pump

CUBIC

The ATEX certified air-operated double diaphragm pumps, with their unique design and limited size, are ideally suited in applications where moderate quantities of fluid must be pumped in small spaces.

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AISIBOXER

Volumetric pumps driven by compressed air with double diaphragm, built in mechanically polished AISI 316 L. Aiserboxers are MOCA – ATEX – FDA certified.

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SANIBOXER

AODD pumps, designed for use in pharmaceutical and cosmetic industries. Equipped with special fiber optic sensors to detect any damage to the diaphragms, resulting in fluid leaks.

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How does an AODD pump work?

An An air operated diaphragm pump is a type of positive displacement pump that uses compressed air to move fluids. It consists of two flexible diaphragms, connected by a central chamber, and drive by compressed air. When the air is applied to one side of the diaphragm, it flexes inward and pushes the fluid out of the pump. At the same time, the other diaphragm relaxes and allows fluid to enter the chamber. This alternating action creates a pumping action, allowing the AOD pump to move fluids efficiently.

The benefits of using an air operated diaphragm pump

An air operated diaphragm pump offers several benefits across various industries.

Versatility: AOD pumps are versatile and can handle a wide range of fluids, including corrosive and abrasive substances, viscous liquids, and shear-sensitive materials.

Self priming: AOD pumps can self-prime, meaning they can evacuate air from the suction line and draw fluid into the pump upon startup without the need for external priming.

Dry-running capability: They can run dry without damaging the pump, which is useful in applications where fluid flow may be intermittent or unpredictable.

Portable and simple installation: AOD pumps are typically compact and easy to install, requiring minimal infrastructure or support systems.

Adjustable flow rates and pressure: Flow rate and pressure can often be easily adjusted by regulating the air supply pressure, providing flexibility in various applications.

Ability to handle solids: AOD pumps can handle solids and slurry, making them suitable for applications where solids are present in the fluid being pumped.

Low maintenance: Compared to some other types of pumps, AOD pump have relatively few moving parts, leading to simpler maintenance requirements and reduced downtime.

Safe operation: AOD pumps are inherently safe to operate because they do not use electricity in the pumping process. This makes them suitable for use in hazardous environments or applications where electric pumps may pose a risk.

Leak-free operation: The double diaphragm design helps to prevent leaks, ensuring a clean and safe working environment.

Cost-effective: AOD pumps can offer cost savings in terms of both initial investment and ongoing maintenance, especially in applications where their unique features provide advantages over other pump types.

Overall, the benefits of AOD pumps make them a preferred choice in a wide range of industries, including chemical processing, mining, wastewater treatment, food and beverage, and pharmaceuticals.