A Spark-Free Solution: Why Air Operated Diaphragm Pumps Are a Safer Choice

A Spark-Free Solution: Why Air Operated Diaphragm Pumps Are a Safer Choice

Diaphragm pumps operated with air can be maintained easily and provide a low-cost solution for many applications. The pumps are self-priming and sealed. they maintain variable expulsion pressure without requiring complex operating.

The diaphragm made of elastomer flexes between two pumping chambers creating tensions that are either negative or positive that could be used for moving fluids – which are sucked in during discharge and pushed back during suction. This loop is repeated over and over.

Fluid Transfer Innovation

Double diaphragm air operated pumps (AODD) are a versatile pumping device that allows for the transfer of many different viscosities and liquids. They’re much safer as compared to other pumps since they don’t require electricity and can be specified to be used in ATEX zones, hygienic applications and 3A accreditations.

Two diaphragms connect through a central section that is home to one air valve. This valve is able to channel compressed air towards the back of diaphragm number one creating one-way pressure that pushes fluid out of the pump. While diaphragm 2 performs suction stroke. This is accomplished by atmosphere pressure pushing the liquid to the suction ball valve. It is then adjusted using the speed of the pump. The motion of the pump is similar to the inhalation and exhalation concept of human breathing.

Versatile Pumping Solution

Positive displacement of AODD pumps makes sure that they can be used to may bom mang khi nen manage liquids throughout a vast range of industries. If there’s the possibility of having access to an air compressed supply the pump can be placed wherever needed.

AODD pumps are seal-less they do not need for complex systems to manage flow rates and pressures. The diaphragm elastomers can be customized to fit the particular fluid. There are various durometers to offer different degrees of resistance to chemical and environmental conditions. The design and shape of the diaphragm has an impact on flow and pressure levels as well as lifespan. It is crucial for a successful operation. The right choice of material to suit your needs will allow you to reduce overall operating costs.


Air Operated Diaphragm Pumps (AODD) operate by compressing air. They are able to eliminate the threat that electricity could contact a device. They can be utilized in applications where it is unsafe or unsuitable to utilize electric pumps because AODD’s don’t emit sparks, flashes, the leakage or short circuits.

They are perfect for the transportation of liquids with shear sensitivities, and are often ideal for situations that require a substance to be pumped from below the surface. They’re also incredibly mobile and are able to be created smaller to make them more compact.

The wetted materials used in construction can differ, and there is a selection among an 316L Stainless Steel, Neoprene, Viton or PTFE for diaphragms as well as balls. Depending on the application an appropriate choice of materials could be required to ensure optimal chemical compatibility. These pumps are intrinsically safe and could be ATEX certified to be used in areas of high risk.

Pump Applications Across Industries

Diaphragm pumps operated by air are able to transport various liquids, ranging from highly viscosity chemical through into fuel and food. They can cope with solids as high as 40% in weight. They are able to be adapted to meet flows and pressures for each installation.

During the suction cycle compressed air fills one of inside chambers. This pushes the opposite diaphragm towards the liquid chamber, and raises the valve’s bottom ball to draw in the fluid. Once this is complete the air switch is turned off, and the procedure continues, switching between the two diaphragms, creating an action of double-acting pumping.

In general, pumps are fitted with stroke counters for integrating into PLC systems to monitor pumps’ performance as well as control maintenance schedules. Additionally, they can be fitted with internal pulsation dampeners in order to reduce vibration and water hammer.

Maintenance and Reliability

Unlike most pumps, air operated double diaphragm pump (AODD) can run dry and do not require any electrical power. These are known as the “workhorses” of the industrial pump world. But, they need to be taken care of properly in order to maintain their efficiency and reliability.

Regular inspections can help prevent frequent problems like damage to the valve or diaphragm which could significantly reduce your pump’s life. What the material your diaphragm made from (EPDM rubber, or PTFE) will impact its longevity as well as its stiffness.

Checking the position of valves that are manually controlled for suction and discharge while you are maintaining can be a way to avoid issues, such as blockage of the pump. Insufficient lubrication or improper mounting of the pump can also cause a variety of other issues.