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What is a Diaphragm Pump?

Frequently preferred pumps in the industrial area; Apart from the transfer processes of fluids, it has an extremely important place in filtering or providing closed circuit liquid circulation. Today, we see that these types of pumps find a response in many sectors, especially in petroleum, machinery, water treatment or chemistry.

Pumps are divided into several types depending on their basic functions, energy sources, materials or fluid type. Pumps that rely on a compressed air source for their operation are directly called "air operated pumps". There are two different diaphragms in the content of this type of pump. Pumps with this feature are defined as "diaphragm pumps". Diaphragm pumps are examined in two separate groups as air operated diaphragm pumps and electric diaphragm pumps.

Working Principles of Air Operated Diaphragm Pumps

Special types of pumps known as "air operated pumps" are generally used in environments with compressed air in the range of 2-8 bar. In cases where air pressure is high, it is possible to reach average pressure values ​​through the air regulator. The compressed air in question is directed to the air inlet part of the pump using special methods. In this way, the movement of the reciprocal diaphragms in the interior is allowed. When we look at air diaphragms, we can also encounter models with a pressure range of 15-20 bar range. These are considered high pressure air diaphragm pumps.

Two diaphragms located inside the air operated pumps are connected to each other by a common shaft. In addition, inside the diaphragms, there are chambers and ball valves. The chambers inside the air operated diaphragm pumps vacuum and pressurize the liquid as a result of the movement of the diaphragm. The system continues to run as long as the compressed air source is available. Ball valves, on the other hand, provide ideal sucking or suppression of the liquid as they serve to open and close the inlet or outlet of the reservoir.

Features of Air Operated Diaphragm Pumps

Air operated diaphragm pumps are the pumps that make a difference in terms of efficiency and performance. Its most basic feature is that it can work without the need for any electrical source. It is frequently preferred due to its very practical and simple system and ease of maintenance. In addition, if the discharge line is closed due to various reasons, it can wait under load and will not be damaged. It is self-priming and does not need gravity flow like many other pumps. It can be produced from different material types depending on the preferred industry.

Electric Operated Diaphragm Pumps

Electric operated diaphragm pumps have many features that air operated diaphragm pumps have. The most important advantage is that it provides the opportunity to transfer with precise dosage due to its electrical source. It provides a stable and impact-free flow. Metal or plastic material can be used in pump bodies. Having ATEX certification is among the determining factors.