There are many types of pumps available on the market. Individual models differ in parameters, specificity and purpose. If you are wondering what the features of diaphragm pumps are, our article is for you. There you will find a description of how these devices work, as well as a number of advantages associated with their use.
Principle of operation
As the name suggests, diaphragm pumps work by using membranes. But how exactly does the whole process work? Important elements include: valves installed with great precision at the pump inlet and outlet. Thanks to them, it is possible to create a suction effect on the suction side and a forcing effect on the pressure side. It should also be added that individual pump models differ in the drive used in them. Some proposals operate on the basis of an internal combustion engine or an electric motor, others on the basis of a pneumatic or hydraulic drive. Thanks to such a medium, i.e. the drive, it is possible to influence one of the membranes, which in turn is connected to another element of this type via a common axis. The resulting cyclic movements are repeated taking into account the continuity of the drive action.
In the case of a diaphragm pump, parameters are important, such as maximum efficiency; actual performance, which depends on, among others, on the type of material we are dealing with and its viscosity and density; or the pressure achieved. It is also worth paying attention to whether a given pump model has smooth regulation of the compressed air supply, the possibility of inclusion in an automatic control system, the possibility of regulating the maximum efficiency using a valve, and control of the number of work cycles.
Diaphragm pumps - application
Diaphragm pumps are a term covering a wide group of devices that are used in many situations. The first association is certainly the chemical, galvanic, mechanical and construction industries. But that's not all.
Diaphragm pumps, thanks to their specificity, allow the safe use of liquids without the possibility of spilling or contaminating them. These tools are also characterized by high tightness, which in turn guarantees the safety of individual employees. Additionally, their use allows for maximum hygiene. All this makes Diaphragm pumps are widely used in the food, pharmaceutical and cosmetics industries.
Diaphragm pumps - advantages of use
Experts agree: diaphragm pumps are, above all, high efficiency and efficiency. However, there are many more advantages of these tools. The characteristic self-priming is possible even at a depth of several meters, and each pump is characterized by universality, i.e. the ability to perform activities such as mixing, dosing or pumping. The innovation of diaphragm pumps is also visible in the fact that they are resistant to harmful factors they come into contact with. They are perfect for contact with flammable, chemically aggressive liquids or those with solid contaminants.
The advantages of diaphragm pumps also include the ability to work at low temperatures, no foaming and overheating of liquids, and the ability to work with contaminated air. Modern models available on our website also have a relatively small number of parts, which makes them work more efficiently and are less susceptible to failures. They are also characterized by greater fluidity, and the number of unfavorable pulsations is reduced to almost zero. Based on all these features, we can conclude that the currently available diaphragm pumps combine all that is best for efficient and effective operation in various areas.
Quality and materials used
The good operation of a diaphragm pump depends largely on the materials used in its production. It turns out that to perform the so-called the wet part, i.e. the part that is in direct contact with the liquid, is used, among others, plastics such as grounded acetal, polypropylene, kynar (PVDF), as well as metals: cast iron, hastelloy, stainless steel, aluminum. Other raw materials are used in the production of the so-called working elements. When it comes to membranes, the most appreciated are, among others: santoprene, neoprene, geolast, viton, buna-N, teflon/santoprene, hytrel; sockets are based on hardened stainless steel, aluminum, cast iron, santoprene or polypropylene. In the production of valve balls, materials are used such as geolast, polyurethane, acetal, neoprene, santoprene, Viton, stainless steel, buna-N, Teflon and hytrel for food products.
