Diaphragm pumps
One of the most common and widely used types of positive displacement pumps, which are unique and specially manufactured, available in either a hydraulic or mechanical manner, are diaphragm pumps, these types of pumps are used to control the pressure and flow rates. Diaphragm pumps are a batch of pumps that perform fluids flow up and down movement of a fluidized surface using an elastic piece.
The rubber or diaphragm surface is internally pumped. For the production of these diaphragms, synthetic rubbers such as polytetrafluoroethylene (PTFE), Teflon or many other types of synthetic rubbers or similar products with close proximity are often used. The type of operation of the diaphragm pumps is that the surface is first pushed to the liquid and increases the pressure to the diaphragm, and ultimately increases the pressure and proportional to the nominal aperture value of a certain amount of the transfer fluid It will be given.
When all liquid is left under pressure inside the pump or diaphragm, it is again filled with more liquid. Usually, a control valve or one side tap is used to prevent fluid flow back into the diaphragm pump path.
Fluid control in the diaphragm pumps is done by a piston or hydraulic fluid. Usually, using low-pressure diaphragm pumps or low-lift pumps, to carry heavy liquids that are sticky in the form of heavy oils, but for high-pressure and high-flow fluids, usually other types of pumps Hydraulic is used. For example, Teflon diaphragm pumps are commonly used for applications with high precision and high pressure.
The diaphragm pumps have many key features, but one of the most prominent features is the possibility of long-term run dry of these pumps without damage. The reason for such a feature in these pumps is that, instead of using the pump operation, the fluid transporting caused most wear.
Typically, heavy-duty diaphragm pumps are used to transport heavy and very heavy liquids that are likely to corrode, even though their use in home use is also very significant. Different types of industrial sheets, such as various plastics, or a variety of metals, such as aluminum or stainless steel, are also used to make the diaphragm pump chamber.
The use of diaphragm pumps is seen in almost most industries, which is due to the extremely high flexibility and durability of these types of pumps. In the current situation, these types of pumps in the vehicles or even airplanes are different from the various uses of diaphragm pumps in the industry.
Even more interesting is that even diaphragm pumps are also significantly used in the medical industry, for example, as one of the most important elements of artificial heart. Each day, the range of these pumps is added and used in a variety of applications. Today even diaphragm pumps built with specific applications, for example, are used to transport abrasive liquids such as concrete, acids and other chemicals that are made of a high resistance to corrosive materials.