Something About Hydraulic Pumps

The hydraulic pump, which is a water pump that uses the kinetic energy of flowing water to force a small fraction of that water into a reservoir at a higher level, is a mechanical device used to move liquids in a hydraulic system.

It can be mainly divided into hydrostatic and hydrodynamic. The first is a type of positive displacement pumps. Unlike the hydrostatic pump, the latter can be fixed displacement, in which the displacement cannot be adjusted. At the same time, hydrodynamic pumps have a more complicated construction that allows the user to adjust the displacement according to special needs.

How does the hydraulic pump work? It works based on Pascal’s Law which states that “The pressure, in a static hydraulic fluid in a closed system, is the same everywhere”. Generally, in a hydraulic pump, the water or other fluid is highly pressurized and moves through various motors and cylinders. To control the fluid, various valves, hoses, and tubes block or disperse the fluid creating pressure and force without the need for an external power source. By using the kinetic energy (molecular energy) of the water / fluid to run the pump, no electricity is needed. And according to the law, if the pressure increases in one area of ​​a system, it increases throughout the system.

Of course, like many other types of pumps, the hydraulic pump also has a wide range of applications ΥΔΡΑΥΛΙΚΟΙ ΣΤΗΝ ΑΘΗΝΑ 24 GR. Its application can be summarized in transfer and circulation of liquids within the light industry and agriculture, irrigation and pressure increase. And it can also be applied to tin cooling systems and air conditioning systems.

And in everyday applications, especially hydraulic installation, one pump can serve more cylinders and motors. However, the concomitant problem is that in that case a constant pressure system is required and the system always needs full power. The most economical way to solve this problem is to give each cylinder and motor its own pump.

Hydraulic pumps include gear pump, screw pump, bent shaft pump, peristaltic pump, etc. All of these different types of pumps have many characteristics in common. Most of them are designed to be ideal for water supply, irrigation, commercial and industrial uses. Also, most of them are made of cast iron and brass. Taking the gear pump as an example, it is the most common where the pressure can remain low in simple systems. They are simple, reliable, and much less sensitive to dirt.

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