What are hydraulic pumps, models, and benefits
What are hydraulic pumps, models, and benefits

What are hydraulic pumps, models, and benefits

Hydraulic pumps the idea was first commercially utilized for oil and gas wells. The pumps have a hydraulic drive system in them that converts mechanical energy into hydraulic energy. It works on the principle of hydrostatic energy that is the flow of hydraulic or fluid pressure. 

The basic working principle of a Riverlake hydraulic pump is to create a vacuum at the pump inlet and it forces the liquid from the reservoir to the from the inlet line to the pump through mechanical energy and forces it into the hydraulic system. 

These are positive displacement pumps in which the displacement cannot be adjusted. But there is another model of the hydraulic pumps that have a more complex construction built in which the displacement can be adjusted. 

To check out the various versions and models of hydraulic pumps click here. 

Understanding the different types of hydraulic pumps

To understand the hydraulic pumps in greater detail you will have to understand the types of hydraulic pumps. 

Let’s find out more about them…

Gear pumps

Gear pumps are fixed displacement pumps and are highly economical for use. These have the lowest volumetric efficiency. As we will discuss below it is one of the simple of the other two different varieties that is vane pumps and piston pumps. 

They can create enough pressure through the gear teeth that generates fluid flow around the gears and pressurize the outlet side. 

Gear pumps are at least modern than the traditional versions that are compatible with today’s high end-use in the industries. Generally, they are quieter during their operation as well. 

It reduces the ripples caused in the hydraulic fluid due to the exerted pressure with its helical gear teeth and the precise quality of tooth profiles.

Rotatory vane pumps

This is also based on the principle of a positive displacement pump. At Riverlake you can find vane pumps that have variable vane lengths to maintain contact with the walls as the pump rotates. This will help you to adjust to your style of use and find one according to your needs. 

In its design, one of the critical aspects is how the vanes are pushed to contact with the pump housing or how the vane tips are machined at this point. 

The forcing of the vane towards the pump housing is done using the spring-loaded vanes or vanes that are loaded hydrodynamically.

Screw pumps

Again another example of a fixed displacement pump contains two Archimedes screws with an intermesh that are enclosed in the same chamber. These pumps are known for their high fluid flow design even at low pressures. 

Previously they were used in board ships where a consistent hydraulic pressure was extended throughout the ship but it was also used for controlling the ball valves. 

Speaking of the efficiency this is not as high in the screw pumps but the noise levels are very low. 

There are various models of screw pumps that you can find at RiverLake Hydraulic that are of the following types-

Single-end pumps

Double-end pumps

Single rotor pumps

Multirotor pumps 

Best axis pumps

These have axial piston pumps and rotors and use the bent axis principle. Click here and you will find the two basic varieties of the bent axis pumps.   The Thoma principle pump which a maximum bent of 25 degrees and one that is based on the Wahlmark principle that has pistons of spherical shape in one piece and can be bent up to 40 degrees. 

If you consider all the models of hydraulic pumps then these would give you the most efficiency for its power input to the hydraulic energy that it produces. 

If you want to install efficient hydraulic systems then you need to check out the variants of the bent axis pumps which you can do so when you click here.

Inline axial piston pumps

The inline axial piston pumps have different compensating techniques and with the variable displacement pumps, you can consistently alter the fluid discharge per revolution based on system pressure requirements and the load requirements. 

These have maximum cut-off settings and horsepower control that do not require other inputs than electrical signals. 

These will be economical for you in the sense that they can save a lot of power input for you. It is one of the best hydraulic pumps that you will get at Riverlake if you are considering saving power more. 

Radial piston pumps

Last on the list of the hydraulic pumps are the radial piston pumps. These will work when the pistons are extended in a radial symmetrically direction around the drive shaft. You can click here if you want to check out some of the models of the radial piston pumps. 

Benefits of using hydraulic pumps 

In this section, we will come to know about the various benefits of using a Riverlake hydraulic pump. After knowing about the types of a hydraulic pumps this section will allow you to understand which model among the above will suit your industry and need the most. 

Energy efficiency

With the same amount of working efficiency, a hydraulic pump will use up much less power. Due to its energy-efficient models, they can have varied industrial uses. 

Runaway control

It is very unlikely that your hydraulic pump will run dry if unnoticed. It may happen in a pneumatic system pump. The speed and the flow control of a hydraulic pump are much easier to control and monitor as well.  

Reduction in maintenance costs

You don’t have to spend too much on maintaining your Riverlake hydraulic pumps anymore. These have a self-lubricating technique and these would rely entirely on compressed air 



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