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What is a hydraulic distribution system?

When you have a hydraulic distribution system, it can be useful to know the ins and outs of each of its components. Individual knowledge of each part may be necessary in the event of repairs. And, equally, knowledge of each of the links in the system helps to understand how the whole works. Here, we're going to look at theuse of a hydraulic coupling

First of all, it's worth remembering that a hydraulic circuit is made up of several components:

  • A pump that generates the flow.
  • A hydraulic distribution system with a control system.
  • An actuator. Actuators may be sequence valves or mechanical or electrical control distributors.
  • A protection device to ensure that the pressure in the system is manageable.
  • Filters to prevent pollution of the circulating fluids.

Among these components, we are going to look at the hydraulic distribution system. This is where we will find our hydraulic coupler.

These systems use non-compressible fluids. By this we mean a mineral oil whose quality is to allow rapid transmission of energy from the pump to the receivers. The direction of flow depends on the action to be achieved.

They are described as incompressible fluids, as opposed to the so-called compressible fluids used in pneumatic systems. The characteristic feature of this mineral oil is its very high viscosity, making it resistant to water and serving as an ideal conductor. Basically, they are conductors of force.

This force is the energy that the distribution channels from point A to point B, as its name suggests.

What is a hydraulic coupling?

Now that we have recalled the overall context of the hydraulic coupling, let's look at how it works and what its role is.

In the distribution system, hydraulic couplers are fitted to crimped hoses responsible for connecting hydraulic installations to other equipment. They are therefore the central link in the energy transmission chain. There are two types:

  • Valve type.
  • Poppet valve push full.

They are used to transfer energy. The challenge is to do this in such a way as to avoid excessive loss, which would reduce the efficiency of the whole system. The coupler must therefore be perfectly watertight and be able to connect and disconnect the two systems quickly so as not to generate any losses. Or at least limit them.

In addition to sealing, their role is also to prevent dripping. This is a highly damaging source of pollution because of the oils used to transmit the energy. The very high density and chemical make-up of these oils could be very harmful to human health and the environment, and the coupling is there to prevent these leaks.

As you can see, the purpose of the coupling, as a junction piece, is to connect and enable transmission without loss of any kind.

Couplings logically operate on the male-female principle and come in two categories:

  • The screw system.
  • The ball lock system.

To complete this summary, couplings can be summarised as systems for rapidly connecting and disconnecting hydraulic distribution to a hydraulic line. A transmission factor.

See you soon for new instructions!

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