Hydraulic Valve

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What is a Hydraulic Valve?

It’s an essential mechanical apparatus that controls fluid flow by opening and closing the outlets to pathways accordingly. Valves help stabilize and increase powerful forces needed to get work done with excavators, backhoes, cranes, jacks, and other equipment.

What components make up Hydraulic Valves?

Hydraulic valves are composed of five standard components: the body, bonnet, actuator or cylinder, packaging, and internal valve elements known as trim.

What does a Hydraulic Valve do?

In a hydromechanical operation, it governs the flow of fluid correctly. It’s crucial for redirecting pressurized fluid or maintaining the flow level and functions by closing streamlines. In short, valves are components that harness the flow, pressure, and direction of a hydraulic system.

What happens if you have a faulty Hydraulic Valve?

Valves form part of a bigger picture, so specific tests and processes must take place to fault-find. If your hydraulic equipment suddenly starts acting up, have it inspected within 24 hours.

Whether it be sudden strange noises, abnormally high fluid temperatures, or noticeably slow operation, the cause needs investigating.

Rapidly attending to minor issues won’t cost you as much as procrastinating will. Correcting any concerns will avoid possible operation failures due to a lack of action or maintenance.

How do I choose a Hydraulic valve?

Always look at the purpose of the valve, as the job you require from it is a significant factor. Take into account the flow and pressure extremity of the whole hydraulic system to determine the size of the valve needed for the project.

How can I increase the lifespan of a hydraulic valve?

Regular upkeep of the entire hydraulic system will help the valves last longer. Check seals for leakage and run pressure tests with gauges. Also, make sure the pressure medium remains free of foreign bodies, as dirt in the fluid is where trouble often begins.

What are the main types of Hydraulic Valves?

There are numerous styles available, and all of them fall into one of the three main category types. We will detail these three, being directional, flow, and pressure control valves.

Directional Control Valves

This piece aims to either start the flow, stop it, or change the direction in which the pressure medium flows. Examples of the styles this component comes in are:

Shuttle
Spool
Poppet
Check and non-return

Flow Control Valves

These valves play a part in the transfer rate of energy by flow timing. This timing is managed by decreasing or increasing the space at the throttle point.

You’ll find them in the following designs:

Gate
Needle
Globe
Diaphragm
Pinch

Pressure Control Valves

This element is essential for balancing pressure in the system below a max cutoff point. Some of the styles in this group are:

Sequence
Counterbalance
Constant pressure reducing
Unloading