Directional Control Valves

Much Ado About Directional Control Valves And Its Functions

Directional Control Valves

Without the help of DCV hydraulic directional control valves, it is impossible to get the hydraulic system getting functional. The DCV is what makes it operable. It is with the assistance of the DCV that the two considerably significant portions of the cylinder get charged because the DCV has the strength to authorize and resist the pressure that is needed to help move the piston as the pressure entering the piston assists in establishing an equilibrium in the flowing of the power that lets the user manipulate it according to their desire. 

How Does The Directional Control Valve Hydraulic Work? 

The directional control valve is one of the most crucial elements in the hydraulic cylinders. DCV helps in authorizing the flowing of the liquid to various places which however relies on the sources.  depending on the sources of the pressure from which it has been launched, it could be said that the source could be one or more. Directional control valve Rexroth is positioned inside the cylinder. 

This DCV is put to labor either electrically or mechanically. The decision of either to permit or prohibit the progression of the fluid relies on the DCV which is accumulated with the functionality of the piston. How much fluid is released is the factor that decides how much pressure will be applied by the piston.

Now it depends on the person who is applying the pressure as it could vary differently because their personal need may require a stimulant amount of pressure to be applied. One could have used more pressure, wherein someone else could have the need for a totally different amount of pressure. This is why one needs a hydraulic accumulator. 

This accumulator is the part that wields power. This part of the hydraulic piston improves the efficiency meanwhile furnishing towards creating a smoother, credible procedure to carry out any task. A piston is a depository appliance that carries the power electrically. The piston is set to operate with the help of the hydraulic force. This particular accumulator, which could have two types, vane or piston accumulator, shoves the piston up and down. 

This creates a tension In the hydraulic system that is provided by the  Hydraulic Pumping Unit. The pump and the piston are brought together with functionality with the help of the accumulator and the DCV. Both of the elements continue to work as the accumulator, with the help of the DCV and the fluid exerts pressure so that it can create a balanced projection of power that can be utilized to one’s will. 

The more pressure that is appointed in the piston with the help of the DCV and accumulator, the more weight it can uplift. 

The DCV is the crucial figure of this particular system as the flowing of the liquid relies solely on the functionality of the DCV. This is how the directional control valve functions. 

What Are The Classifications Of Directional Control Valves: 

There are a few types of directional control valves. Each valve has a different function that is made to serve the various purposes of the users. 

  • Check valve: This particular DCV helps in allowing the fluid to flow only in one direction. In order to function this valve, one only needs to create a small amount of pressure that will be let through the inlet system of the valve. Because this valve is one-directional, the flow from the different directions is blocked as the valve shuts down by pressing the ball in the valve. 
  • Shuttle valve: This is a two-directional valve which means fluid can be allowed to flow in both directions. If there is an increase in pressure on either side, the pressure travels down to the other side to balance it out. It has two pumps to maintain the balance and the flowing of the fluid to manipulate the pressure created in the valve. If one pump fails, other pumps will be there to manage the failure. 
  • Spool type valves: The Spool-type valves are generally utilized as they can be disseminated to two, three, or more ways with which the fluid can be sent to various locations using various inlet and outlet ports assortments. This various combination is used for steering as it controls the actuators. The valve has its own functionality as it maintains retraction, neutrality. However, it is differentiated between three other types too. 
    • Two-way valves: it has two positions and two switches. Yes and no switches. There are different types of actuators at work too. They are solenoid actuators, hydraulic actuators, etc. 
    • Three-way valves: like the name suggests, it has three nodes. It has two actuator plugs which maintain the flow of the fluid. One node opens to let the fluid in meanwhile the other closes to maintain the balance. 
    • Four-way valves: it has three positions that are used to function the actuators that help control the flow of the fluid. It is generally used in cylinders and fluid motors. 

What Are The Common Things That You Need To Consider While Buying The Directional Control Valve Yuken? 

The element is very important in the hydraulic cylinder and that is why there are various things that you have to consider to make sure that you have bought the right thing. 

  • The limit of the Dynamic Power
  • The limit of the Static Power
  • The amount of Resistance To Flow
  • The time of the Switching 
  • Leakage

All these points have to be taken into consideration to make sure that you get a performance that is suitable for your needs. If one maintains or checks for each of the points mentioned above then it will become easier to extract as much usage out of the valve as one can. All these points are important factors that can make or break the functionality of the valve. In order to maintain the maximum level of sustainability and the efficiency of the valve, it is important to get these facts checked. 


The two major factors that you need to keep in mind for selecting a directional-control valve are the number of fluid ports it has and the quantity of the directional states, or positions that the valve can achieve.
The purpose of the directional control valve lies in the fact that it has the power to either restrict or allow the flow of the fluid that creates pressure. Depending on the types of the directional control valve used, the functionality will change however the goal is the same, which manipulates the exertion of pressure.
1. Pneumatically-actuated globe valves 2. Diaphragm valves 3. Quarter-turn types such as the modified version of ball and butterfly valves.


The importance of DCV lies in its functions. It enables the flow of the fluid in the piston to maintain the balance. Without it, there will not be a balance in circulating the pressure so that the user can use it to its maximum potential. DCV controls the flow of the fluid in the piston to manipulate the creation of pressure in the hydraulic cylinder to make the functionality more efficient and smooth. 

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