How to Choose and Differentiate a Sectional from Monoblock Valve

The majority of the hydraulic systems needs to have directional control valve. With numerous different styles and installation setups, it is hard to have a good understanding which valve type is the most suitable for your system. Having the right knowledge about the features any company would need and how it is operated and controlled is the first step in the success of this process. The sectional valves are the most flexible and can be configured valve type. But the monoblock one offers several additional benefits when it is properly applied in the system. 

Compared to monoblock valve, the sectional valves has several benefits to being able to have an additional section or having it removed whenever it is needed. The ability to stock individual sections of it and establish an array of different valves setups makes it more cost efficient in stocking it and have versatility in the production. This can also make the servicing and maintenance of these valves much easier compared before because engineers can easily remove and replace a section in the system. This can be quickly backed up and have it moving and running. 

With this in mind, several sectional vavles are built in order to cover a wider range of higher pressure that flows through in several monoblock valves that cannot be handled. The sectional valve can have this functionality work in the place of a monoblock setup because they have some bad qualities to be considered. In each different section that is being added to the valve, there are potential leaking points that should be observed as well. With this in mind, there are several and different serviceable parts that when serviced, the tie rods that hold these valves together cannot be torqued correctly. The output would be leaking or spools that are not properly shifted. 

The monoblock valves are usually more cost-efficient compared to its sectional valve counterpart. This makes it more attractive as a choice in most systems in different companies. Also, they are lightweight and they are comparably more compact than a sectional valve. It is often overlooked as a benefit of monoblock valves. Because they do not have several sectional leak points. This can lead to many service and installation problems that might occur. 

With this in mind, the monoblock valves also comes with its own disadvantages and challenges. The entire valve can be placed in one casting and when there is a need for it to be serviced the engineer or technician should remove the whole valve. If there is an occurrence such as major problem within the section of this valve, the whole of it should be scrapped. This will lead to a more costy replacement rather than just removing a section in the valve. However, the majority of the monoblocks are used for lower to medium flows that can handle just enough pressure. Which in return helps companies to keep cost, weight, and size down. But they will only have limited application they can be used for.