Picking the correct type of valve is especially important in industrial applications, to guarantee that a certain application will operate smoothly, safely, and reliably. Wedge and wedge-gate valves — Válvulas de compuerta y válvulas de globo are two types of industrial valves that are in great demand in the current world market because of the special utilities and advantages that they possess. This article would go further and explain in a finer manner the differences between the two types of valvulas industriales, especially on which type will be more appropriate in certain industries.
Gate Valves
Globe valves or vávulas de llave, have a round body design and a plug in and screw in design of a flat disk of metal which moves perpendicular to the fluid flow. This design enables the gate valve to open up with relatively minimal pressure drop as required in most high pressure applications. Used mostly in large pipelines, gate valves are best used in isolation rather than in control of flow rate. Due to their capability to eliminate flow resistance, gate valves are usually selected for substances which are sticky or contain solids that might deposit themselves and or pose some form of challenge to other more complex valve types.
Moreover, gate valves offer very good sealing in its closed position which is desirable in applications that demand a strict shut-off. They are also less elaborate in structure which gives them, in most cases, lower costs compared to other valve types hence suitable for use in applications where many valves will be needed such as in large infrastructure projects.
Benefits
Globe valve possesses a spherical body shape and its closure disc acts in parallel to the flow of the fluid. While gate valves are not suitable for throttling and control, globe valves are very much suitable for alteration of flow rates, thus suitable for use in systems that require frequent change in their rates of flow. Their design enables the user to accurately control the flow rate thereof and they are also capable of the immediate shutting off the flow, making it possible for the systems to utilize the same in a manner in which there are moments of both the need for the regulation of flow as well as moments where there is a need for a section of the system to be isolated.
Normally, globe valves are stronger in design than other valves such as gate valves due to the fact that they have elaborate internal components which enable them to withstand higher pressure differences across the valve. This makes globe valves particularly useful where the control of flow is important in steam and other high pressure applications. In addition, the globe valve design reduces seat wear common in valves that cater to abrasive or corrosive fluid thus leading to increased longevity of the value.
Comparing Performance and Suitability
Any decision in choosing between válvulas de compuerta and válvulas de globo has to be accompanied by their utilization needs. Gate valves are mainly applied where the valve will not be shut off and opened frequently but kept fully open most of the time or fully closed most of the time. Their construction is not suitable for frequent use or flow control, as the longitudinal movement of the gate disc creates wear and tear which will ultimately result in failure especially when used in the wrong application in throttling.
On the other hand, the globe valve is designed in a way that is capable of enduring constant opening and closing as well as regular adjustment to the rate of flow. These internal features are designed to enable opening and closing of flow paths in a gentle manner reducing the impacts of the fluid hammer and system shocks in the system. This capability is especially advantageous in such systems that include systems that take time to change flow conditions or where the control of the fluid flow rate has to be very precise.
Maintenance and Operational Considerations
In as much as maintenance is concerned, gate valves are actually quite simple in design, and this makes it hard for problems to arise when repairs are being made. However, they foul up periodically and experience corrosion in the long run particularly in the systems that either deal with particulate materials or corrosive liquids. It is very important that maintenance activities be done from time to time so as to ensure that gate valves are functioning as they should.
But, due to Globe valve’s internal structure, it might require longer and more sophisticated checks when it comes to maintenance checks. Some of their parts like the stem and the disc are subjected to wear as a result of frequent change in the flow. Nonetheless, current designs of globe valves do not always require disconnection of the valve from the system in order to access inside the valve for cleaning or replacement; this is convenient during operations.
Valve Selection
In choosing between a gate valve and a globe valve there is often some variance depending on the demand of the application. For instance, for operations that require a valve that is either fully open or closed, then the gate valve is best suited to this application. Due to simple mechanisms and efficient sealing functions this tool is ideal for use in various industries.
In systems where there is need for measurement of the flow of fluids or frequent cycling of the valve, one has to go for a globe valve. Due to features of making a number of close adjustments and responding sensitively to changes in the conditions of a system, it is used often in dynamic or critical processes.
Thus, the gate valves (Válvulas de compuerta) as well the globe valves (Válvulas de globo) are designed and used for various specific industrial uses. The knowledge of how your system will function and will require maintenance will be useful in determining which of the available valvulas industriales will be most suitable for improvement of safety, efficiency and reliability.
