The main difference between gate valve and globe valve, purpose of use and design features in their internal structure. Gate valves are designed to completely open or close the flow of liquid or gas. Thanks to the slide mechanism inside, the fluid is either released or completely cut off. Due to this structure, gate valves, is generally suitable for on-off operations and operates with low pressure loss. It creates almost no resistance on the flow line, which is a great advantage in terms of energy efficiency. <\/p> \n \n
Globe valves are mostly used to control the amount of flow. The disk and seat system in its internal structure limits the passage by changing the direction of the flow and thus precise flow rate adjustment can be made. However, this structure creates more resistance to flow and therefore the pressure loss is higher than with gate valves. For this reason, globe valves are preferred in laboratory systems, heating-cooling circuits and process lines where flow control is important, while gate valves are mostly used in lines with on-off applications such as infrastructure, energy and fire systems. <\/p> \n \n
The most obvious difference between gate valves and globe valves is the mechanism in their internal structure. Gate valves have a slide that cuts the pipeline perpendicularly. This slide moves up and down, completely releasing or completely stopping the flow. When the valve is fully open, the slide is completely pulled out of the way of the fluid and provides a straight passage line. Thanks to this structure, minimum flow resistance occurs in gate valves and the pressure loss in the system remains at a very low level. The gate mechanism offers a long life and low maintenance solution with its simple and robust structure. <\/p> \n \n
Globe valves have a more complex internal structure. In these valves, there is a disk on the path of the fluid and a seat on which this disk sits. The flow starts when the disk goes up and stops when it goes down. However, as the flow changes direction inside the valve body, a resistance is naturally created. While this structure allows precise control of the flow, it causes higher pressure loss. In other words, while the globe valve provides control capability, it can create more consumption in terms of energy. <\/p> \n \n
Gate valves are designed for on-off operations and are therefore recommended to operate only in the fully open or fully closed position. Thanks to the gate mechanism, when the valve is fully opened, the fluid passes in a straight line without any obstruction. This minimizes pressure loss and is particularly advantageous in systems where large volumes of fluid need to pass quickly. However, when gate valves are used in the half-open position, turbulence at the edges of the gate can cause wear and leakage. Therefore, they do not offer an ideal solution in systems where flow control is required. <\/p> \n \n
Globe valves are developed for proportional control. The disk in its internal structure moves on the valve seat and gradually adjusts the fluid passage area. This makes precise flow control possible. Globe valves are preferred when it is necessary to control the flow rate, pressure or flow direction within the system. Globe valves are indispensable especially in continuously adjusted lines such as process control lines, heating and cooling systems. However, this precise control feature comes with the disadvantage of high pressure loss. <\/p> \n \n
Gate valves are mostly used in systems where the fluid only needs to be opened or completely closed. They are preferred in applications with high flow rates and low control requirements such as water supply systems, sewage infrastructures, fire extinguishing lines, oil and natural gas transmission pipes and power plants. In these areas, the gate valve’s low pressure loss, compatibility with large diameter pipes and long life structure offer significant advantages. In addition, the fact that it requires less maintenance makes it an economical and practical solution, especially in infrastructure projects. <\/p> \n \n
Globe valves stand out in lines where the flow needs to be precisely controlled. Chemical plants, laboratory systems, central heating-cooling systems and process control applications are areas where globe valves are frequently used. In these systems, flow rate adjustment and pressure regulation must be precise, and the disc-slot structure of the globe valve offers a great advantage in providing this control. In lines that require frequent on-off or continuous flow adjustment, the globe valve offers a much more effective solution compared to the gate valve. <\/p> \n \n
Gate valves offer almost no resistance to the fluid thanks to the straight passage line in their internal structure. When the valve is fully open, the fluid moves along a straight line and pressure loss is minimized. This feature provides a great advantage in terms of energy efficiency, especially in pipelines with high flow rates and long distances. Thanks to the free passage of the flow, less pump power is used, which reduces the overall energy consumption of the system. <\/p> \n \n
Globe valves, on the other hand, apply a significant resistance to the flow because they work by structurally changing the direction of flow. The movement of the disk over the valve seat and the flow through a narrow channel causes a pressure drop. This requires more energy to move the fluid forward. But this resistance also makes precise flow control possible. In other words, the globe valve offers control capability even though it consumes more energy. For this reason, when designing the system, the choice of valve should be made by answering the question of whether energy efficiency or precise flow control is a priority. <\/p> \n \n
Gate valves are long-lasting and low-maintenance valves due to their simple internal structure and few moving parts. The gate mechanism only opens and closes, which reduces the possibility of friction and wear. Especially in systems with few opening and closing operations, gate valves can operate smoothly for years. In addition, when preferred in large diameter lines, they are resistant to deformation even under high pressure thanks to the robustness of the body structure. <\/p> \n \n
Globe valves, on the other hand, have more moving parts and dynamic internal structure due to continuous flow adjustment. Over time, this can increase maintenance needs such as wear and tear, gasket wear or sealing problems. Regular maintenance is important to maintain the performance of the globe valve, especially in lines that are frequently opened and closed. However, with the selection of quality materials and correct installation, globe valves can also be used efficiently for a long time. Nevertheless, in terms of maintenance planning, globe valves should be checked more frequently according to the frequency of use and ambient conditions. <\/p> \n \n
Whether a gate valve or a globe valve should be preferred depends entirely on the needs and intended use of the system. If the system only needs to open or completely stop the flow and there is no need for precise flow rate adjustment, the gate valve is the most suitable choice. These valves offer great advantages in terms of low pressure loss, energy efficiency and durability. In addition, since they contain fewer moving parts, the need for maintenance is also minimal. These features make them ideal for infrastructure systems, water networks and industrial lines with high flow rates. <\/p> \n \n
On the other hand, if the flow rate needs to be controlled continuously, requiring precise settings and frequent opening and closing operations, a globe valve is a better choice. Globe valves are used in many sensitive applications, from heating and cooling systems to chemical process lines, thanks to their proportional control capabilities. However, these advantages come with some disadvantages such as higher pressure loss and the need for more maintenance. As a result, the technical requirements, energy efficiency targets and operational needs of the system as a whole should be considered when selecting a valve. <\/p> \n","protected":false},"excerpt":{"rendered":"
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