Is a gate valve or a globe valve better for the utility pipes connected to the oil loading/unloading pipelines?
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For the utility pipelines connected to the oil loading/unloading pipelines, are gate valves or globe valves better? Specifically, for steam pipelines, nitrogen pipelines, and instrument air pipelines
It’s of course a stop valve. Gate valves are characterized by low resistance and small installation dimensions; they do not change the direction of the fluid flow, but they are not suitable for regulating flow rates, as the valve core is prone to vibration and damage when in a partially open position. The characteristics of a globe valve are reliable sealing and the ability to regulate flow; its disadvantages are high pressure drop and a change in flow direction as the fluid passes through the valve core. Based on your usage, the utility systems for connecting the oil loading and unloading pipelines involve frequent flow adjustments, and changes in pressure drop and flow direction have virtually no impact on operation. So the conclusion must be: globe valve
Globe valves are good; they are also widely used in current production.
Excuse me, on the second floor: if a buffer tank is installed in the middle, can a gate valve be installed in front of the buffer tank?
Stop valve... high in, low out!
Of course, it depends on the purpose of this valve. If it’s used at the compressor outlet, I personally recommend a gate valve
It is recommended to use ball valves, as they offer better sealing performance. For steam at relatively high temperatures, gate valves can be used. For nitrogen and compressed air, ball valves are the preferred choice.
The choice of valve depends mainly on its intended use. If it is used only for opening or closing without regulating flow, a gate valve is generally used; if flow regulation is required, then a globe valve is needed.
Globe valves are preferable because they offer better sealing performance than stop valves; to prevent the backflow of oil, it is necessary to use globe valves with relatively better sealing properties!