Installation of valves
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This post was last edited by manman2000 on 2012-11-10 at 18:57. What are the advantages and disadvantages of using valves in vertical pipelines and horizontal pipelines? What types of media require valves to be installed on vertical pipelines, and what types of media require valves to be installed on horizontal pipelines?
Whether to install it horizontally or vertically depends on the piping arrangement; if the pipes are vertical, the valves must also be installed vertically, and naturally, if the pipes are horizontal, the valves will be installed horizontally as well.
The properties of the medium are related to the material of the valve body. Cast iron is used in low-temperature environments; cast steel can be used at high temperatures; stainless steel is resistant to corrosive media
The installation direction of the valve generally has nothing to do with the medium; the principle of safety is to ensure ease of operation, so as not to hinder operations during production； However, there are requirements for the installation of check valves: some are installed on horizontal pipelines, while others are installed on vertical pipelines – it depends on the model of the check valve!
For example: suppose it is a mixture of solids and gases being transported. Moreover, the temperature of the solid is high; if the valve is installed vertically, its body and valve disc will often wear out or experience internal leakage ； If a liquid containing solids is being transported and the temperature is high, installing the valve horizontally will cause the solid particles to settle inside the valve passage, making it very difficult to shut off the flow even if you try to do so.
The installation of valves is related to the type of valve
The placement of valves is very important and is determined based on the layout of the equipment. When arranging the equipment, it is necessary to take into account the state and properties of the medium. For example, the pipes that connect two devices should be as short as possible to prevent material from accumulating inside them or to avoid reactions. In such pipes, the placement of valves can only be determined based on the direction of the pipes; issues such as wear of the valve body or valve discs, or internal leaks, cannot be considered at this stage. It is up to the valve manufacturers to address these problems. Do you understand? If a liquid containing solids is being transported and the temperature is high, installing the valve horizontally will cause the solid particles to settle inside the valve passage, making it very difficult to shut off the flow even if you try to do so. The valve should be installed on the vertical pipe as much as possible. . .
Well said. The purpose of my post is to remind everyone that when installing valves, one must never overlook the condition and properties of the medium being transported. Thank you.