Can the valve stem be installed vertically downward?
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Can the valve stem be installed vertically downward?
The valve stem is installed downward, and during use, dirt and impurities accumulate, which reduces the valve’s ability to open and close properly. It is also inconvenient for humans to operate, as it can easily cause head injuries. Leakage increases due to pressure and gravity. Once it leaks outward, manually operating the valve handle or handwheel can easily cause injury by coming into direct contact with the eyes. It causes safety accidents. Additionally, the difficulty of maintenance increases. If installation is only possible downward, measures such as operation, maintenance, leakage prevention, and safety should be considered.
Agree with the person above; it’s inconvenient to use and poses safety risks. If space is an issue, it’s not completely impossible to use it anyway
Under normal circumstances, this won’t happen. If pipe conflicts arise and it’s unavoidable, then this is the only way to proceed with the installation
Agree with the view of Building 2#. Furthermore, if the pipeline transports liquid materials or gases that are heavier than air, and if the valve stem is installed downward, any leakage in the seal of the stem during operation can pose a serious safety risk to those who have to work with their heads tilted upward.
I’ve never seen them installed upside down; it’s generally not recommended. If there are hazards upstairs, the valves may not close properly, which can lead to accidents, especially with globe valves and gate valves.