Heavy-duty valves should be installed horizontally; why is the valve stem oriented upward?
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Easy to use for support? Easy for lifting and maintenance?
Yes, it facilitates support, makes lifting and maintenance easier, and also simplifies operations such as opening and closing. It is usually a gate valve, and the valve core has a considerable weight.
But I saw several water pipe valves with a diameter of over 1 meter installed on vertical pipes
Word game: Yi = to recommend or suggest; there’s nothing that can be done if the person doesn’t listen； Must = mandatory; it’s impossible to ignore. Also, since you’re over 1 meter tall, does that count as a heavy-duty valve? ;P
Installed on a vertical pipe, there is another issue: due to the effect of gravity, the sealing surface on the lower side experiences friction from continuous movement over time, which leads to wear and internal leakage