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What is the difference between upward/downward opening discharge valves and inward/outward opening discharge valves?

2018-09-25View Original

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Can it be understood in this way that an upward-opening valve is equivalent to an outward-opening valve? Help needed
Reply #22018-09-25
This post was last edited by ylb913 on 2018-9-25 20:08. I understand that extending downward is the same as extending outward, and extending upward is the same as extending inward. This valve is usually located at the bottom of the equipment; the valve’s handwheel is situated at the lower part of it. When the valve core moves downward, it opens, which can also be understood as an outward movement.
Reply #32020-03-30
When to use the upward expansion style and when to use the downward expansion style
Reply #42022-04-02
The manufacturer information available online is almost all identical; everyone copies from each other, and even the spelling mistakes are the same. How is it possible to produce good products with such an attitude? ? My understanding is that in the outward-opening type (upward-opening type), the valve plate protrudes upward when the valve is opened to allow fluid to pass through; the valve plate may extend into the reaction vessel, and if the vessel is being stirred at that time, it could collide with the stirrer. The inward-opening type is the opposite: the valve plate moves downward when opened, so it doesn’t come into contact with the stirrer, and this also requires less effort

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