Did you see that many drain valves in a process use butterfly valves? I’m a bit surprised – can butterfly valves really achieve such good sealing?
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Did you see that many drain valves in a process use butterfly valves? I’m a bit surprised – can butterfly valves really achieve such good sealing? Am I falling behind? Don’t butterfly valves necessarily have some level of leakage?
Butterfly valves are generally used in large-diameter pipes; they are not typically used in small-diameter pipes such as those for drainage. Take a look at the image on the home page – isn’t the way the valve is drawn in that image different from the conventional drawing style?
It’s a butterfly valve; it contains some solids with large particle sizes in an acidic aqueous solution
To prevent the valve from getting clogged, using a ball valve or gate valve would also work, right? I’m not very skilled with butterfly valves, and I don’t understand why either :D
I really don’t understand it either – it’s a friend’s PID; can a butterfly valve really achieve such good sealing? As far as I remember, butterfly valves always allow a certain amount of leakage; they are used in various branches of heat exchangers and similar systems
I heard from an experienced veteran that very high-end butterfly valves can achieve excellent sealing performance, but their price is quite high.
For the drain pipe, it’s probably DN20 or DN25, right?
Guiding drainage serves basically two purposes: one is for discharge, such as discharging liquid at lower levels, venting gas at higher levels, and venting at the end of pipelines； The second is used for interfaces of temporary pipelines, such as connecting the system to N2, air, steam, process water, etc. Generally, gate valves do not require throttling, which is why they are widely used; however, globe valves are also used in some cases. Drain valves are designed for draining liquid, and they might be employed for materials containing large particles of impurities