What is the purpose of adding a check valve to the inlet of the storage tank? Talk by looking at pictures
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materials: The two nozzles of heavy oil are both feed ports, and the root valves are both check valves, right? What's the purpose of this? At least it doesn't violate the rules, right?
Without a check valve, the pump will stop and the flow will flow backwards.
There is no check valve for bottom feeding. Do you think the material will flow back?
Is the material from the check valve always sent out to prevent backflow due to high pressure at the back? The other one is like a stop valve, which can control the feeding
Similar to the double valve, there is a check valve at the pump outlet. Even if the pump is stopped, there will be no reverse flow and impact on the pump.
A check valve should be added to the bottom feed, otherwise it will flow back when the pump is stopped.
You are right. Where the outlet back pressure of the pump is relatively large, check valves will be installed. This is one of them.； Second, this kind of storage tank is not just one, there may be other storage tanks connected in parallel. Without check valves, it is easy to cause reverse flow between storage tanks.
A check valve should be added to the bottom feed, otherwise it will flow back when the pump is stopped.
Generally, there is a check valve at the inlet of the pump!
Why does the large diameter pipe look like a filter? The thin pipe must be a one-way check valve (leading from right to left into the tank). It's obvious at first glance: The thick pipe is the pump inlet line, and the thin pipe is the pump outlet return flow directly into the tank line.