May I ask industry experts where the check valve for the sulfuric acid pump outlet should be installed?
Thread Content
Are there clear requirements in design and standard specifications regarding the installation location of the check valve at the outlet of the sulfuric acid pump? In my opinion, it is the same as ordinary centrifugal pumps – namely, a pump inlet valve + the pump + an outlet check valve + an outlet valve. The advantage of this arrangement is that if the check valve corrodes, the sulfuric acid can be stopped by using the outlet valve, making replacement easier. However, acid tends to accumulate on the outlet check valve. Some colleagues said to use a pump + outlet valve + outlet check valve in this configuration. When maintaining pumps, no acid accumulates on the outlet check valve; however, if the check valve is corroded, it is not convenient to replace it online. Dear experts, could you provide a reasonable explanation?
Why design a one-way valve? We don’t use any check valves.
Many factories removed their check valves because they weren’t working properly.
It seems that a check valve isn’t necessary; generally, there is only one valve at the outlet of a sulfuric acid pump.