Dear Professional,
Regarding to the subject, I would like to ask if there is any standards specify the needs of provision the minimum flow line located before the check valve at the discharge line? The reason being during start-up, operation may pinch the discharge valve and potentially the flow may be lower than minimum flow and results in pump damage. To avoid that, we are thinking to locate the minimum flow before the discharge check valve however we are not convinced without basis from standard. Hopefully any experts could enlighten me.
thanks.