falcon03,
you need to provide more information.When you say you have 3 absorbers, are they in series or what? you also need to let us know your specs to enable better understanding.Can you isolate 3rd absorber, without affecting your process? sorry, if the questions are naive, but, nonetheless..
sboo,
saxon has outlined the reason why check valves/NRv's are upstream of the discharge valve. If thermal expansion is a cause of concern - will depend on the fluid, a bypass around the check valve will help during the situation when the discharge block valve is closed.Whenever the discharge...