I have 2 headers, supply and return, from which I take and return cooling water.
You have guessed my doubts.
I usually take water of header from above, to avoid pulling impurities from header ( just as you said), but also have to put vent on this section for
hydrotest.
I was thinking to take...
Thanks for quick answer.
What bothers me further, regarding place of isolating valve.
Usually we have no heat tracing on CCW ( branching pipes from MCW header)and if we put an isolating valve close to user (heat exchanger e.g.),
and when this part of cooling circuit is out of operation, we have...
If anybody can direct me or explain rules, or advantages and disadvantages for branching pipes from MCW header. The problem is related to cooling water header on the piperack with many taking and returning branches( closed coolimg water systems). Take water from above part of header or bottom...
