External downstream pressure switch
External downstream pressure switch
(OP)
Dear Sirs
for several gear pumps, on process data sheet is present the indication of an external downstream pressure switch...and for those pumps is not present the indication for internal relief set..
i think internal relief valve should be provided and its set pressure too, regardless external downstream pressure switch..
what do you think about?
for several gear pumps, on process data sheet is present the indication of an external downstream pressure switch...and for those pumps is not present the indication for internal relief set..
i think internal relief valve should be provided and its set pressure too, regardless external downstream pressure switch..
what do you think about?





RE: External downstream pressure switch
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: External downstream pressure switch
RE: External downstream pressure switch
Still seems a bit like a false economoy to me and if some pumps have them and others not, there is always a danger that in the future one without internal PRV could be swapped for another with it on the same plant without anyone realising.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: External downstream pressure switch
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: External downstream pressure switch
By IMO, are you referring to the Colfax IMO pump? I can't quite follow your sentences if so...
Best to you,
Goober Dave
Haven't see the forum policies? Do so now: Forum Policies
RE: External downstream pressure switch
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way