Haputanlas
Well-Known Member
At 2gpm do you really have to restrict it?
For my plate chiller? Yes.
However, so far the input restriction seems to work fine. Just a thought to discuss though.
At 2gpm do you really have to restrict it?
I too am using the ball valve before the input of the pump to restrict my flow. However, I wonder if it wouldn't be better to restrict the output so as to not mess with the pump's prime.
I don't actually have an answer to that, but I'm sure someone else could chime in on it.
emjay said:The biggest issue with running it with restriction on the input is not that you'll lose prime. It's because more restriction is needed on the output side to let liquid "back up" into the pump, ensuring it's fully filled. More restriction on the input tends to make them run partially dry on the inside, possibly causing cavitation as well as almost definitely damaging the pump.
JerseyJoe said:You want to restrict the output side. Never restrict the inflow side. Otherwise you will get cavitations. Also the output port should be higher than the input for all pumps that are not self priming.
emjay said:The biggest issue with running it with restriction on the input is not that you'll lose prime. It's because more restriction is needed on the output side to let liquid "back up" into the pump, ensuring it's fully filled. More restriction on the input tends to make them run partially dry on the inside, possibly causing cavitation as well as almost definitely damaging the pump.
Haputanlas said:Out of curiosity, what would damage the pump? Is it the fact that it could run dry for too long?
Brulosopher said:I received mine last week and realized I don't need it with my new setup... bought it on a whim way back (preordered in April). Make me an offer!!
I received mine last week and realized I don't need it with my new setup... bought it on a whim way back (preordered in April). Make me an offer!!
Airplanedoc said:Anybody used the new stainless, food grade coated pump? If so are you happy with it? Looking for a pump to recirculate in my ebiab setup..
mattcrecelius said:Anyone else having this problem?
For those of you that are machinists, am I going to be okay if I just force the NPT thread onto the BSP thread?
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