@LittleInch
As moltenmetal said, I have limited option when user state pump specification. This is my first time to use centrifugal volute pump for pressure boosting instead of using vertical/horizontal multistage one. As per my calculation, with same discharge head it only need 7.5 kW of...
@1gibson
Thank you. Unfortunately I don't know how to calculate the heat that will come up.
If performance curve said that the efficiency drop to 25% then can we assume that 75% of 15kW will goes to heat?
I think there is a lot of homework for me to get along with this project... >.<...
Sorry, somehow the attachment does not show up. Here I re-attach it.http://files.engineering.com/getfile.aspx?folder=90e2c1b7-89fa-4c7d-81e0-31070597b91b&file=65-50-15kW-3000RPM_performance_curve.pdf
@moltenmetal
Thank you. As per your explanation, it seems back-pressure regulator is the best solution since you are right, this pump is being use as pressure source rather than the flow. The suction of this pump will receive direct tap in point from existing 2.5" pipe, this pump will have role...
@LittleInch
Thanks for your suggestion. First I will try to find ARV first, if I have difficulties to get it then I will go to flow control programming thing.
About orifice sizing, do you have any link where I can learn how to do it?
Regards,
Zab
@LittleInch
Thanks. Your explanation is very helpful.
I just knew about ARV, initially I thought that Safety Relief Valve will do the job even I have doubt that the spring will not last for long time. I will try to find ARV sellers in my country.
Regarding to put the excess flow to the...
Dear Seniors,
I am new to pump installation work and this time I face situation that it seems I have to put recirculation line from discharge to suction line of the pump.
I will use centrifugal volute pump, with flow of 265 LPM at 7.7 Bar (BEP), 2.5" suction and 2" discharge port. The media is...
