Thanks for the info, moltenmetal. I have a DP type flow transmitter and I have checked with the manufacturer about the distance required to put the needle valve upstream of the FT. (around 20")
As for the laminar/turbulent flow, I should check it out. I think the flow is turbulant where I am...
Hi all,
I need to size a needle valve that is placed before a flow transmitter on the lube oil inlet line to a bearing.
I know the amount of the flow thru this line (1.9 gpm) and also the model I need to choose from is Parker N series. The oil specific gravity is 0.85.
my line size is 3/4"...
Bill, thanks for the info. This is a repeat job so I should use the VFD. Your comment regarding the start is interesting to me. Where could I find more info on starts and their differences with Drives.
Thanks
Greetings,
I am a mechanical engineer with limited knowledge of electrical equipment. I need to know what is a drive that should be used with the motor I am getting on a pump. I have never seen a drive! What does it do?
Thanks.
