TC HERMS Flow

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Dave16

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Hi guys,

I am currently planning/building my first electric 20g system.
I want to make it 100% welded/TC.
Bobby, I see you cringing already!

The only concern I have is about the HERMS coil in HLT.
Outer/Inner ferrule would be 1.5 inches but then the coil diameter is 0.35 inches.
Would it restrict the flow too much? My Fluid Mechs class was so long ago.
See pictures below (not mine, but good reference)

Thanks,

Capture.PNG
herms.PNG
draw.png
 

Bobby_M

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No it has no effect. I mean the coil will slow flow but it runs fast enough to do the job and its faster than the tun should flow anyway.
 
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