Aluminum nut for HLT element - part#?
#1
Posted 17 April 2010 - 05:30 AM
#2
Posted 17 April 2010 - 06:20 AM
I think this is the pn at McMaster: 44705K416mikeOK Stangbat & others, I know you guys have switched to aluminum nuts for your HLT elements to avoid rust. What's the part# for those? I know this info used to be on the green board, but since it went tits-up I think all of that info was lost. My elements have been rusting for a long time, and I checked them last night before filling the HLT and it was borderline disgusting. I don't want to replace them every 6 months, so it's time to give the Al nuts a try.Thanks in advance,Pete
#3
Posted 17 April 2010 - 07:10 AM
Yes, that's it. I've only used my setup once since switching to an aluminum locknut. From my understanding, the protection of a sacrificial anode only works when there is a conductive path from the anode (locknut) to the cathode (element), which would be the direct contact, and an ion path (the water). So if the HLT is empty but there are water drops on the chromed end, there is a possibility it could still rust. So I make sure I dry mine off when I'm done, even with the aluminum locknut.I think this is the pn at McMaster: 44705K416mike
#4
Posted 17 April 2010 - 07:58 AM
#5
Posted 17 April 2010 - 08:22 AM
#6
Posted 17 April 2010 - 09:29 AM
#7
Posted 17 April 2010 - 11:08 AM
On mine, it doesn't come from the element itself, it comes from the threaded part that is chromed (where the element attaches). Seems like this portion eventually rusted when I used a brass locknut. I'm hoping the aluminum one helps prevent this from happening. Of course I seem to dry fire my HLT element often enough that I have to replace it before it can rust too much. Sometimes being a dumbass has its advantages.I think my HLT element is Cr on Cu and my kettle is inco. Where is the rust comming from?
#8
Posted 18 April 2010 - 08:04 AM
Gotcha, I'm going to check mine; the threads are mostly hidden because my nut is really half a coupling and so pretty thick.On mine, it doesn't come from the element itself, it comes from the threaded part that is chromed (where the element attaches). Seems like this portion eventually rusted when I used a brass locknut. I'm hoping the aluminum one helps prevent this from happening. Of course I seem to dry fire my HLT element often enough that I have to replace it before it can rust too much. Sometimes being a dumbass has its advantages.
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