I've been looking at firewall passthroughs for electrical wiring, and decided I needed something like
https://www.aircraftspruce.com/catalog/elpages/firewall_penetration_kit1in.php
Unfortunately, these are very expensive, especially when converted to Australian currency and shipped half way around the world.
I don't have access to welding equipment to make something similar. However, I did find a similar-looking 304 stainless flanged pipe on eBay, at about 1/20th the ACS price.
https://www.ebay.com.au/itm/3750710...ar=644142360188&widget_ver=artemis&media=COPY
I bought a set of five of the 25mm ID x 39mm long version. Received them, sectioned one to look at the joint. Smoothed one half, pulled the other half apart with a fair amount of force required. The weld has good penetration, but only goes about half depth. Images from various positions are attached.
I think it's probably usable to form a passthrough, but I'd like to hear from anyone who knows more about it than I do whether this is a good idea or not.
Thanks for your help.
https://www.aircraftspruce.com/catalog/elpages/firewall_penetration_kit1in.php
Unfortunately, these are very expensive, especially when converted to Australian currency and shipped half way around the world.
I don't have access to welding equipment to make something similar. However, I did find a similar-looking 304 stainless flanged pipe on eBay, at about 1/20th the ACS price.
https://www.ebay.com.au/itm/3750710...ar=644142360188&widget_ver=artemis&media=COPY
I bought a set of five of the 25mm ID x 39mm long version. Received them, sectioned one to look at the joint. Smoothed one half, pulled the other half apart with a fair amount of force required. The weld has good penetration, but only goes about half depth. Images from various positions are attached.
I think it's probably usable to form a passthrough, but I'd like to hear from anyone who knows more about it than I do whether this is a good idea or not.
Thanks for your help.