Hi ! First off, great job with the mod, I'm a sucker for additional ressources and brass is just what the doctor ordered
This is not a hard incompatibility I'm bringing up today, but if using this in conjunction with Bob's Logistics, Iron pipes end up being the only pipes requiring the brass fittings
I have no idea if this is something that could be fixed on your end, nor how easy it would be, but I'll just put the suggestion out there to add brass fitting to every possible permutation of pipes