Building a custom fuel tank
Used to use vented fuel caps, but they suck

Does anyone know where to get a good check valve? I bought one from jegs but as you tip it over it leaks a little bit before it seals, that isnt acceptable for my rules, so i was hoping for a spring loaded one to make the tank be sealed unless a vacum occurs then the valve would open to equalize the pressure

sources?

 

Hey, I'm not trying to slam you but please have a fire support system running when you decide to test your cell. If you are the master fabricator please excuse my comments.

To answer your question http://www.fuelsafe.com has one.

Good luck and please be safe with this.

 

This is my third tank, and Im fairly adept with proper manufacturing processes, but thanks for the safety warning and the site.