When you pull items out of an item valve, it pulls items in the world next to it, kind of like a hopper. If you push into it, it spits them out, but completely straight unlike droppers.
Pulling from/pushing into a Block Gate's inventory makes it act as a block breaker/placer. Mind you, it right-clicks to place, so you can use it like an autonomous activator for right clicking. If an item cannot be placed, it's spit out like an Item Valve.
Pulling from/pushing into a Block Gate's inventory makes it act as a block breaker/placer. Mind you, it right-clicks to place, so you can use it like an autonomous activator for right clicking. If an item cannot be placed, it's spit out like an Item Valve.