I'm trying to find out the part number for the valve on the fx cf bottle. I ordered an 580cc bottle from China. I just need to valve to use it. But looking at the impact diagram is so confusing with all the small parts. I can not figure out which is the valve. Have anyone order from fx and know the part number for the valve? Does it come complete with pin, spring, o-rings. Or is all that separate? Cause I need to complete valve so I can plug and play.