Hi can canone help? I'm looking for a supplier for those sprung loaded ball valve found on the high end cnc router vaccum beds...the ones where when you put your material on they push down the ball and that opens the valve and allows the vaccum to pull through. I'm in england but am happy to import from anywhere.....If you can help please let me know....any help appreciated.....thanks.

I saw one of those vac clamp things the other day in a store, should of bought it. Trend machinery sells the whole thing. Maybe they would just sell the valves. http://www.trendmachinery.co.uk/minimach/

Something like this.

http://www.gitsmfg.com/oil-hole-covers-style-GB.asp
http://www.gitsmfg.com/oil-hole-covers-style-S.asp

Thanks for you help....maybe i will contact trend and see what they say...or those oil valve things look perfect.......thanks again!

Mcmaster Carr has steel ones, but not the rubber ones like our router has. Not sure what they call them though.

Old Thread, but PN 1214K4 on Mcmaster.com for 3/8"
Called: Easy-Fill Straight-Style Oil-Hole Covers

http://www.m-powertools.com/products/vacuum/ball-valves.htm

you can find them on Joewoodworker.com their I think 6 for 3.95