Quick Disconnect Fittings for VAC SYS Lines

[Michael Kellough]

It looks like the Milton connectors linked on Amazon are the standard NPT thread.

Yes, you connect the Milton socket (the big brass thing) to the McMaster plug which will replace the brass barbed fitting in the Festool units. One each in the Vac Sys and two in the foot switch.

I like this particular set because both sockets are female 1/4” npt so I can screw tube/1/4npt fittings.

 

[woodwise]

Ah, that makes sense. Thanks for sharing!

 

[Michael Kellough]

Here is a much nicer Milton coupler/socket. This 5-in-1 coupler “Accepts all major interchanges: Industrial (M-Style), High Flow (V-Style), Automotive (T-style), ARO (A-Style) & Lincoln (L-style)”

It is also a “safety release” coupler which means it exhausts the air in the line before releasing the plug, so a pressurized hose won’t go flying when the collar is pulled. Of course this is of no value in a vacuum use.

 

[Cheese]

Michael, BSPP is a straight thread and it needs a face gasket to seal properly. I believe the Festool face seals are #002225, $2.09 each. I think they are Teflon but another elastomer would work...think rubber...silicone...or EPDM.

 

[Michael Kellough]

Thanks for the tip Cheese. I found Teflon washers at McMaster but the closest one is a little too small or too big, and they’re nearly $5 each. But I think the originals will be reusable.

 

[DynaGlide]

I went down a very deep dark rabbit hole doing this conversion about this time last year. It was 2 months of calling, e-mailing, sleuthing various suppliers. I was stubborn and wanted the factory parts even though I could've used alternatives like those linked.

https://www.festoolownersgroup.com/festool-tools-accessories/vac-sys-discontinued/msg662782/#msg662782

Matt

 

[Michael Kellough]

Thanks for that link Matt. I’d forgotten that there was fitting content there.

My goal was to preserve the threads on the original equipment and then go HiFlow 1/4 npt the rest of the way.