Instead of including the typical metal ferrule rings to compress against the tubing that is typical of all compression fittings, we use a Nylon/ Delrin high temp and food grade plastic. The advantage to doing this, in this particular application is that you get a seal by simply tightening the compression nut hand tight (or a quarter turn more than that if you have delicate hands ;-)). Metal ferrules require a ton of torque to initially seal and the ring and removing for cleaning requires a wrench.
Note: if you're looking for a dip tube for a flat bottom pot, please consider the weldless bulkhead option #3 as a better/cheaper alternative.
- Drill a clean 13/16" (ideal) or 7/8" (a little loose but OK) diameter hole in your keg or pot taking care to avoid any wall contours that may prevent the silicone gasket from sitting flat on the inside wall of the vessel. Remove the thin locknut and SS washer from the assembly insert through the hole from the inside. Then slide the metal washer on and thread the locknut on until snug. The last step is wrapping the end of the threads with some teflon tape and then a ball valve of your choice. Of course, you can thread on any kind of fitting with 1/2" female threads as an alternative.
- The dip tube height may need to be trimmed in some cases. In a hot liquor tank, you want the opening of the tube to sit about 1/8" off the bottom. In a boil kettle, you can rotate the diptube so that the opening is about 3/4" off the bottom offset from center to leave some trub in the center dish. To leave even more behind, reverse the diptube so the short end is in the compression fitting.
Need a spare or replacement nylon compression ferrule?
Note: if it's for the WL58dip product above, you want the 5/8" version selectable below