SDC

I don't know of any document existing that states what you don't need; usually it's the opposite stating what you do need. That I don't have any resources for either... If you do steam, the jacket is pressure rated and does have a whole set of code that comes with it and requires a pressure rated welder. All components of our still (aside from the steam jacket) are rated at 0.5 bar; and that level of pressure should never come even close to being reached in operation unless you have a malfunction - as the still should always be an open system at the end. NSF ratings are important for many surfaces and seals. Possibly the UL listing is being asked for the steam jacket?? - Ishan

Hi, We also engineered and fabricated our own still and columns www.seattledistilling.com . From my heavy reading through the TTB manual...you are allowed a 60 day window to have your equipment together (in relevance to what you put on your application) from when you submit your application. Otherwise you will need to go back (after your DSP approval) to amend and add any other unlisted equipment. I agree with Brian, that you must have your knowledge in order in terms of welding/brazing, etc. Safety is obviously a concern, but also wasted efficiency and profit if you develop vapor leaks - and there will be leaks. Let me know if you have any questions! Cheers...Ishan.

Steven, This may be late help/information; however you're welcome to come take a look at our double column we designed. We're pumping to the top of column one just under its dephlegmator and it has performed very well for us. We're over on Vashon; come over anytime! Cheers, Ishan ishan@seattledistillingcompany.com