After months of reading about distillation on this forum and weeks of waiting for parts to piece my first rig together, it looks like everything is ready to go in the morning! I did a dry vacuum test and only achieved 37 microns, with 4 microns at the pump when blanked off. Though not bad, I was expecting a lower vac given the k25 hoses and all glass being Chemglass, LS, and Goldleaf. All glass to glass joints have PTFE sleeves with a smidge of Krytox vacuum grease. Thermocoupler adapters on head and BF are Chemglass PTFE also with a bit of grease (no sleeve). Steel keck clamps all around except for the cold trap. PTFE GL18 to KF 25 adapters on the cold trap and cow. Fiberglass rope on top, and I plan on breaking out the space blankets as well for the BF, head, and condenser.
A few things I’m a little concerned with are my lack of bleed valve for vacuum and condenser hoses. Have a valve that can control how fast the pump pulls, but I can’t actually bleed it once it’s pulled. I’m also using a heating circulator that gets up to 100c. I’m planning on running the condenser at 90c. I’d run hotter, but water boils at 92c in my neck of the woods. Which brings me to my second concern, hoses. After a test run, this vinyl hose is getting scary soft at 80c. Thinking of picking up 5/16” radiator hosing while I’m out grabbing dry ice. Is there a better option than that?
Here are some photos of the setup. Promise I’m not a slob, the mess of wrappers and such are getting cleaned up before starting .