Oh, cool. He's got a new website.
Yes this is what I have. I absolutely love it. Having the cap like this with ALL the ports on it means that every port (besides the bottom dump) is easily removable and hence easily boil-able in the HLT to sanitize.
I should have gotten a PRV port added on the cap, but to jerry rig I put one on the gas in line instead. You can get the following (also pictured below) PRV's at several different pressure ratings from major suppliers- 40, 60, etc.. As you can see on my cap, there is plenty of room to weld a 1/4" female NPT port on the cap to screw one of these into.
I use the gas out as a blow-off, but not exactly as he has pictured. I have a couple custom welded fittings (corny posts welded to tri-clamp caps...what I'm holding) for that purpose. Also, this way I can do pressure ferments with a blow-off vessel attached. And, I basically have threadless in and out of my primary, since every thread is past an o-ring, on the outside. Savvy?
My method is to use the 3 gal corny for a blow-off vessel/top cropper with the following fitting I'm holding - plus another on the corny as pictured. Then I detach from the primary and put the blow-off tube on the bottom dump tri-clamp and collect bottom yeast in the same vessel - hopefully thereby getting a full spectrum of yeast. I then put the post back on and attach my adjustable pressure relief valve (already on in the picture) to the gas out and ramp up internal pressure after high krausen to capture as much natural carb as I can.
IMO, the brewhemoth's need to be at least 35 PSI pressurizable to compete with what I can do with this. As I mentioned, the cone is so over-rated... not that it wouldn't be great to have, but..... not worth Morebeer prices. NEEDing a 60* cone (on the probrew scale) is all about the hydrostatic pressure (meaning the sheer weight of the volume) in a 15 bbl+ ferm vessel 'cooking' the yeast cake and making it un-viable and has nothing to do with anything on a homebrew scale (provided you can get enough yeast out the primary conveniently and sanitarily...the only other purpose). I do also have something similar to Kally's method of bottom dumping on mine. I have a tri-clamp elbow and a butterfly valve. The tri-clamp elbow is a nice reservoir for yeast to settle into.... ensuring a nice dump should you do one every other day or such.... like in a brewery.
I must say that I'm happy to check out Brewhemoth. Hadn't seen it till now. Good on ya fellas. I can't wait to see what you do for cooling. BUTTT..... please understand that the pressure thing is where you could score against all the other conical manufacturers. There is simply nothing on the homebrew market that is a truly a uni-tank (which mine is)... and also conical. I'm sure those vessels will rate well- they certainly look like it. Test em, rate em.... git-r-done. Being pressurizable is the difference between a 'fermentation vessel' and a 'uni-tank'.