Posted Fri Oct 29, 2010, 5:55pm Subject: Help with steam monster
I have been wanting a stovetop steamer for some time so when I have to make drinks with milk content I won't have to keep going from brew temp to steam temp on my Silvia.
I have come up with this. Before you conclude "this fool is going to blow his head off" note that the OEM pressure regulator of the pressure cooker is in place. It was screwed into the lid with 1/8" pipe thread. I removed the regulator fitting from the lid and put into the top of the T. The T is installed to the lid with a nipple. The short pipe from the T is connected to the 1/2" NPT ball valve with a reducing bushing.
What I need is either a steam wand to fit the valve or some standard steam wand and adapters to get to 1/2"NPT.
Sitting on top of my 11500 BTU burner this thing puts out steam which I think will rival the big two group Rio espresso machine which I use at work.
With the steam valve closed the pressure cooker can be used normally.
The ball valve is nice. The steam valve on the Silvia should be that good.
phreich Senior Member Joined: 30 Jul 2010 Posts: 46 Location: Oregon Expertise: I live coffee
Espresso: 1979 Elektra single group... Grinder: Nuova Simonelli MDX Vac Pot: Bodum Drip: Mr. Coffee Roaster: thinking about setting up a...
Posted Fri Oct 29, 2010, 6:40pm Subject: Re: Help with steam monster
I would verify how many Bar pressure the pressure cooker does.
I bet it is much higher than the boiler pressure in a typical commercial machine (about 1 bar above atmosphere). You probably will have too much pressure.
Maybe it's time to look for a home heat exchanger espresso machine -- if you are persistant you can find an older Nuova Simonelli Elli or Ellimatic for not too many dollars and it is a big step up from a single boiler machine. The current home model for that brand is the Oscar.
gime2much Senior Member Joined: 10 Dec 2004 Posts: 1,965 Location: Sunny S Fl Expertise: I love coffee
Espresso: La Pavoni, Astoria comm, 2... Grinder: La Pavoni Zip, Bunn... Drip: Bunn comm Roaster: Popcorn popper (air),co/ufo
Posted Fri Oct 29, 2010, 8:08pm Subject: Re: Help with steam monster
Most home pressure cookers have the pressure relief (jiggling weight) at 15 lbs or 1 bar which is a bit lower than most steam boilers are set. Pressure fryers (broasters) are at 5 lb.
Posted Fri Oct 29, 2010, 9:17pm Subject: Re: Help with steam monster
I did a search and found the pressre of a Presto similar to mine to be 15 psi so I think I am safe there. If the steam boiler is set above one bar on commericial machines this setup may not blow away the Rio at work but after the initial burst from Silvia I have to believe this will outperform her. There is a pressure gauge on the Rio. Next time I go into work I take note of the boiler pressure.
I just noticed that the ball valve is made in Italy. Does this mean they use NPT? If so this project may be a peice of cake.
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