Zymico Weldless Botom Dump for Conical Fermenter

Zymico Weldless Botom Dump for Conical Fermenter

Post by Two Moon » Sat, 25 Jan 2003 16:01:58



Hello,

I writing to find anyone who has experience with the Zymico bottom dump
weldless fitting.  It is a 1/2" full port ball valve.  Actually, anyone who
has a 1/2" full port valve will do, and this doesn't necessarily have to be
a review of the Zymico product.  I just thought the title would get more
people to read.  Anyway, I was wondering if it is large enough to keep from
clogging.  I just bought a 31 gallon stainless steel hopper from Toledo
Metal Spinning, so I will need to dump out a Lot of yeast (for a homebrewer)
and don't want the hassle of having to coax the yeast out.  Should I get a
ferrule welded to the bottom and get a 1" butterfly valve instead?

Thanks,

Dave

 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by Alan McKa » Sat, 25 Jan 2003 21:46:45


Quote:
> people to read.  Anyway, I was wondering if it is large enough to keep from
> clogging.

I have a Vvessel which has a 1/2" port on the bottom.  Note it also has a collection
capsule on the bottom into which the sediment collects, so as long as that capsule
does not fill up there is no worry of clogging.  I did have it fill once, though.  It was
my own fault since I way overpitched the wort.  It filled a good two inches into the
cone at the bottom, and stupid me thought I'd give it time to sediment out good and
hard, thinking that perhaps it would pack down enough to all go down into the
capsule.

Well, it packed down alright.  And yes, the port did clog.  With the Vvessel this
is a problem because the dump port is also the racking port (i.e. there is only
1 port).  If I had two ports I could have easily transferred the wort by means
of the racking port, and the dump port was not clogged tightly enough that it
could not be encouraged to open up with a bit of rocking of the vessel.  As it
stands with one port I had to rock to encourage it to open up, and a passage
did open, but it then became nearly impossible to rack without more yeast
breaking free and getting into my keg.

So in short, if you have a racking port and a dump port, I doubt this will be an
issue in a 5 gallon fermenter at least.  In a larger fermenter with all that weight
packing down the sediment, it may very-well become clogged far worse.

cheers,
-Alan
www.thebeersite.com

 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by George Dahe » Sat, 25 Jan 2003 22:00:13


This really depends on your brew and yeast as to what may or may not clog.
My conical from usplastic.com came with a 2" bottom bulkhead that I had them
switch to a 1" (at no cost). Minibrew uses a 1" in theirs as well. I think
2" is way too big and 1/2" is maybe too small. 1" is working great for me.

--
George Daher
www.geocities.com/sgdaher/brewery


Quote:
> Hello,

> I writing to find anyone who has experience with the Zymico bottom dump
> weldless fitting.  It is a 1/2" full port ball valve.  Actually, anyone
who
> has a 1/2" full port valve will do, and this doesn't necessarily have to
be
> a review of the Zymico product.  I just thought the title would get more
> people to read.  Anyway, I was wondering if it is large enough to keep
from
> clogging.  I just bought a 31 gallon stainless steel hopper from Toledo
> Metal Spinning, so I will need to dump out a Lot of yeast (for a
homebrewer)
> and don't want the hassle of having to coax the yeast out.  Should I get a
> ferrule welded to the bottom and get a 1" butterfly valve instead?

> Thanks,

> Dave

 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by Mark » Sat, 25 Jan 2003 22:43:37



Quote:
> Hello,
> Anyway, I was wondering if it is large enough to keep from
> clogging.  I just bought a 31 gallon stainless steel hopper from Toledo
> Metal Spinning, so I will need to dump out a Lot of yeast (for a
homebrewer)
> and don't want the hassle of having to coax the yeast out.  Should I get a
> ferrule welded to the bottom and get a 1" butterfly valve instead?

> Thanks,

> Dave

31 gallons, now that's home brewing! It sounds like you plan on going with
the larger batch sizes (10+) then I would go for the 1" valve to be on the
safe side. You can always use a reducer to bring it down to 3/4" or 1/2" if
you need to later.

Mark R

 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by Bob » Sun, 26 Jan 2003 01:42:38




Quote:
> Hello,

> I writing to find anyone who has experience with the Zymico bottom
> dump weldless fitting.  It is a 1/2" full port ball valve.  Actually,
> anyone who has a 1/2" full port valve will do, and this doesn't
> necessarily have to be a review of the Zymico product.  I just thought
> the title would get more people to read.  Anyway, I was wondering if
> it is large enough to keep from clogging.  I just bought a 31 gallon
> stainless steel hopper from Toledo Metal Spinning, so I will need to
> dump out a Lot of yeast (for a homebrewer) and don't want the hassle
> of having to coax the yeast out.  Should I get a ferrule welded to the
> bottom and get a 1" butterfly valve instead?

I've got a 12.2 gallon from TMS, and use it for 10 gallon batches. What
size batches are you brewing?? what kind of stand did you build?

I brazed a 1/2" half *** to the bottom of my conical and attached a 1/2"
full port valve to that. the brazed fitting is strong (enough) for a semi-
stationary tank like a conical.

What I have noticed, however, is that dumping via the bottom valve brings
too much sediment into the kegs. My first batch was ruined with an
acetaldehyde aroma that wouldn't go away. I've since switched to racking
out with a cane and it seem much better. I intend to install a racking port
to make this a little easier.

Someone else wrote that bottom dumps don't fully clear the trub and yeast
like in commercial breweries because of the reduced head pressures in
homebrew quantities.

btw, what kind of lid do you have?

bob.

 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by Two Moon » Sun, 26 Jan 2003 04:04:16


Quote:
> I've got a 12.2 gallon from TMS, and use it for 10 gallon batches. What
> size batches are you brewing?? what kind of stand did you build?

I'm going to be brewing 25 to 30 gallon batches.  I'm actually planning on
building a wood stand.  I'll post pictures on the net when I have it built.

Quote:
> btw, what kind of lid do you have?

I bought the domed lid so that I'll have a little less blow-off if I fill it
up.
Quote:
> bob.

 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by Two Moon » Sun, 26 Jan 2003 04:05:31


Quote:
> 31 gallons, now that's home brewing! It sounds like you plan on going with
> the larger batch sizes (10+)

I'm filling this baby up!  One U.S. barrel here I come . . .
 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by bregen » Sun, 26 Jan 2003 04:40:48



Quote:

>Hello,

>I writing to find anyone who has experience with the Zymico bottom dump
>weldless fitting.  It is a 1/2" full port ball valve.  Actually, anyone who
>has a 1/2" full port valve will do, and this doesn't necessarily have to be
>a review of the Zymico product.  I just thought the title would get more
>people to read.  Anyway, I was wondering if it is large enough to keep from
>clogging.  I just bought a 31 gallon stainless steel hopper from Toledo
>Metal Spinning, so I will need to dump out a Lot of yeast (for a homebrewer)
>and don't want the hassle of having to coax the yeast out.  Should I get a
>ferrule welded to the bottom and get a 1" butterfly valve instead?

I've got a MiniBrew with 1" FP dump valve. I've only use it once and don't have
a lot of data to provide. Towards the end of fermentation, the yeast was very
thick and took a long time to extrude through the valve. A 1/2" probably
wouldn't have worked. However, this was with a 10 gallon batch. The extra
pressure from a 31 gallon batch may be enough.
 
 
 

Zymico Weldless Botom Dump for Conical Fermenter

Post by Mike Shar » Sun, 26 Jan 2003 08:17:40


Get the ferrule and butterfly.  But use 1 1/2 or 2"...The butterfly valve
has an obstruction in the middle (the butterfly part, of course), so you'll
probably want an even bigger size than 1" IMO.

My little 8 gallon minibrew has a full port 1" valve.

Regards,
Mike Sharp


Quote:
> Hello,

> I writing to find anyone who has experience with the Zymico bottom dump
> weldless fitting.  It is a 1/2" full port ball valve.  Actually, anyone
who
> has a 1/2" full port valve will do, and this doesn't necessarily have to
be
> a review of the Zymico product.  I just thought the title would get more
> people to read.  Anyway, I was wondering if it is large enough to keep
from
> clogging.  I just bought a 31 gallon stainless steel hopper from Toledo
> Metal Spinning, so I will need to dump out a Lot of yeast (for a
homebrewer)
> and don't want the hassle of having to coax the yeast out.  Should I get a
> ferrule welded to the bottom and get a 1" butterfly valve instead?

> Thanks,

> Dave