Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > DIY Projects > Other > Drill bit orifice size
Reply
 
LinkBack Thread Tools
Old 05-02-2012, 01:42 AM   #11
Nightbrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Springfield, Missouri
Posts: 42
Default

Wouldnt the size need to be different for low pressure propane? Also Onehoppguy I would love to hear more about your tests.

__________________
Nightbrew is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2012, 02:14 AM   #12
OneHoppyGuy
HBT_SUPPORTER.png
HomeBrewTalk 2012 Vendor Giveaway Participate
Feedback Score: 0 reviews
 
OneHoppyGuy's Avatar
Recipes 
 
Join Date: Nov 2009
Location: Concord, CA
Posts: 1,704
Liked 40 Times on 33 Posts
Likes Given: 52

Default

The size I quoted was for low pressure. We haven't done efficiency tests, just flame quality. The goal was to achieve the cleanest/best flame by stepping up orifice sizes until we hit a peak performance. With that said, I believe it would be fairly safe to assume you would also get the highest efficiency.

__________________

Brewright. All Rights Reserved. We reserve the right to brew and to help you brew. To protect the brew and defend the brew. To make the brew and drink the brew.

BrewSteel.com
BrewSteel on Facebook

OneHoppyGuy is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2012, 02:40 AM   #13
mmurray
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Internet
Posts: 328
Liked 9 Times on 7 Posts
Likes Given: 3

Default

And my next question, what pressure regulator are you running? 10psi as opposed to highpressure 30psi?

Also, as we have discussed before, I am placing my needle valves just before the orifice on the burner so would I just pressurize the maifold to the low pressure setting (10psi for arguments sake) and then fine tune with the needle valve all 3 burners?

__________________

“God bless Homebrewing Beer. There are many things a man can do with his time. And this, is better than those things.”

Gulf Coast Brewers League

mmurray is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2012, 03:03 AM   #14
Warrior
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: York, Pa
Posts: 891
Liked 10 Times on 9 Posts
Likes Given: 21

Default

I just posted my pics on my new shop brewery page showing my new three tier brewstand. 3 burners running at the same time on natural gas. With the low pressure regulator of only 11 water colume inches the .125 size should work fine. I lost one of my valves and had to use a brass valve that was 1/4 in pipe thread for the burner connection and 3/8 flare to adapt the hose connection. I tried the existing hole size but it didn't have a good flame. I ended up using a 1/8 pipe plug that i threaded into the 1/4 brass connection. I used a 1/8 pipe tap which worked nicely with the internal hole size of the brass 1/4 fitting. I then drilled a 1/8 hole in the plug for the proper size on the gas flow. It works as good as the valves I bought from williams.

__________________
Warrior is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2012, 03:04 AM   #15
Nightbrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Springfield, Missouri
Posts: 42
Default

mmurray--I believe that you have to be about .5psi to be low pressure, or so I think I have recently learned.

__________________
Nightbrew is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2012, 03:04 AM   #16
OneHoppyGuy
HBT_SUPPORTER.png
HomeBrewTalk 2012 Vendor Giveaway Participate
Feedback Score: 0 reviews
 
OneHoppyGuy's Avatar
Recipes 
 
Join Date: Nov 2009
Location: Concord, CA
Posts: 1,704
Liked 40 Times on 33 Posts
Likes Given: 52

Default

I think we're talking apples and oranges here.
10 psi is considered high pressure. Low pressure for LP is 11" W.C. and uses a low pressure non-adjustable regulator.
11" W.C. (water column - measurement taken with a manometer) is the pressure used for furnace gas valves if you are automating burners.

If you are trying to save fuel by reducing your regulator pressure you will experience some savings but the burner you are using isn't designed for efficiency. Rather, it's designed for high BTU output. If you truly want efficiency, go all electric.

__________________

Brewright. All Rights Reserved. We reserve the right to brew and to help you brew. To protect the brew and defend the brew. To make the brew and drink the brew.

BrewSteel.com
BrewSteel on Facebook

OneHoppyGuy is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2013, 02:41 PM   #17
JackSmith
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Pittsburgh, PA
Posts: 47
Liked 6 Times on 5 Posts

Default

Nightbrew, what size did you end up going with to run your Blichmann burner on low pressure LPG? I tried the NG orifice from Blichmann, but it's much too big. I filled it with solder and tried .063 (1/16") and 0.078 (5/64"). The former is too small, the latter too big. Are you using something in between?

To those talking about using 3/32 or even .125 (1/8"), have you tried this size on a Blichmann burner? I'm finding that .078 is too large for 11" WC LPG; I can't imagine those sizes would ever work.

__________________

-Jack

When Yeast Attack!

JackSmith is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2013, 03:13 PM   #18
ryanhope
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2013
Location: Albany, NY
Posts: 243
Liked 23 Times on 18 Posts
Likes Given: 26

Default

Quote:
Originally Posted by Nightbrew View Post
I need to drill out my orifices for my blichmann burners, going from high to low pressure lp. What size bit? Thanks for everyones help on this project I hope to post pics soon.
Why would you want to do this? (Serious question, not trolling)
__________________
ryanhope is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2013, 03:17 PM   #19
JackSmith
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Pittsburgh, PA
Posts: 47
Liked 6 Times on 5 Posts

Default

If you want to automate your process using a furnace valve, (E.g., a Honeywell VR8200), you must step your propane pressure down to 11" Water Column (roughly 0.5psi) for the valve to function properly. If you do so, you need to change the burner's orifice to a larger size to get the same amount of propane into the burner. If you reduce the input pressure you need to increase the input volume to get a good flame.

__________________

-Jack

When Yeast Attack!

JackSmith is offline
ryanhope Likes This 
Reply With Quote Quick reply to this message
Old 08-14-2013, 09:38 PM   #20
Nickeldeposit
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: Ames, Iowa
Posts: 270
Liked 6 Times on 3 Posts
Likes Given: 14

Default

drilled one of my orifices out to 3/32 for low pressure BG-14 and it soots like crazy and the air control disc has to be wide open otherwise the flame is all orange, still has a good amount of orange flame with it open, real poor.

__________________
Nickeldeposit is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bayou Classic BG10 and BG12 Orifice THREAD Size dutchoven Brew Stands 7 02-24-2012 09:10 PM
how do i know if i need to drill burner orifice? slakwhere Brew Stands 4 03-29-2011 08:45 PM
What orifice size for BG-14 burners? ghart999 Brew Stands 0 03-28-2011 04:21 PM
Jet burner orifice size? cgondoli1 Brew Stands 5 01-17-2011 01:42 AM
What size holes to drill? IBUPIMP Kettles, Mash Tuns, & Hot Liquor Tanks 2 04-25-2009 05:08 PM



Newest Threads

LATEST SPONSOR DEALS