Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > TriClamp Sight Glass -- any ideas?
Reply
 
LinkBack Thread Tools
Old 08-31-2012, 03:15 AM   #1
bolts
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Portland, OR
Posts: 306
Liked 8 Times on 7 Posts
Likes Given: 3

Default TriClamp Sight Glass -- any ideas?

I've been working on creating a new sight glass for my 20g kettle that came with TC ports for a sight glass near the top and bottom. Anyone have a metal lathe and stainless welding skills?

After a brief lapse in my google kung-fu, I was able to find 1" Kimax heavy wall borosilicate tubing for a reasonable price. Part # CG-703-06L looks like an exact match to the original (1" OD w/ 5/32" walls), or I could go up to 1.25" OD #CG-703-07L. Approx $35 shipped for a 4' tube. One part down.

I have a pair of 1" TC sight glasses i'm planning to extend with new rods and glass. I can get rods here from McMaster, but they are a bit pricey. http://www.mcmaster.com/#liquid-level-gauges/=j2vxq1. I need 14 1/4" version if I go with the parts I have. Any leads on stainless 1/4" rod with threaded ends? I have no desire to try and thread 1/4" stainless rod...

The sight glass is two flanges, 4 rods/nuts, a borosilicate glass tube and a pair of silicon rings. Pretty straightforward design where the nuts are designed to hold the flanges in alignment while providing enough compression into the silicon seal to prevent leaks.

[Edit -- I bought this; not my creation]



I would rather have less bulky 1" TC elbow welded directly to an appropriate flange -- however, I can't weld, nor do I have a metal lathe... anyone willing to build four of them? This would gain me about 2" on the sight glass and probably mean I wouldn't have to buy new sight glasses with new rods/glass (and I could return the ones I have). 'course, it would probably cost as much as a sight glass for the custom work.



Something like this. I think I could literally have a flanged 1" TC like this welded onto a ~3" stainless disc about a 1/4" thick with a 1.5" hole in the center and 4 holes on the perimeter for rods. Hmm, or maybe solder?

__________________
bolts is offline
 
Reply With Quote Quick reply to this message
Old 08-31-2012, 03:37 AM   #2
aeviaanah
Feedback Score: 2 reviews
Recipes 
 
Join Date: Jul 2012
Posts: 585
Liked 57 Times on 35 Posts
Likes Given: 3

Default

This is a great idea man. I may do something like this for my sanke keg which is in the process of being modified for boil pot. You buy the sight glass assembly from Mc master as well?

__________________
aeviaanah is offline
 
Reply With Quote Quick reply to this message
Old 08-31-2012, 04:50 AM   #3
bolts
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Portland, OR
Posts: 306
Liked 8 Times on 7 Posts
Likes Given: 3

Default

Quote:
Originally Posted by aeviaanah View Post
This is a great idea man. I may do something like this for my sanke keg which is in the process of being modified for boil pot. You buy the sight glass assembly from Mc master as well?
I bought the original sight glass assemblies from brewershardware -- it's this one: https://www.brewershardware.com/TC10SG.html.

However, what I'm thinking is more cost effective is to take an existing TC 90 as-is ($13) + a stainless flange of the right dimensions. The tri-clamp face becomes the seat for the silicon washer and tube and the hole in the flange captures the washer/tube. McMaster has flanges, but they are absurdly expensive and not the right size.




The outside diameter might need to be tweaked to make sure the nuts clear the welded flange when assembled -- but it's pretty close.



The 1" triclamp has about a .86" ID hole and 1.984" outside diameter on the flange. The idea is to either a 1" or 1 1/4" heavy wall tube like this: http://www.chemglass.com/product_view.asp?pnr=CG-703. Ultimately, the hole in the flange depends on the silicon washer you use -- I can't seem to find stock ones yet and a washer with extra clearance requires less accuracy than an oring in the fittings.

flange + washer (orange) + tube (blue). Not showing the tri-clamp elbow that would be welded on the back.

__________________
bolts is offline
 
Reply With Quote Quick reply to this message
Old 08-31-2012, 05:25 AM   #4
bolts
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Portland, OR
Posts: 306
Liked 8 Times on 7 Posts
Likes Given: 3

Default

I found these gaskets on McMaster -- Part #93185K71 .88" ID, and 1.38" OD and .093" thick. http://www.mcmaster.com/#silicone-se...ashers/=j302gk

They would work well with the 1.25" OD tubing that should have ~.9375 ID
CG-703-07L 1-1/4" ± 0.040" OD, 5/32" ± 0.017" Wall

__________________
bolts is offline
 
Reply With Quote Quick reply to this message
Old 10-25-2013, 04:15 AM   #5
sdgenxr
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2006
Location: Sandy Eggo, CA
Posts: 89
Liked 5 Times on 4 Posts
Likes Given: 13

Default

Digging up an old thread, but I was curious if anyone was able to come up with an easy resolution for this?

My quick thoughts would be to drill, tap and weld or solder an elbow compression fitting to an end cap. Like this guy who did the same thing for his pumps.

Then it would be easy to add a polycarbonate sight glass like the weldless kits that are out there.

__________________
sdgenxr is offline
 
Reply With Quote Quick reply to this message
Old 10-26-2013, 09:09 AM   #6
kickflip_mj
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Posts: 923
Liked 98 Times on 66 Posts
Likes Given: 3

Default

Why don't you just buy a TC compression fitting? They do make them for like $20 bucks

__________________
kickflip_mj is offline
 
Reply With Quote Quick reply to this message
Old 10-27-2013, 03:53 PM   #7
sdgenxr
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2006
Location: Sandy Eggo, CA
Posts: 89
Liked 5 Times on 4 Posts
Likes Given: 13

Default

Do you have a link? The only one I was able to find are $80 for a 1/2" compression by 1 1/2" triclamp.
https://www.gvc.net/p/4787/tube-to-tri-clamp-adapters

__________________
sdgenxr is offline
 
Reply With Quote Quick reply to this message
Old 11-03-2013, 03:31 PM   #8
kickflip_mj
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Posts: 923
Liked 98 Times on 66 Posts
Likes Given: 3

Default

I can not figure out where I saw these and it's driving me insane!

__________________
kickflip_mj is offline
 
Reply With Quote Quick reply to this message
Old 12-07-2013, 04:32 PM   #9
juic
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2013
Location: Great falls, Mt
Posts: 77
Likes Given: 5

Default

Hey bolt you said you bought the sight glass from brewers hardware. Can you tell me what the inside and outside diameter of the glass?

__________________

Life is like beer. Much better when chilled!

juic 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
Method to allow reading sight glass below bottom of glass ? DeafSmith Equipment/Sanitation 15 11-26-2013 11:24 PM
sight glass on MLT? BuzzCraft Equipment/Sanitation 14 05-14-2010 02:53 AM
What to do with sight glass? Nerdie Equipment/Sanitation 20 02-12-2010 02:13 AM
Instead of a sight glass.... beerme70 Equipment/Sanitation 4 05-27-2008 03:27 AM
Sight Glass Chris_Dog Equipment/Sanitation 2 11-03-2007 01:07 PM