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If you already have a 1/2" NPT coupling welded into your kettle (or plan
to), this sight glass kit will give you a sight glass and still retain your original 1/2" NPT female port on the open end of the tee. You can thread in your own thermometer as long as it has a 6" probe or may be you want to thread in a digital controller temp probe. However, we do NOT recommend trying to hang a ball valve off of the tee for draining purposes.
Includes:
- 19"
Polycarbonate Tubing rated to 250F threaded into a stainless bushing
(model SB kit). The tubing will exend approximately 20.5" above the
centerpoint of your welded in coupling). If you need a longer length for
larger vessels, you can specify a 24" tube on the custom page or
contact up for longer lengths.
- 1/2" NPT SS Tee
- 1/2" close nipple (goes between the tee and your welded in coupling)
- Black Vinyl Numbers for each gallon mark from 2 to 15.(5-50 liter also available, see options)
- 1/4" x 4" SS eyebolt (for securing the top)
Note: standard length is 19" and these are the ones that are in stock and ready to ship right away. Extended lengths of 24 and 36" may incur 2-4 days of additional lead time.
Install Requirements:
This
kit requires that you already have a 1/2" coupling installed in the
lower sidewall of your vessel (or want to have one welded in)
presenting 1/2" NPT Female threads externally.If you don't already have
one to weld in, you can buy one here. An alternative to welding in a
coupling is to silver solder a 1/2" welding spud though we don't
specifically provide support for how to do this.
Put a few turns of teflon tape on the threads of the close nipple before threading the tee assembly in to your coupling.
After
the tee is installed with the side port facing up, thread in the
bushing/sight tube and thermometer putting a few turns of teflon tape on
each.
Secure the tubing upright at the top of your pot by installing a stainless eyebolt.
Calibration Instructions:
1.
Level the vessel, apply a vertical piece of masking tape to the side of
the tube, and add a carefully measure gallon of water at a time noting
each gallon on the tape. Empty the vessel and remove the sight glass.
Cut the number strip into individual numbers, remove the rigid paper off
the number, apply at the correct level on the tube. Remove the clear
top masking leaving ONLY the black vinyl number behind. (It's probably
better to view the video to get this). If you are adventurous, you can
apply the decals directly to the sight glass while calibrating the
level, but we find it's much easier to get a clean straight application
with the tube laying down horizontally.
2. If you make a mistake
applying the vinyl numbers, you should be able to scrape them off with
your fingernail without damaging the tubing. However, do NOT use any
solvents or adhesive removers except for rubbing alcohol on a paper
towel and some elbow grease. Unfortunately if this happens, you'll have
to buy another strip of numbers.
LENGTH TRIMMING INSTRUCTIONS for all kit types:
If
after initial installation you find the tubing is sticking up past the
top of the vessel, you may want to trim it flush to make it look better
and avoid snagging.
1. Mark the cut line with a sharpie marker or
piece of tape. WARNING, if you are using tape to mark the cut line, be
sure to note which edge represents the cut line or you may cut the
tubing short by whatever the thickness of the tape is.
2. Remove
the kit from the vessel, laying the tubing down on a piece of cloth to
avoid scratching, and cut the tubing with a hack saw or other
fine-toothed trim saw. You can also use a tubing cutter designed for
copper pipe to make a score cut around the tubing and then snapping it.
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