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08-06-2012, 12:00 AM
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#1
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Location: Dunkirk, Maryland
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3/4 NPT thermometer?
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I bought a brew kettle off of Craigslist. It has two ports for the valve and thermometer. It already had the valve but no thermometer. It measures 3/4 inches though. I can only find 1/2 inch NPT. Anyone know where I can find a 3/4 inch?
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Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.
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08-06-2012, 12:04 AM
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#2
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If you measured the actual hole diameter at 3/4" then it IS 1/2" npt (pipe thread is not the same as actual size). Normally you make. 7/8" diameter hole for 1/2" pipe fittings.
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08-06-2012, 12:15 AM
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#3
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Join Date: Nov 2011
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This is what came out of the threaded whole.
Still 1/2 inch NPT? If so, I will make my purchase right away
__________________
Ęgir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ęgir's hall were always full, magically refilling themselves when emptied.
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08-06-2012, 12:34 AM
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#4
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Location: ATL
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That looks like 1/2 NPT. I believe NPT sizing is based on the inside diameter of the pipe.
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08-06-2012, 02:30 AM
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#5
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AHA Member
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Join Date: Dec 2010
Location: Nashua, NH
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3/4" actual is 1/2"NPT. Pipe thread items (fittings, pipes, etc.) go by ID not OD, so to get a 1/2" ID on the fittings, the OD has to be larger, which is what you've measured.
__________________
My RocketHub Project
Hopping Tango Brewery
跟猴子比丟屎 ・ Gun HOE-tze bee DIO-se
On Tap: Caramel Ale, Mocha Porter II, MO SMaSH IPA
Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
Fermenting
K1: MO SMaSH IPA
K2:
K3: TripSix
On Deck: Caramel Ale
Aging:mead
Mead [bottled]:Oaked Wildflower Traditional, Mocha Madness, Blackberry Melomel, maple wine
...the right of the People to keep and bear arms shall not be infringed
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