Weldless Stainless Steel Bulkhead 1/2'' NPT

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Item Number: 99-3335

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Weldless Bulkhead

Use for attaching your thermometer, ball valve or sight gauge to a stock pot.

No welds needed!!

All you will need is a 7/8" hole in your pot to install this in to.

Learn about sealing National Pipe Thread (NPT) fittings.

Q: Is the male fitting on the inside of the kettle or outside?

Asked by: Loyd Nichols - 11/10/2020

A: the male fitting is normally intended to be on the inside but either can be done without issues

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Answer provided by: Aaron (11/11/2020)

Q: Will this work to install the Adjustable Angle AIH Adjustable Brew Pot Thermometer you sell separately? I just bought the thermometer and did not realize I needed additional hardware to install...

Asked by: Nicholas Teixeira - 4/22/2020

A: this would be a good option for a weldless install of the thermometer with a 1/2" Male thread

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Answer provided by: Aaron (4/23/2020)

Q: Will this fit snugly with a round stock pot. I am using a a 5 gal. pot to finish my maple syrup

Asked by: John M Coyne - 1/8/2019

A: It would. These are very commonly used on rounded size kettles for the purpose of adding a drain port with a valve

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Answer provided by: Aaron (1/9/2019)

Q: can I run diesel fuel through this fitting?

Asked by: steve - 7/19/2018

A: WHile the fitting is designed an intedned for modifying brewing kettles for beer, the fittings are 304 stainless and the gasket is rubber so the materials could potentially stand up to use with fuel but would not be guaranteed for this purpose

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Answer provided by: Aaron (7/19/2018)

Q: Where does the wall of the vessel go within this assembly? Between the hex nut and the rubber gasket? Between the gasket and the flat washer?

Asked by: Nick Koukourakis - 4/11/2018

A: The lock nut, flat washer and then gasket will be on the inside of the kettle and the coupler will rest on the outside to close off the connection

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Answer provided by: Aaron (4/11/2018)

Q: I am converting an antique copper/brass fire extinguisher into a fuel tank for a clients sail boat. Will it seal due to the curvature of the tank thats roughly 8 inch in diameter?

Asked by: shawn - 3/10/2018

A: The curve may oy may not pose an issue. The gasket compression with the flat washer seals off the connection and the washer may not sit flat on the sidewall of the curve is too narrow.

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Answer provided by: Aaron (3/10/2018)

Q: What material is the O ring constructed of? I am not using this for food products but would like to research what chemicals it is impervious to. Also, does this fitting and fitting 73-RLTWFSS1/2 . Use the same O-ring material /size? Thank you!

Asked by: Shawn z - 2/27/2018

No Answers have been submitted yet.

Q: Will the rubber o-ring stand up to diesel fuel? I want to use this on a stainless steel diesel storage tank.

Asked by: Bob Work - 10/26/2017

A: This is a food grade rubberized o'ring that is sold for use with food grade products. While it should hold up to use with fuel we cannot confirm or deny it would work for this purpose and would be at the risk of the end user

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Answer provided by: Aaron (10/26/2017)

Q: Is the weldless bulkhead fitting designed for use with boiling water? I have a maple syrup evaporator pan that I would like to install this fitting on and would like to know if it will hold up OK? Also, will the "O" ring not break down or release impurities into the boiling sap and syrup?

Asked by: Bill Widrig - 3/27/2017

A: The fitting is designed for use on brew kettles for beer so boiling and high temps would not be an issue. The O'ring is made from a food grade rubber that should not put any off flavors or impurities into the product

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Answer provided by: Aaron (3/27/2017)

Q: Can I attach this with the female coupler inside the kettle for a whirlpool attachment and have enough male thread penetration through the outside of the kettle to attach a 3 piece ball valve without worrying about leaks?

Asked by: Tim - 2/14/2017

A: You could attached a 2nd female coupling to the inside threat of the bulkhead for a whirlpool arm, but the thread left over after being attached will vary depending on the thickness of the kettle wall.

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Answer provided by: Aaron (2/15/2017)

Q: What is the length of the 1/2" coupling?

Asked by: Jesse - 5/6/2015

A: The length of the 1/2" coupling is 1.25" long.

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Answer provided by: Robert (5/6/2015)

Q: What about spare o rings? Are they available?

Asked by: greg - 1/26/2015

A: We do sell spare o-rings for this assembly, they are Item Number 29-8849 on our website.

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Answer provided by: Carson (1/27/2015)

Q: what size is the thread on the inside? 1/2" as well?

Asked by: naga - 10/29/2014

A: This part is entirely 1/2" NPT, which is National Pipe Thread. 1/2" NPT does not mean that it is 1/2" in diameter, it is a standardized pipe thread size which is common in the brewing industry.

Was this answer helpful? 4 of 4 Guest(s) found this Answer helpful.

Answer provided by: Carson (10/30/2014)

Q: What is the highest temp. will the o-ring withstand ?

Asked by: Rick - 2/26/2014

A: The o'ring can withstand temperatures between -65° to +450° F.

Was this answer helpful? 7 of 7 Guest(s) found this Answer helpful.

Answer provided by: Robert (3/3/2014)

Q: Will this work on an igloo cooler with your 3 piece ball valve?

Asked by: Ray K - 1/13/2014

A: It may work. We recommend Item Number 63-3415 for that purpose.

Was this answer helpful? 3 of 9 Guest(s) found this Answer helpful.

Answer provided by: Chris (1/14/2014)

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Weldless Stainless Steel Bulkhead 1/2'' NPT

Q: Is the male fitting on the inside of the kettle or outside?

Q: Will this work to install the Adjustable Angle AIH Adjustable Brew Pot Thermometer you sell separately? I just bought the thermometer and did not realize I needed additional hardware to install...

Q: Will this fit snugly with a round stock pot. I am using a a 5 gal. pot to finish my maple syrup

Q: can I run diesel fuel through this fitting?

Q: Where does the wall of the vessel go within this assembly? Between the hex nut and the rubber gasket? Between the gasket and the flat washer?

Q: I am converting an antique copper/brass fire extinguisher into a fuel tank for a clients sail boat. Will it seal due to the curvature of the tank thats roughly 8 inch in diameter?

Q: What material is the O ring constructed of? I am not using this for food products but would like to research what chemicals it is impervious to. Also, does this fitting and fitting 73-RLTWFSS1/2 . Use the same O-ring material /size? Thank you!

Q: Will the rubber o-ring stand up to diesel fuel? I want to use this on a stainless steel diesel storage tank.

Q: Is the weldless bulkhead fitting designed for use with boiling water? I have a maple syrup evaporator pan that I would like to install this fitting on and would like to know if it will hold up OK? Also, will the "O" ring not break down or release impurities into the boiling sap and syrup?

Q: Can I attach this with the female coupler inside the kettle for a whirlpool attachment and have enough male thread penetration through the outside of the kettle to attach a 3 piece ball valve without worrying about leaks?

Q: What is the length of the 1/2" coupling?

Q: What about spare o rings? Are they available?

Q: what size is the thread on the inside? 1/2" as well?

Q: What is the highest temp. will the o-ring withstand ?

Q: Will this work on an igloo cooler with your 3 piece ball valve?

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