Invert Tube Backnut

  • Item #E47
  • Price: $3.99
  • Part #
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A William's exclusive, this is made of food grade nylon, custom-molded to include an integral backnut. Keeps beer (and yeast sediment) out of the Transfer Valve during fermentation. Fits our E39 Transfer Valve, or any valve with 3/4” tapered male pipe threads.
(7)
Average rating 10 out of 10 ( based on 7 reviews )

Simplicity itself

Review by Greg B. on 12/5/2005

Pros: I added a valve to my plastic fermenter, and used the invert tube backnut. No more racking cane! No more manipulating tubing to start a siphon! A clean and easy improvement to my wort transfer process.

Cons: After transferring my second batch this way, I decided the price (nearly as much as the valve) was no longer a "con".

Used a lot

Review by Stephen F. on 4/11/2009

Pros: I wore out my first one and now I'm buying a new ne and a spare. A great alternative to the hassle of siphoning.

Cons: As long as you're careful and don't tightent too far, you shouldn't have a problem with leaking, just be aware.

Nice product

Review by adam1001 on 5/16/2011

I've been looking for something like this. I almost built one until I found this. Really nice hardware.

Backnut is a good nut.

Review by George on 1/14/2013

Bought a handful of them to replace my transfer valve standard backnuts. They work great. The backnut can be reused if a bucket is junked.

Great!

Review by Jason on 6/5/2013

Great idea and works well.

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Dec 09, 2018 by Doug

Q: the invert tube pointed up left about 3" of beer (above the yuck). Is it supposed to be pointed down? I have an older Williams kit and the fermentation bucket hole is about 2.5" above bottom of bucket. Seems like a waste of beer.

A: Yes, it is designed to be pointed down. When pointed down and the valve is not opened, it stays dry and free of yeast sediment during the ferment, and then when you open the valve, it acts like a siphon tube very close to the sediment on the bottom of the fermenter.


Nov 07, 2018 by Chris

Q: Does this fit the 6 gallon Vintage plastic carboy?

A: No. The threads on the vintage shop valves are different.


Nov 06, 2018 by Frank

Q: Does this works with the brewers edge ?

A: No, it does not fit.


Aug 13, 2017 by Harry Anderson

Q: Is the opening pointed vertically (12 o'clock)?

A: It is pointed where it ends up after tightening. It should be at 6 pm for proper use.


Mar 29, 2017 by MIKE GORDY

Q: What does this do and how does it get installed. Not much information or pictures of item in use.

A: This is usually used on a bucket style fermenter to keep beer (and yeast sediment) out of the Transfer Valve during fermentation with an elbow bend. On our Siphonless fermenter it screws on the inside on the back of our valve but can fit on any valve with 3/4” tapered male pipe threads.


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