Safe to use CPC disconnect on boil kettle ball valve?

Buford · Jan 5, 2009

I'm looking at getting the 1/2" MPT CPC disconnect (see here) to be attached to the ball valve on a brew kettle as it looks like it'd make things easier come time to drain the kettle, but my question is whether or not it's safe to do so. I'm afraid that it might not be able to take the heat for an extended period.

As a note, I'm an electric stove brewer, so there's no danger of flame nicking it.

ScubaSteve · Jan 5, 2009

You should look at the brass ones on McMaster. Most people around here are using them with great success, and they're cheaper.

Buford · Jan 5, 2009

Man, there are a lot of choices for QDs on the McMaster site. Any pointers as to what exactly I should be looking for? First ones I noticed were the "color coded brass" ones, but is that the kind folks are using?

caskconditioned · Jan 5, 2009

To answer your original question, I use them w/o any issues.

GilaMinumBeer · Jan 5, 2009

Used them on my 160K btu propane kettle with no problems.

IIRC, they are less expensive at www.USPlastics.com

Look for polysulphone disconnects.

Bobby_M · Jan 5, 2009

Mcmaster.com Search for items 6739K59 and 6739K68.

Padstack31 · Jan 5, 2009

caskconditioned said:
To answer your original question, I use them w/o any issues.

+1, I too use them with out issue, the can handle the heat just fine. I do 10 gallon batch sizes often.

ScubaSteve · Jan 5, 2009

caskconditioned said:
To answer your original question, I use them w/o any issues.

Sorry....I guess I tend to give unsolicited advice

The polysulphone ones are fine.....

caskconditioned · Jan 5, 2009

ScubaSteve said:
Sorry....I guess I tend to give unsolicited advice

I do too

Just a note if you do end up going w/ the polysulphone ones, it helps to drill out the cross hairs (I used a drill press). It will increase flow rate and helps them from getting clogged. I use them on all my connections so when recirculating the mash (via a HERMS) or recirculating the wort for an IMC whirlpool setup it really makes a difference.

salzar · Jan 6, 2009

Do you keep them on during the boil?

caskconditioned · Jan 6, 2009

salzar said:
Do you keep them on during the boil?

Yes. The ones I have have a 1/2" NPT thread (male side). They are screwed into the valve on my kettle as well as the return "t" on the middle of the keg for when I run my IMC whirlpool (see gallery for pics).

conpewter · Jan 6, 2009

These might be useful as well

MPX Medical - Grade Series - US Plastic Corporation
The polycarbonate ones are rated up to 250 degrees and would be ~5 a pair. (1/2")

airdale220 · Jan 6, 2009

I use them too and havent had any issues. I keep them on the bk during the boil. I bought mine at midwest supplies though. they're a little cheaper than northern ( plus i work five minutes away from there)

Safe to use CPC disconnect on boil kettle ball valve?

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