Mixing valve

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ODDSNENDS4U
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Post by ODDSNENDS4U » Sat. Dec. 30, 2017 10:00 am

Installed a new coil from marks supply in Shenandoah and now hot water is plentiful. But too hot for safe domestic use. Now I guess I need a mixing valve. None here now. What is the best one for use. And is it fully adjustable to get water temperature to where I need it?

 
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lsayre
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Post by lsayre » Sat. Dec. 30, 2017 10:18 am

I can only speak for the 3/4" Taco mixing valve, which has given me 6 years of trouble free service.

https://www.supplyhouse.com/Taco-5003-C3-3-4-Swea ... xing-Valve

 
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Rob R.
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Post by Rob R. » Sat. Dec. 30, 2017 10:24 am

The one that Larry is using is also available in 1/2", and with a gauge if you want.

https://www.supplyhouse.com/Taco-5002-C3-G-1-2-Sw ... ve-w-Gauge

I have used the Taco ones and Honeywell with good results.

Do not be surprised if that new coil gasket weeps the first time the boiler cools down, they usually need to be snugged at least once.


 
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Post by Qtown1835 » Sat. Dec. 30, 2017 10:45 am

I used the webstone valve and it has been working well for me.https://www.supplyhouse.com/Webstone-75102W-1-2-S ... -Lead-Free
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McGiever
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Post by McGiever » Sat. Dec. 30, 2017 10:57 am

Best or recommended to be installed with piping in a 'heat-trap' to not allow full constant heat up against mixing valve...only allows heat at mixing valve during demand/flow.. Just turn down piping to drop 12" before going back up towards hot supply side inlet. :)

 
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Post by franco b » Sat. Dec. 30, 2017 11:04 am

Just put a hard seat globe valve and be done with it.


 
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McGiever
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Post by McGiever » Sat. Dec. 30, 2017 11:19 am

ODDSNENDS4U wrote:
Sat. Dec. 30, 2017 10:00 am
Installed a new coil from marks supply in Shenandoah and now hot water is plentiful. But too hot for safe domestic use. Now I guess I need a mixing valve. None here now. What is the best one for use. And is it fully adjustable to get water temperature to where I need it?
Different models:

For domestic HW models the design max is/should default at 120*F...this is code to prevent scaulding body parts.

Others like for radiant heat are different and and are designed to go higher than the 120*F...up to 140-160*F.

HTH

 
ODDSNENDS4U
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Post by ODDSNENDS4U » Sat. Dec. 30, 2017 5:24 pm

Thanks for the info and will go out and get one and some copper elbows to hook one up

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