Anti-Scald For SHW [RE-wrenches]

bbassett at rockisland.com bbassett at rockisland.com
Mon Sep 19 19:26:57 PDT 2005


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Travis,

I think you are looking for an anti-scald valve that meets the ASSE 1017 
standard. ASSE is at www.asse-plumbing.org. This is for a hot water 
distribution system. You'll find most valves you can buy at a plumbing 
distributor meet this standard since it is required in many jobs now. 

But specifically the Watts 70A series that was common in SDHW systems 
for many years is NOT certified, and will not pass any inspection, 
besides having a very short lifetime in my experience. 

I've recently been using the Honeywell AM100 series, which so far has 
been fine, of course our water here in western WA is pretty easy on 
plumbing. Many valves including these have teflon coatings on the 
working parts to help extend service periods due to scale buildup. There 
is a choice of temperature ranges to choose from so you'll need to know 
the specification for your project. 

Brad
AEE Solar


Travis Creswell wrote:

> 
> I'm specifically looking for information about the requirements of using
> anti-scald device for a drain back system.  
> 
> 
> 
> 

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