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Posted by HeatPro on May 15, 2006 at 14:16:43:
In Reply to: Re: The steps to Design a Radiator System posted by joe on May 15, 2006 at 13:28:22:
: Is there any advantage to having the zone valve placed between the convector and the return piping (Heatpro Euro diagram), as opposed to placing the zone valve between the supply piping and convector?
+++ You are probably looking at the Two-Pipe drawing in reverse. All pictures on my site have the pump moviing water away from the expansion tank (pump-away configuration.) You are probably looking at the flow control valve (weighted anti-gravity-flow check valve) as a zone valve.
With 1/2-inch lines however, gravity flow would hardly exist, so the zone valve can go on either side, - supply or return riser.
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