radiant floor valves

dennis_kings

I would like opinions whether it is advantageous to locate the zone valves at the supply or return end of a circuit? I have seen diagrams of it done both ways. Also are there reasonably priced balancing valve out there or do people commonly use ball or globe valves?

hr

Your choice

I always zone valve the return side. I use check pumps and this give me ghost flow protection on both ends. ZV hammer noise potential goes away with ZV's on return also. They see a little cooler water also.

There are cheap balance valves and expensive ones. A true flowsetter, in my opinion, should have an equal proportion valve and gauge connections. A globe valve or cone shaped valve are best. Danfoss, TA and few others offer this type of valve with connections for a gauge hook up.

Most radiant manifold flow setters are the cone shaped valve type.

B&G makes a less expensive flowsetter, but it is a ball valve type, and not "perfect" for flow reduction, as the ball partially closed presents a sharp wear edge. Plenty of them out there and they do have the gauge ports. Again IMO.

hot rod

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