Circuit shutoff valves?

[K-Guy]

Shutoff valves for individual loops are standard on potable water manifolds but not on radiant heat manifolds. I was wondering which valves anyone has used to provide this capability on their manifold. It seems like I've seen a radiant manifold that came with loop shutoff valves but I can't find it. Thanks in advance!

 

[K-Guy]

Duh! My thought was to shutoff the flow while purging the system. I can do this with the flow control valve. Sometimes I'm such a dumbsh*t.