Flowvalve before the circ ?

Unknown

I thought the upstairs zone piping was gonna be tighter than how it came out , so I installed the flowvalve upstream of the circulator . Is there any problem piping it this way ?

I changed the piping 3 times trying to keep some clearance to remove the top for cleaning , which can be done as it is . The other pics are the old Low York , and one pic shows a hairline crack in the hood - almost a serious situation .

Bill Nye

RON,

With all of those tight spaces you should be using the Taco IFC's or the Grundfos. Would save a lot of room.

It will "work" but the pump will try to suck the flocheck shut before the water starts to move every time there is a call for heat. It would be better after the pump but oh well , it's done...............

hr

Any flow restriction

on the inlet side of a circ will lead to a potential cavitation problem.

I agree a circ with intergral check should be in your bag of tricks!

hot rod

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Unknown

Bill and Hotrod

Thanks for the info . I had to install the flowvalve 1st once before , as well as today , and it worked good . Now that you both mentioned them , the Taco IFCs woulda fit in there nice - I tried to stand a circ and flowvalve upright and was 3 inches too high . I tried talking to the higher ups about the IFC circs , Taco 007s with a built in relay , pex for long runs of domestic water or heat lines , pressure reducers and backflow preventers with sweat ends .... , sometimes you get so set in your ways it's hard to change . I'll keep trying though . Thanks guys .