Uniflow valve placement

Andrew_14

I have hot water radiant heat and recently had some pipe work done in the basement to tighten up an area we are remodeling. Since the pipes were refit, a base board that previously works is now luke warm at best. The system has been drained and bled a couple times now with the same result.

Additional background; The original configuration had three pipes tieing into one pipe leading to the boiler (imagine a fork sitting flat on table). Where the three pipes came together at about the same horizontal height, there was a vertical T joint that essentially stepped down aboout six inches to meet the boiler pipe (imagine your fork now has 2 90 degree angles in the handle where it meets the tines). Today, each pipe now steps down to the boiler pipe on its own. The pipe with the problem is 3/4" and fits to the boiler pipe via a reducing T joint. The other two pipes are the same diameter as the boiler pipe, which is 1", so there is no reducer involved.

The contractor said he might need to install a "uniflow valve" to correct the problem. Due to a variety of issues, I am done with this contractor and don't want to bring them in again. I pretty competent with plumbing and would like to do this myself and be done with it. My question is whether this will fix the problem and, if it will, where does it go within the system? What part am I specifically asking for when I stop into my local plumbing supply house (the pipes are copper)?

Thanks for any help anyone can offer.

Ron Schroeder

Andrew

can you post some digital pics of the boiler and piping 1 pic worth a thousand words.

Weezbo

if you have a scanner, and a polaroid camera...

you could scan a copy yo your desk top then add it in to the post under edit at the bottom of the edit page is the word attachments. then the supply return and the mixing system for the radiant can be seen,....that like Bruce says would speak volumes to most of the willing here and it would be easier to give you a prescription...sans that you have only describe half of the picture and that makes helping a bit tedious...