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differential pressure by pass valve

Dave Gulbranson
Dave Gulbranson Member Posts: 10
in THE MAIN WALL
Say that five times fast. My wholesaler says he's heard of them but doesn't have any in stock. Who makes them? Anyone besides Honeywell. Also - who makes the circs. with the internal flow check and how much do they cost? I've been looking at Mr. Siegenthallers Munchkin drawings If you haven't guessed already.These are a couple things I'd like to add to my Munchkin jobs. What size piping for the DPBV on a 1 1/4" system loop. That's all for now.

Comments

  • Paul Rohrs_2
    Paul Rohrs_2 Member Posts: 171
    PDBV

    Wirsbo can supply them, I believe Danfoss makes them.
    http://distributor.wirsbo.com/OnlineDocs/pdf/DiffBypassValve.pdf

    PR
  • hot_rod
    hot_rod Member Posts: 23,775
    Pumps and such

    My current favorite ids the Grundfos super brute. Intergral check, 3 speed, 3 year warranty. A nice well rounder pump.

    Danfoss, Oventrop, and Honeywell are the brands of PAB's I have used. All should have websites to direct you to dealers. RTI has a couple in their radiant catalog also. Size them by flow rates niot pipe size :)

    hot rod
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
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