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circ pumps circulators

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creger.robert
creger.robert Member Posts: 38
in Strictly Steam
b & g series 60 in-line pumps
differential across pumps is 10-15
one pump is 40-45 what is causing higher differential

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  • ScottSecor
    ScottSecor Member Posts: 856
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    Higher pressure differential equals more restriction/ head.  

    In other words the pump with the bigger difference on pressure is working harder to move the water.  Most often this is due to a longer run, more restrictions,  etc
  • bburd
    bburd Member Posts: 917
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    Or partially closed valves.
    —
    Bburd
  • hot_rod
    hot_rod Member Posts: 22,157
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    Plugged strainers
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream

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