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Caleffi pressure reducing valve

D

Dan Main

Feb 7, 2019
3
0
1
Member Type
DIY or Homeowner
I have a caleffi valve on my system. It has worked well for some 10 years. Recently I noticed it is not regulating, with no flow sits at mains pressure. With flow it regulates. Replaced cartridge but just the same. It is a Caleffi 5350, i.e a static regulator. Any ideas as to why performance has changed?
 

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