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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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PRV in cold supply
I am going to have to fit a PRV in the cold supply for the benefit of a
new thermostatic shower mixer (max allowed pressure 5 Bar) current cold pressure 7.5 bar and hot pressure regulated to 3 bar by a pressurised hot water system. If I do this, do I also have to fit a mini expansion vessel (as in 0.5 or 1lt - like the one linked below) into the cold supply? https://www.advancedwater.co.uk/prod-775-147-0006.html As I see it the water that has just entered the house at 3 or 5 C will go through the PRV and be reduced to 3 bar. It may sit in the cold feed pipe for some hours and warm up to say 20C. How is this expansion accommodated? -- Chris B (News) |
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