Question for the installers: What is the mains working pressure on an OSO unvented cylinder? I know that the HS Megaflow combi valve reduces pressure to 3 bar, is the OSO the same?
Whatever it says on the regulating valve!
According to the specs for the '20 Series', max working pressure for the cylinder is 8 Bar. Yours may be a different model. Why's it an issue, anyway? I can't imagine why you'd want pressure at the taps to be more than 3 Bar.
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