Expansion vessel hose

[Matt0029]

The cylinder is an rmc group cylinder if anyone has heard of these. I tested the pressure after the pressure reducing valve to be around 3.5 bar but the system was ok. Well the cylinder was warm.

 

[Matt0029]

So the pressure relief shouldnt really be operating.

 

[ShaunCorbs]

Eg

https://www.advancedwater.co.uk/product/caleffi-push-fit-o-ring-pressure-relief-valve-6-bar-15mm-312007cst

 

[John.g]

Having read lots of posts regarding unvented cylinder problems I have never heard of one that has a installed pressure gauge, seems a bit strange?.

 

[Chuck]

Having read lots of posts regarding unvented cylinder problems I have never heard of one that has a installed pressure gauge, seems a bit strange?.

It's a DHW system, not a nuclear reactor! If a pressure measurement is needed for some reason it's easy to attach a temporary test gauge to a HW outlet. Also, you need to be careful adding permanent pressure gauges as it's easy to create blinds (dead legs) in the process.