Popped new expansion vessel

[woodsy]

Went to a job yesterday on a Biasi with a leak which turned out to be the expansion vessel. Ordered a new one, fitted it and started to fill and the new one popped too which freaked me out. Prv appears to be lifting which was my first thought but just wondering if anyone has had this before and if so, what was the reason.

 

[woodsy]

Sorry, posted in the wrong section if one of the mods can move it.

 

[Dotty]

Moved.

Did you check the vessel pressure before you fitted it?

 

[woodsy]

Confession, of no but would of thought that the prv would of lifted first anyway ?

 

[woodsy]

Well went back today with a replacement vessel. Like a shi@@ing dog opening the filling loop but filled up ok, and all working . Hopefully, must of just been a faulty vessel.

 

[gassafe]

Well went back today with a replacement vessel. Like a shi@@ing dog opening the filling loop but filled up ok, and all working . Hopefully, must of just been a faulty vessel.

Bet you tested the vessel pressure just in case this time ;p

 

[Last Plumber]

I know this is slightly off subject but yes, I had one burst open big time. As in burst the metal too. Did yours or was it the diaphragm/bag inside that you're talking about ? This one flooded a commercial laundry.

 

[woodsy]

No the actual metal seam at the side of the schrader valve split .

 

[Last Plumber]

Ah !
Got to be a manufacturing flaw don't you think.
I will find my pics of the exploding vessel later and start a new thread, see who's was most spectacular lol.
At first the manufacturers said it was installed wrong ( NOT BY ME I HASTEN TO ADD).
After a short debate they organised a new one via merchant and paid my invoice for
replacing it !

 

[AWheating]

I had one pop this year when flushing a new system, I had boiler valves off and filling loop open. Water main was over 6bar and I must of over pressurised it.