expansion vessel with flexi hose?

[sammy1990]

Hi, hoping for some advice. I want to connect an expansion vessel to my sealed central heating system, as expansion vessel on boiler has gone.

I will tee into the return pipe near the boiler using a compression tee.

What i am unsure about is can i connect the expamsion vessel to this tee using flexi tap connector hose? Or must it be connected using copper?

Thanks in advance!

 

[gigz]

Yes, but it needs to be capable of high temps.

 

[sammy1990]

Thanks! Could you recommend one thats suitable? All the ones ive seen say suitable for 15bar pressure and max temp 70c, would these be ok?

 

[gigz]

Should be ok on the return, flow temp is about 82 ish degrees.

 

[oldbuffer]

Make sure that it is good for 3 bar (minimum) AT 70 degrees (minimum). Some flexis might be good for, say 10 bar at 40, but only 2 bar at 60. To be safe and allow for fault conditions go for 4 bar at 80 degrees if you can get one.

Could be done in copper. If you're not comfortable with soldering, use compression T and elbows as necessary. Then no worries about temperature or pressure (within reason).