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expansion vessel with flexi hose?

Discussion in 'Plumbing and Central Heating' started by sammy1990, 23 Jan 2015.

  1. sammy1990

    sammy1990

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    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!
     
  2. gigz

    gigz

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    Yes, but it needs to be capable of high temps.
     
  3. sammy1990

    sammy1990

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    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?
     
  4. gigz

    gigz

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

    oldbuffer

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    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).
     
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