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Vacuum pump hi temps

Burim Regjaj
Burim Regjaj Member Posts: 2
in THE MAIN WALL
The vacuum pump in the two-pipe heating system stays always hot (above 160'F). I've changed most of the steam traps by the radiators. I've cleaned the traps at the end of the return lines. Water hammering is still a problem in certain apt's although I've changed the steam traps. The temp in vacuum pump stays high, sometimes up to 200'F. What else I need to do?

Comments

  • Tim_15
    Tim_15 Member Posts: 8


    Is the return piping insulated? If it is..Remove some of the insulation or you could put some fin tubing radiation in the return line.
  • Burim Regjaj
    Burim Regjaj Member Posts: 2
    what's fin tubing radiation

    What's fin tubing radiation? and the return lines are insulated only for a small part.
  • Tim_15
    Tim_15 Member Posts: 8


    The same type that is used for hot-water baseboard..But in the past I have used 1 1/4 steel fin tubing.
  • Unknown
    Unknown Member
    You still have a leaking trap.

    I've put in brand new ones, and had them be a little crooked under the cap, and they blow right through.

    That's too high for all good traps.

    Noel
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