Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Radiator coinnection leaks

Sandy255
Sandy255 Posts: 1
in THE MAIN WALL
I have replaced an old (c. 1920) coal/oil boiler with a new high efficiency gas boiler.  Works beautifully but I now have small leaks from several column radiators where they connect to the valves. Tightening the nut does not completely solve the problem.



One radiator has been an historic problem: when I first disconnected the radiator about twenty years ago I noticed that one of the "dead guys" had sealed the fitting under the nut with some sort of packing.  I used new packing and (rarely) had a problem - until now.  I've tried graphite valve packing and various plumber's sealing compounds - even waterproof silicone.  The water still runs out.  Suggestions please.

Comments

  • Unknown
    Unknown
    Leaks

    Is this a steam or a hot water system?  It might help it you could post a picture of the leaking connection.

    - Rod
  • Big Ed_4
    Big Ed_4 Member Posts: 3,134
    Union Connection

    Clean the old union contact surface with steal wool , then dab just a little plumbers grease on the contact surface area to make up and imperfectionTry not to get any grease into the system ....

    There was an error rendering this rich post.

This discussion has been closed.

Categories