Rebuilding Hot Water Radiators

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    • #275435
      avlombardi

      I am disassembling three cracked radiators to make one good one. What kind of sealing material should I use at the sleeves? Right now there is something on them which is the color of orange RTV sealant. I was going to use pipe joint compound. Will that be sufficient?

    • #292080
      SylvanLMP
      Participant


      In reply to message posted by Douglas Tedeschi:
      I am disassembling three cracked radiators to make one good one. What kind of sealing material should I use at the sleeves? Right now there is something on them which is the color of orange RTV sealant. I was going to use pipe joint compound. Will that be sufficient?


      Normally the steel push nipples need nothing more then lubricant for water/steam tight integrity.

      You can use blue block or other type of compounds

      The key is to make sure you have an equal made up push nipple on both ends of the cast Iron sections

      Point of information

      By the way if this is the same job your using copper tubing and copper fin for, LOTS OF LUCK trying to balancing out this system

    • #292081
      fourth year
      Participant

      we always tried to use new push nipples since the process of assembling the boiler or radiator compresses the nipple and if the new port is not exactly the same as the one the nipple came out of it may slide all the way in without sealing. We used pipe dope as a lubricant which gives an additional layer of protection against minor leaking.

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