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Baxi HT330 fitting Question

Scott M_3Scott M_3 Member Posts: 32
in Gas Heating
Hi everyone. I have a Baxi HT330 and I need to disconnect and replace the copper elbow connected to the valve with the blue handle in the picture I'm uploading. Because of work I'm doing I cant reuse the elbow and need to connect a straight piece of copper tubing to the valve. Does anyone know if I can use a simple 3\4" copper union or a female copper fitting to connect to the valve or do I need a special size fitting with a washer? I know this is probably a basic question but I would like to know for sure before I try to use the wrong fitting and screw up the threads on the valve. Thanks for the help. Scott
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Comments

  • SWEISWEI Member Posts: 7,356
    That's a custom tailpiece. Safest thing would be to cut it just before the bend and sweat (or press) on a reducing coupler.
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  • hot_rodhot_rod Member Posts: 13,198
    It looks like what we call a 1" G thread, a straight thread, basically.
    Kurt has the right idea to reuse the flared end. Clean both surfaces and use a new fiber or EPDM gasket.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    The magic is in hydronics, and hydronics is in me
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  • SWEISWEI Member Posts: 7,356
    If it actually is a G union, you could buy a Caleffi tailpiece for it :D
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  • Scott M_3Scott M_3 Member Posts: 32
    Thanks for the help. I really appreciate it.
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