material boiler couplings

Discussion in 'Boiler Forum' started by netmouse, Oct 8, 2013.

  1. netmouse

    netmouse Member

    Joined:
    Aug 7, 2012
    Location:
    NJ
    Does it matter if Burnham has cast iron couplings/nipples, and Peerless has steel?

    With cold start the norm for boilers now, just looking if one is better assurance at preventing leakage. Burnham gives a lifetime nipple leakage warranty. But is either really OK? I know the old rubber type gaskets were the issue, really, right?
     

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