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ACME1 Member Posts: 1
question? Can insulating 1 pipe steam mains result in hammering or make existing hammering worse?"


  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,422

    are you talking about the main pipes  hammering?

    the water-hammer is caused no doubt by trapped condensate, picking up bubbles of steam; which then collapse with great force of sudden vacuum.

    check the pitch of your main pipes, to make sure they all drain without allowing water to collect in pools in low spots.

    check your pressure to make sure it has not suddenly become high because of a clogged pigtail.

    is your waterline steady and clean? do you have a copy of "the lost art of steam heating", available here in the shop? water-hammer causes are more thoroughly explained by dan than i can!--nbc
  • JStar
    JStar Member Posts: 2,752

    I would say that insulation will help eliminate some water hammer in the mains, but it could make water hammer appear in any piping that isn't insulated, if you only insulated the main.
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