Water Hammer, Freezing

Every homeowner in cold climates is aware of the devastation associated with frozen pipes. In a steam system, the same occurrence can lead to equally serious consequences.

		Gravity Condensate usually moves through a system by gravity. It collects in low areas.
		Radiated Heat When condensate is moving slowly or is still, heat will move rapidly toward subfreezing air until the temperatures equalize and the condensate freezes.
		Blockage As water freezes, it expands, obstructing more of the condensate flow path and accumulating more condensate. Eventually the piping or heat exchanger becomes blocked. In severe situations, pressure from the expanding, freezing condensate can burst the equipment housing it.

		To see a synopsis for the video "Guidelines for Freeze Prevention," click here.
		To see a synopsis for the video "Freeze Prevention in Steam / Air Coils," click here.