08/10 Challenge Pressure powered pumps rely on high-pressure motive steam to pump hot condensate from the receiver tanks. If there is a loss of motive steam pressure, hot condensate will overflow from the tank to a drain or flood steam-using equipment (such as shell and tube heat exchangers, unit heaters, humidifiers, and other process equipment), resulting in a loss of energy and performance. Solution The installation of a dual motive station allows two different motive sources to be piped to the pump. Steam is normally the primary motive source and compressed air is the alternate or back-up motive source. The compressed air system is generally a very reliable backup source, because it is used to operate control valves and machinery. Results When the motive

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