Whether steam is generated in-plant or purchased from a utility, the efficient use of its heat requires effective and reliable control. Spirax Sarco shares steam tips in its e-newsletter to help users of steam systems achieve effective control.

In a recent edition, Spirax Sarco explained how a pressure-and-temperature regulator can save a facility thousands of dollars in steam costs each year by allowing the most heat to be transferred from each pound of steam. Regulators also help prevent waste and overheating from lowering plant productivity. While many valves operate in fully open or tightly closed mode, a modulating pressure-and-temperature regulator will enable the system’s equipment to function more efficiently by adjusting itself to each pressure or temperature requirement.

To obtain a lower steam pressure downstream than that which is supplied calls for a pressure-reducing valve. This device holds the reduced pressure constant whether the demand load requires little or no steam, or its maximum flow. A back-pressure regulator opens when the upstream pressure increases beyond its setpoint. It can relieve excess steam from a flash vessel or it can shut down the supply to less essential steam equipment at times of peak demand. Finally, the valve may be required to vary the steam flow to maintain a constant temperature in the process itself. Temperature regulators are used most frequently to control air or water temperature.

Be sure to select control valves according to the different types of control functions they are required to perform.

To learn more about how Spirax Sarco, Blythwood, S.C., can help you save steam and increase productivity in your plant, visit www.spiraxsarco.com/us.

Links