Standards for Closed Feedwater Heaters - 8th Edition
The eighth edition of these standards has been developed by the Closed Feedwater Heater Section of the Heat Exchange Institute, Inc. The technical information in these standards combines present industry standards, typical Purchaser requirements, and Manufacturer’s experience. In addition, the standards outline the important design criteria for closed feedwater heaters. These standards provide practical information on nomenclature, dimensions, testing, and performance. Use of the standards will ensure a minimum of misunderstanding between Manufacturer and Purchaser, and will assist in the proper selection of equipment best suited to the requirements of the application.
Some of the new material incorporated into the eighth edition of these standards include new information on drains and vents for heaters. A new schematic piping arrangement for feedwater heaters has been added as well. Variables and values in Paragraph 3.14.3, Sample Problem for Determining Resultant Force and Moment, have been revised. A revised Fig. No. 11a & 11b, Standard Tolerances for Nozzle and Support Locations, has been included. Information on high pressure, full access channels has been added as Paragraph 8.1.2, accompanied by a new drawing.
In preparation of this standard, consideration has been given to the work of other organizations, such as the American Society of Mechanical Engineers, the American Society of Testing Materials, the former Feedwater Heater Manufacturers Association, the Tubular Exchanger Manufacturers Association, and others. Credit is hereby given to all those whose standards may have been helpful in this work.
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