This is a special design report submitted in partial fulfillment of Contract NAS 9-8317, the Bipropellant Valve improvement Program. The object of the report is to compile the results of the program studies emphasizing the application of these results to valves in general.nIt has been found at Aerojet that the specific application requirements as well as basic design characteristics of various valve types control the design of valves. For this reason it would be impossible to compile in any one document a step-by-step guide which would satisfy any and all design requirements. Consequently, the approach taken herein has been to discuss design goals and requirements from a general viewpoint with the objective of familiarizing the reader with a method of approach and common practices. Included are: (1) generalized propellant valve design criteria along with recommended practices, (2) discussion of commonly encountered practical development problems, effects on design and recommendations for solutions, (3) a review of experience in propellant valve design, manufacturing and test, and (4) a discussion of tradeoff analysis along with the tradeoff analysis conducted as a part of the bipropellant valve improvement program. The general discussion is supported by a complete list of references and a bibliography.
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