Abstract
Originally the Drain Orifice Assembly was developed to solve serious steam trap maintenance problems in Navy ship's high pressure systems. Installation was between two ANSI B16.5 Flanges. The high pressure systems operate at pressures between 150 psig and 1200 psig. Based on the initial test results, a program was adopted by the U.S. Navy to replace all conventional steam traps with the Drain Orifice in all high pressure drain systems on ships in the U.S. Fleet.
Guzick, L. L. (1979). Condensate Removal by Drain Orifice. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from
https : / /hdl .handle .net /1969 .1 /93825.