Accession Number:

AD0815562

Title:

DISCONNECT COUPLING DESIGN CRITERIA FOR FLUORINE CONTAINING OXIDIZERS

Descriptive Note:

Final rept. 1 Jul 1965-15 Apr 1967

Corporate Author:

DOUGLAS AIRCRAFT CO INC SANTA MONICA CA MISSILE AND SPACE SYSTEMS DIV

Personal Author(s):

Report Date:

1967-06-01

Pagination or Media Count:

488.0

Abstract:

This report documents the results of a study conducted to define criteria for quick disconnect QD couplings for use with fluorine and fluorine containing oxidizers. For this study a number of vehicle systems were examined to determine the fundamental requirements for couplings. Identified are the requirements imposed on a typical upper stage oxidizer fill-and-drain QD by vehicle and AGE considerations, and disconnect technology capabilities. It was determined that the coupling should remain connected until vehicle launch is committed, and that the coupling should not provide oxidizer flow control or fluid shutoff provisions. Design development and criteria demonstration tests were conducted using both liquid nitrogen and liquid fluorine on two test model QDs during the Phase II portion of this study. Specifically studied were the parameters influencing leakage, connectdisconnect, the draining and purging of fluorine, and compatibility. A detail specification was prepared along with detail drawings for a prototype QD coupling based on the criteria of Phase I and the test results of Phase II. One prototype QD was fabricated and acceptance tested prior to delivery as a part of this contract. The criteria established has been demonstrated by design, fabrication, and testing of a fluorine QD. The primary conclusion resulting from this program is that the design criteria established have provided a quick disconnect that is capable of servicing vehicles utilizing liquid fluorine.

Subject Categories:

  • Couplers, Fasteners and Joints

Distribution Statement:

APPROVED FOR PUBLIC RELEASE