Accession Number:

AD0730275

Title:

Cycle Testing of ACS Valves in CLF5.

Descriptive Note:

Technical rept. Apr 70-Dec 71,

Corporate Author:

AIR FORCE ROCKET PROPULSION LAB EDWARDS AFB CALIF

Personal Author(s):

• Gunderson,Garreth J.

Report Date:

1971-08-01

Pagination or Media Count:

71.0

Abstract:

The report documents testing conducted to establish a seat and poppet material andor sealing concept for use in chlorine pentafluoride ClF5 attitude control system ACS valves. Test results of nickel-, iron-, tungsten-, and zirconium-based materials in the flat-on-falt sealing concept as well as a sapphirecopper lip-seal concept are discussed. In tests conducted to date, two varieties of tungsten carbide in the flat-on-flat configuration Kennametal 96 and Kennametal 801 are the only materials that have met the leakage requirement of 30 scc heliumhour after 100,000 actuations in ClF5. Author

Descriptors:

• (*VALVES
• *LIQUID ROCKET PROPELLANTS)
• (*ATTITUDE CONTROL SYSTEMS
• VALVES)
• TUNGSTEN COMPOUNDS
• CARBIDES
• COMPATIBILITY
• CHLORINE COMPOUNDS
• FLUORIDES
• LEAKAGE(FLUID)
• MATERIALS

Subject Categories:

• Aircraft
• Pumps, Filters, Pipes, Tubing, Fittings and Valves

Distribution Statement:

APPROVED FOR PUBLIC RELEASE