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 : AUG 1971

Pagination or Media Count : 71

Abstract : The report documents testing conducted to establish a seat and poppet material and/or 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 sapphire/copper 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 helium/hour 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 & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE