Testing Medium Unless otherwise indicated the testing medium shall be dry GHe or dry GN2 (or NASA approved equivalent) with a dewpoint at or below 0oC. The gas must be filtered through a 25 micron absolute rated filter (or better) prior to entering the test unit. Burst Test (First Article only) A past unit of the same model (historical record) or the first qualification unit shall be tested per AIAA S-080. Alternative qualification requires NASA Engineering approval. This test shall be performed after all other acceptance testing is complete. Leak Test Each pump shall be external leak proof tested per AIAA S-080. Note: based on materials utilized and test temperature of fluid, the pressure test level may need to be adjusted for consideration of decreased material properties at elevated temperatures. Output Test The pump shall be tested at full power to measure the pump throughput (flow rate). The test shall be run from the minimum supply inlet pressure to 600 psig with no less than 4 intermediate pressures that are approximately equally spaced. The flow rates measured as well as the measurements corrected for the working fluid (Xenon) shall be provided. This test shall be conducted twice, once with a regulated discharge tank pressure of 600psig and repeated with a regulated discharge tank pressure of 1200 psig. Power Test The pump power draw shall be measured during the conduction of the test above (4.1.5) to assure the pump power does not exceed the maximum power capacity per 3.2.2.6 at any time. Bellows Cycle Test Definition of one pressure cycle Maintain 1.0 x MEOP, using media, inside bellows throughout test. Energize/de-energize electric actuator sufficiently to compress bellows to lower stop. Energize/de-energize electric actuator sufficiently to extend bellows to forward stop.
Testing Medium Unless otherwise indicated the testing medium shall be dry GHe or dry GN2 (or NASA approved equivalent) with a dewpoint at or below 0oC. The gas must be filtered through a 25 micron absolute rated filter (or better) prior to entering the test unit. Burst Test (First Article only) A past unit of the same model (historical record) or the first qualification unit shall be tested per AIAA S-080. Alternative qualification requires NASA Engineering approval. This test shall be performed after all other acceptance testing is complete. Leak Test Each pump shall be external leak proof tested per AIAA S-080. Note: based on materials utilized and test temperature of fluid, the pressure test level may need to be adjusted for consideration of decreased material properties at elevated temperatures. Output Test The pump shall be tested at full power to measure the pump throughput (flow rate). The test shall be run from the minimum supply inlet pressure to 600 psig with no less than 4 intermediate pressures that are approximately equally spaced. The flow rates measured as well as the measurements corrected for the working fluid (Xenon) shall be provided. This test shall be conducted twice, once with a regulated discharge tank pressure of 600psig and repeated with a regulated discharge tank pressure of 1200 psig. Power Test The pump power draw shall be measured during the conduction of the test above (4.1.5) to assure the pump power does not exceed the maximum power capacity per 3.2.2.6 at any time. Bellows Cycle Test Definition of one pressure cycle Maintain 1.0 x MEOP, using media, inside bellows throughout test. Energize/de-energize electric actuator sufficiently to compress bellows to lower stop. Energize/de-energize electric actuator sufficiently to extend bellows to forward stop.
161854-SOL-001-003.docx