NASA, Johnson Space Center, BE2, Houston, TX

18 -- TWO PHASE PUMP ASSEMBLY (TPPA) REQUIREMENTS SOL 9BE4-01-450P DUE 021395 POC Request solicitation from BD35 /Bid Board, phone 713-483-4511. Contact:STEPHANIE HUNTER, Tel:713-483-8523 Contracting Officer: LISA REA, Tel:713-483-8395 The Two Phase Pump Assembly (TPPA) Requirements. This procurement will b e conducted using Mid-Range Procurement Procedures. Information regardin g the Mid-Range Procurement Procedures will be included in the solicitati on package. --N/A --The two phase pump assembly (TPPA) to be purchased shall utilize R-134 as its working fluid, shall operate with an inlet quality range of 0-100%, shall be capable of providing separate liquid and vapor flow streams. The vapor flow shall be 0-700 lbm/hr and liquid flow at 0-450 lbm/hr at no less than 12 psid head rise. The TPPA shall have a maximum operating pressure of 200 psi, shall have a proof pressure 300 of (+5,-0) psid and shall have a burst pressure of 800 (+10,-0) psid. The materials (both mettallic and non-metallic) selected for the TPPA shall be from from MSFC-HDBK-527 or shall be submitted to NASA for approv al. The TPPA power shall not exceed 750 Watts maximum, and the TPPA shal l operate with power supplied at 28 volts DC. The motor of the TPPA shal l be a brushless DC motor. The assembly shall be vacuum compatible to a pressure of 1E-10 torr. The operational temperature range is 35 degrees F to 105 degrees F, and the non-operational temperature range is -65 degr ees F to 160 degrees F. The TPPA's maximum allowable leakage is 1e-3 standard cc's per second (sccs), and the TPPA shall be fabricated and maintained with a cleanliness level of visibly clean according to SN-C-0005. The dry weight of the TPPA shall not exceed 100 lbs. The operational lifetime of the TPPA shal l be 750 hours minimum, and it shall be capable of operating to the speci fied requirements after exposure to launch and orbital environments. The TPPA shall be designed to withstand the combined low-and high-frequency a ccelerations. The manner in which the high-frequency accelerations are c ombined with low frequecy accelerations shall be in accordance with NASA TM-86538. Verification shall be by analysis. The TPPA shall be exposed to a minimum of 2 cycles of launch environments during its certification and usage. The vendor may specify to NASA the preferred orientation of t he pump relative to the accelerations and vibrations specified herein. --N/A --As set forth in the description section of this CBD announcement --As set forth in the specification section of this CBD announcement. --1 Two-Phase Pump Assembly --Lyndon B. Johnson Space Center, NASA Road 1, Houston, Texas 77058 --To support a 1997 launch the delivery schedule for the Two-Phase Pump is as follows: 1) detailed final design drawing package for the TPPA by May 1, 1995. and 2) delivery of flight unit by August 1, 1995. --N/A --N/A --N/A --N/A --As set forth in specification section of this CBD announcement (0034)

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