Dahlgren Division, Naval Surface Warfare Center, 17320 Dahlgren Road, Dahlgren, VA 22448-5100

36 -- CENTRIFUGAL COMPRESSOR ROTOR INSPECTION SOL N00178-97-Q-0065 DUE 052397 POC Myrtis Josey 540-653-4704 E-MAIL: Naval Surface Warfare Center, Dahlgren Division, mjosey@nswc.navy.mil. The Naval Surface Warfare Center, Dahlgren Division (NSWCDD), Dahlgren, VA is seeking sources for centrifugal compressor rotor inspection. The compressor is a Clark model #6M4 machine located in Building 403 at Naval Surface Warfare Center, White Oak (NSWCWO), Silver Spring, MD. The work outlined below is divided into the three areas of disassembly and reassembly work is to be performed by the contractor at NSWCWO. For compressor disassembly, the contractor shall: (a) provide the necessary personnel with the necessary tools for the compressor disassembly. (b) disassemble and remove compressor upper casing and bearing caps. (c) remove compressor rotor and prepare rotor for shipment on Government supplied cradle/skid. (d) visually inspect and clean compressor casing and components. (e) ship or deliver rotor to contractor's shop site. The Government (NSWCWO staff) shall provide and operate Building 403 bridge crane, provide and install compressor casing and rotor rigging equipment, and provide rotor shipping. For rotor inspection at the shop site, the contractor shall: (a) receive rotor, visually inspect, degauss, and photograph the rotor. Record all data. (b) clean rotor with steam or glass bead. (c) perform complete NDT inspection of entire rotor assembly using dye-penetrant, ultrasonic-pulse echo, eddy-current, or magnetic particle techniques. Record the results of the NDT inspections. (d) perform dimensional and TIR inspections of the complete rotor inspection. Record the results of the inspections. (e) perform ERO check of probe areas. Record the results. The Government is not requiring that the rotor be disassembled unless the rotor inspection indicates that further investigation or repair is needed. The contractor shall not include rotor disassembly costs in their response to the statement of work (SOW). The contractor shall list rotor disassembly, inspection, and reassembly cost as a separate line item. (f) provide rotor disassembly, inspection, and reassembly proposal and cost estimate if initial inspection shows that rotor disassembly is needed. (g) prepare and submit complete engineering inspection report. The report shall document all measurements, inspections, tests and results. The report shall also include a complete breakdown of any repairs (if required) to get equipment operating according to original manufacturer's specifications. For compressor reassembly, the contractor shall: (a) ship or deliver rotor to NSWCWO Building 403. (b) provide the necessary personnel with the necessary tools for the compressor reassembly. (c) install compressor rotor. Check and record journal, thrust, and labyrinth seal clearances. (d) install journal bearing caps and compressor upper casing. (d) monitor compressor startup and operation during post-inspection test. The Government (NSWCWO) staff shall provide and operate Building 403 bridge crane, provide and remove compressor casing and rotor rigging equipment, provide personnel to operate compressor for post-inspection test, and provide personnel to record vibration data during post-inspection test. Required Contractor Qualifications for Centrifugal Compressor Rotor Inspection. The qualifications are necessary in order to insure quality work to the Government. The minimum experience and capability requirements for contractors interested in bidding on the compressor rotor inspection are as follows: (a) the contractor must have demonstrated previous experience with Clark centrifugal compressors. (b) the contractor must have demonstrated inspection and repair experience with riveted type rotors and impeller wheels. (c) the contractor shall have NDT inspection personnel who are qualified to SNT-TC-1A Level III in the dye penetrant and ultrasonic-pulse echo techniques. (d) the contractor's facility shall have the equipment and capability for recentrifugating rotors and for conducting rotor dynamic balancing. (e) the quality of the contractor's centrifugal compressor service operation shall be certified to ISO 9001:1994 (commercial std). (f) the contractor shall be able to provide certification of Level III Society of National Testing of personnel who would provide repair (if required) on the equipment. (g) all persons working on the equipment should be able to provide documentation of at least 8-10 years experience on Clark model 6M4 equipment. Award is to be made utilizing Simplified Acquisition Procedures. THE GOVERNMENT WILL NOT ISSUE A WRITTEN SOLICITATION DUE TO THE FACT THAT ALL INFORMATION IS STATED HEREIN. All responsible sources shall mail/fax their quotes and qualifications which shall be considered by the Naval Surface Warfare Center, Dahlgren Division, Dahlgren, VA 22448. Fax number is 540-653-2958, Attn: Myrtis Josey, Code SD18. Closing date for quotes is 23 May 1997. Anticipate award by 2 June 1997 with tentative start date 21 July 1997. Actual start date shall be agreed upon not later than 30 days before start of work is required. (0120)

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