NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135

48 -- CONTROL VALVE (RE-ADVERTISED) SOL RFQ3-124883 DUE 072099 POC Jon C. Schultz, Contract Specialist, Phone (216) 433-2764, Fax (216) 433-2480, Email Jon.C.Schultz@grc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GRC/date.html#RFQ3-124883. E-MAIL: Jon C. Schultz, Jon.C.Schultz@grc.nasa.gov. This notice is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a written solicitation will not be issued. This procurement is being re-advertised as no technically acceptable offers were originally received. A longer response time has been added. The procurement is being conducted under Simplified Acquisition Procedures (SAP). Requirement is for 1 each 4 inch control valve with electro-hydraulic actuator for use in 450 psig air system at 600 degree F. per the following specifications: VALVE PERFORMANCE AND PHYSICAL SPECIFICATIONS 1. The valve shall be a 4 inch control valve with a carbon steel body and an electro-hydraulic actuator to replace an existing valve in existing piping. 2. Valve shall be rated, as a minimum,for service with 450 psig air at 600 degrees F. Dimension from flange face to flange face shall be 14.5 inch. Flanges shall be 4 inch class 300 ANSI flanges with raised face. Flanges shall be seperable flanges to facilitate installation. Valve shall have Class IV seat leakage. 3. Valve trim shall be linear and have a full open Cv greater than 150 with LO-DB trim. 4. The actuator shall consist of a hydraulic cylinder, an electro-hydraulic servovalve, a position feedback assembly, and all brackets, tubing, electrical connectors, etc. necessary for a complete valve and actuator assembly. 5. The actuator shall be mounted to the valve with a bonnet to limit the actuator temperature to 150 degrees F. due to heat radiated by the valve body or conducted through the bonnet and plug. 7. The actuator shall be capable of stroking the valve from full open to closed and closed to full open in less than 1 second when operating with 1000 psig hydraulic pressure against a full 450 psi air pressure differential. 8. The actuator shall have a working pressure of 3000 psig and be capable of operating the valve at this pressure. 9. The valve shall fail closed upon loss of electrical signal to the servovalve. 10. The valve shall have, a nominal 120 VAC SPDT limit switches to indicate full open and full closed position. 11. The completed valve-actuator assembly shall be adjusted, limits set, and functionally tested before shipment to the Government. 12. A nameplate shall be permanently attached to the actuator showing manufacturer, model number, serial number and NASA contract number. HYDRAULIC CYLINDER 1. The cylinder shall be double rod end type with an equal area on each side of the piston and shall be sized to meet the valve force requirements. 2. The cylinder shall provide full valve travel. 3. The actuator shall be for use with Mobil DTE medium turbine oil at 3000 psig maximum. 4. The actuator shall be shipped with open hydraulic cylinder ports plugged to prevent contamination. 5. The actuator external leakage shall be zero. 6. The leakage across the hydraulic piston shall not exceed 2 cm3/hour with 3000 psi pressure difference across the piston. 7. Hydraulic connections shall be in accordance with AND 10050 revision 19, dated 7/24/84. 8. All hydraulic fittings and tubing wetted by the hydraulic fluid shall be 300 series stainless steel or anodized aluminum. Final connections to unit shall be 37.5 degree A+N flared fittings. 9. The maximum static or break away friction force of the hydraulic piston shall not exceed 20 pounds. ELECTRO-HYDRAULIC SERVOVALVE 1. Shall be a 2-stage, 4-way modulating servovalve. 2. First stage leakage shall be 0.75 cubic inches per second maximum at 3000 psig supply. 3. First stage shall have integral 40 micron hydraulic filter. 4. Internal leakage shall not exceed 17% for 1 gpm servovalve, 9% for a 2.5 gpm servovalve, and 7% for a 5 gpm or larger servovalve with 1000 psig supply pressure. 5. External leakage shall be zero. 6. Fluid and ambient temperature range shall be -40 degrees F. to 275 degrees F. 7. Shall be suitable for use with DTE medium turbine oil. Performance shallnot be affected when cleanliness is maintained to NAS 1638 class 5 level. 8. Rated servovalve flow at 1000 psid shall full stroke control valve in 1 second or less. 9. Rated differential input current shall be+/- 15 milliamperes d.c. for parallel coils. 10. Servovalve shall have 2 armature coils, and the electrical resistance of each coil shall be 200 ohms +/-20 ohms. 11. Servovalve shall have a 4-pin male Bendix or Amphenol electrical receptacle. Servovalve shall be supplied complete with mating electrical connector. 12. Resolution shall be 0.5% maximum of rated current. 13. Hysteresis shall be 3% maximum rated current. 14. Servovalve shall be suitable for either series or parallel coil connection. 15. Frequency response: The ratio of load flow to +/- 100% of rated sinusoidal input current with zero load pressure shall drop down 3 db maximum at 100 Hz. and 90 degree phase shift for a 5 gpm servovalve or smaller and 40 Hz for a 10 gpm servovalve. Resonant peaks shall be less than + 2 db. 16. Shall be able tomechanically adjust the flow null of the servovlave by +/- 20% minimum. Mechanical null shall not drift over time or due to temperature change. 17. The servovalve shall be a Moog 73 Series or meet the above criteria. POSITION FEEDBACK ASSEMBLY 1. The position feed back shall be provided by a linear variable differential transducer (LVDT). The LVDT shall be a SCHAEVITZ type HR or equal type with the following specifications: Input Voltage: 3 volts RMS; Freq. Range: 400-5,000 Hz.; Operating Temperature: -65 degrees F. to 300 degrees F.; Null Voltage: Less than 0.5% full scale output; Lead Wires: 28 AWG, 12 inches long. 2. The position feedback mounting bracket shall provide zero deflection under all valve operation conditions. 3. The position feedback shaft shall be aligned to prevent excessive loading of the shaft. 4. The mechanical travel of the feedback assembly shall be at least 110% of the full valve travel. 5. The linearity shall be +/- 0.25% at 2.5 KHz.. 6. The ambient temperature range shall be 0 degrees F. to 150 degrees F. minimum. SUBMITTALS 1. Within 21 days after award-of-contract the contractor shall submit for approval an outline drawing of the valve-actuator assembly showing overall dimensions and identifying all components. An electrical wiring diagram shall be included. DOCUMENTATION 1. Documentation to be delivered with the completed valve-actuator assembly shall include a mechanical drawing with overall dimensions for the assembly, and manuals for the servovalve, position feedback transducer, hydraulic cylinder, limit switches and valve. Included in the manuals, as a minimum, shall be descriptive information showing an assembled picture of each component and how it operates, and electrical schematics showing how the servovalve, position feedback transducer and are limit switches wired to the electrical receptacles. DELIVERY 1. Delivery shall be 90 ARO. The provisions and clauses in the RFQ are those in effect through FAC 97-11. This procurement is a total small business set-aside. See Note 1. The SIC code and the small business size standard for this procurement are 3492 and 500, respectively. The quoter shall state in their quotation their size status for this procurement. All qualified responsible business sources may submit a quotation which shall be considered by the agency. Delivery to NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135 is required within 90 days ARO. Delivery shall be FOB Destination. The DPAS rating for this procurement is DO-C9. Quotations for the items(s) described above are due by 4:30 local time, July 20, 1999 and may be mailed or faxed to the identified POINT OF CONTACT,and include, solicitation number, FOB destination to this Center, proposed delivery schedule, discount/payment terms, warranty duration (if applicable), taxpayer identification number (TIN), identification of any special commercial terms, and be signed by an authorized company representative. NOTE: PLEASE FAX OFFERS TO JON SCHULTZ AT 419-621-3236; PHONE:419-621-3370; MAILING ADDRESS REMAINS THE SAME. Quoters are encouraged to use the Standard Form 1449, Solicitation/Contract/Order for Commercial Items form found at URL: http://procure.arc.nasa.gov/Acq/Forms/Index.html to submit a quotation. Quoters shall provide the information required by FAR 52.212-1. Addenda to FAR 52.212-1 are as follows: 1852.211-70 Brand Name or Equal (DEC 1988). If the end product(s) quoted is other than domestic end product(s) as defined in the clause entitled "Buy American Act -- Supplies," the quoter shall so state and shall list the country of origin. The Representations and Certifications required by FAR 52.2l2-3 may be obtained via the internet at URL: http://ec.msfc.nasa.gov/msfc/pub/reps_certs/sats/ FAR 52.212-4 is applicable. FAR 52.212-5 is applicable and the following identified clauses are incorporated by reference 52.222-21, 52.222-26,52.222-35,52.222-36,52.222-37,52.225-3,52.225-18,52.225-21 ALT.1 Questions regarding this acquisition must be submitted in writing no later than 15 days from the posted date. Award will be based upon overall best value to the Government, with consideration given to the factors of proposed technical merits, price and past performance; other critical requirements (i.e., delivery) if so stated in the RFQ will also be considered. Unless otherwise stated in the solicitation, for selection purposes, technical, price and past performance are essentially equal in importance. It is critical that offerors provide adequate detail to allow evaluation of their offer (see FAR 52.212-1(b). Quoters must provide copies of the provision at 52.212-3, Offeror Representation and Certifications -- Commercial Items with their quote. See above for where to obtain copies of the form via the Internet. An ombudsman has been appointed -- See Internet Note "B". It is the quoter's responsibility to monitor the following Internet site for the release of amendments (if any): http://procurement.nasa.gov/EPS/GRC/class.html .Potential quoters will be responsible for downloading their own copy of this combination synopsis/solicitation and amendments (if any). See Note(s) 1 . Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html Posted 06/28/99 (D-SN347840). (0179)

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