LNG Vaporizor/Model PBA20SS-29.4/1

Statement of Work (SOW): LNG Ambient Pressure Build Vaporizer 1. Purpose This Statement of Work defines the requirements and responsibilities for the procurement of one ambient pressure build vaporizer to support liquid methane operations at NASA Stennis Space Center. The vaporizer will convert liquid methane to gaseous methane for use in facility test operations. 2. Scope of Work The supplier shall design, manufacture, clean, test, and deliver a fully assembled ambient pressure build vaporizer that meets the performance, material, and dimensional requirements outlined in this document. The completed unit shall be appropriately packaged and prepared for shipment. 3. Technical Requirements The vaporizer shall meet the following requirements: - Flow capacity: 27,000 SCFH minimum for an 8-hour operating period at sea level. - Working fluid: Liquid methane. - Outlet gas temperature: Minimum 10°F above saturated liquid temperature. - Maximum allowable working pressure (MAWP): 600 psig. - Normal operating pressure: 75 psig. - Pressure drop: Less than 1 psi at full flow. - Wetted materials: 304 stainless steel. - Inlet connection: 1.5-inch ASME class 150 flange. - Outlet connection: 4-inch ASME class 150 flange. - Internal surface area: 60 sq. ft. - External surface area: 2,940 sq. ft. - Fin spacing: 9.25 inches center-to-center with 1.25-inch gap. - Oxygen-service cleaning required in accordance with CP010102 Rev 5. -- 1 of 2 -- - Approximate dimensions: 94 in wide × 377 in deep × 65 in tall. - Approximate clean weight: 2,016 lbs; approximate iced weight: 11,781 lbs. 4. Delivery Requirements Delivery shall occur within 14 to 16 weeks after order placement. The supplier shall package and prepare the vaporizer for transport, ensuring safe handling and preservation during shipment. 5. Documentation Requirements The supplier shall provide the following documentation: fabrication drawings, material certifications, oxygen-cleaning certification, installation guidelines, and operation and maintenance instructions. 6. Warranty The supplier shall provide a warranty ensuring the equipment is free from defects in material and workmanship for a minimum of one year from installation or 18 months from shipment. Warranty evaluation requires return of the equipment to the supplier unless otherwise agreed. 7. Quality Assurance & Inspection The supplier shall perform inspection and testing prior to shipment to verify compliance with all technical requirements. NASA reserves the right to request inspection access at the manufacturing facility. 8. Acceptance Criteria The vaporizer will be accepted once it meets all technical specifications, passes inspection, and all required documentation has been delivered. 9. Responsibilities The supplier is responsible for fabrication, cleaning, testing, documentation, and packaging. NASA will coordinate and fund transportation, unloading, and inspection upon delivery. -- 2 of 2 --