Demineralizer SOW Rev 0.docx

STATEMENT OF WORK

FOR:

DEMINERALIZERS

TABLE OF CONTENTS

1. SCOPE:

1.1 Fabricate, test and deliver Demineralizer Pressure Vessels for Puget Sound Naval Shipyard and Intermediate Facility (PSNS&IMF) per the following requirements.

2. APPLICABLE DOCUMENTS

2.1 ANSI 14.6-1993; Radioactive Materials – Special Lifting Devices for Shipping Containers Weighing 10,000 Pounds (4500 kg) or More

2.2 NAVSEA Technical Publication TP T9074-AS-GIB-010/271 (TP-271); Requirements for Non-Destructive Testing Methods

2.3 MIL-STD-2035A; Non-Destructive Testing (NDT) Acceptance Criteria

2.4 ASTM A370; Standard Test Methods and Definitions for Mechanical Testing of Steel Products

2.5 ASTM E208; Standard Test Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels

2.6 ASME Boiler and Pressure Vessel Code

2.7 10CFR Part 61: Licensing Requirements For Land Disposal of Radioactive Waste

3. REQUIREMENTS

3.1 General

3.1.1 The contractor shall provide a drawing that specifies the specific manufacturing details of the demineralizer assembly including all materials of construction. The contractor shall obtain approval of the drawing by PSNS&IMF, prior to demineralizer manufacture. PSNS&IMF shall have 5 working days to evaluate the drawing.

3.1.2 The contractor shall fabricate, assemble, and test the demineralizers at the Contractor’s facility prior to delivery.

3.1.3 The contractor shall deliver completed demineralizers to PSNS&IMF, Bremerton, Washington.

3.1.4 The delivered demineralizer assemblies shall be free of corrosion.

3.1.5 Where MIL-Specs, Standards, or Technical Publications are referenced in this document, the latest revisions shall be used unless a specific revision is listed.

3.2 Geometry / Performance:

3.2.1 Design Pressure of 29 inches Hg to 150 PSI.

3.2.2 Pressure vessel must meet ASME Boiler and Pressure Vessel Code.

3.2.3 Design Temperature 140 deg. F.

3.2.4 Design Flow Rate 25 GPM.

3.2.5 Design maximum differential pressure drop of 5 PSID at 25 GPM.

3.2.6 Outer diameter: 24 inches.

3.2.7 Three connection ports: inlet, outlet, and vent as follows:

3.2.7.1 Hansen quick disconnect fittings. Inlet connection shall be 1 inch female Hansen stainless steel self-sealing quick disconnect with mating aluminum dust cover and sleeve lock device. Outlet and vent connections shall be 1-inch male Hansen stainless steel self-sealing quick disconnects with mating aluminum dust covers. The inlet, outlet, and vent connections shall be labeled.

3.2.8 Demineralizer internal piping, quick disconnect fitting standpipes, and retention elements are to be constructed with corrosion resistant material (e.g. 300 Series Stainless Steel).

3.2.9 Media capacity: 7 cu. ft. total. The demineralizer shall be furnished complete with the following media:

3.2.9.1 3.5 cubic feet of HOH resin that conforms to O-I-1279, Class 3, FEDERAL SPECIFICATION ION EXCHANGE RESINS, or HOH resin that conforms to MIL-DTL-24119 Class 6. Rohm and Haas Amberlite IRN150 is acceptable for use.

3.2.9.2 3.5 cubic feet of newly manufactured, granular, activated carbon: US SIEVE SERIES 20 X 50 MESH, 0.6 AVERAGE EFFECTIVE MEAN PARTICLE DIAMETER, APPARENT DENSITY (ASTM 2854) 30 lbs/ft3 AVERAGE, TOTAL ASH CONTENT (ASTM 2866) 2% MAXIMUM, CARBON TETRACHLORIDE ACTIVITY (ASTM 3467) 62% MINIMUM, BALL PAN HARDNESS (ASTM 3802) 97 MINIMUM, pH (ASTM 3838) 3.0 - 10.0, IODINE NUMBER (ASTM 4607) 1050 MINIMUM, SURFACE AREA (B.E.T. EQUATION) 1100 -1250 m2/g. PICACHEM W6 Coconut Base Activated Carbon is acceptable for use.

3.2.10 Demineralizer must be constructed to support the waste processing media as a fixed bed retained inside the demineralizer.

3.2.11 The overall height of the demineralizer (including fittings and dust covers) shall be a maximum of 45-1/4 inches. The distance of the inlet pipe stub between the top of the demineralizer shielding material (paragraph 3.2.14) and the bottom of the installed female quick disconnect shall be 2 inches +0 inch, -1/8 inch. The top of the outlet and vent quick disconnects shall be even with the top of the inlet female quick disconnect.

3.2.12 The maximum weight of the demineralizer, media, and filled with water shall not exceed 2,000 lbs.

3.2.12.1 Obtain the weight of the completed vessel assembly prior to filling with resin and media of section 3.2.9. Vendor shall provide this data at delivery.

3.2.13 Demineralizer must have OSHA material safety warnings specified.

3.2.14 The top of the demineralizer shall be shielded with 6 inches of steel with a gamma attenuation tenth value thickness of approximately 4 inches, with minimum yield strength of 36,000 PSI.

3.2.15 A leakproof skirt shall be installed on the top of the demineralizer to retain water in the event of a leak.

3.2.16 The demineralizer shall be able to be dewatered to less than 0.5% of the volume of the waste as specified in 10CFR61.56. A certified dewatering procedure shall be provided with the demineralizer at each delivery.

3.2.17 Exposed surfaces of the demineralizer shall have a non-porous surface to provide for easy decontamination of all accessible external exposed surfaces of the demineralizer.

3.2.18 Carbon steel surfaces shall be painted with coatings that do not have any heavy metal constituents. Paint system shall be specified on vendor drawing.

3.2.19 The exterior side of the vessel shall be labeled "TOP HEAVY" in two locations on opposite sides of the vessel.

3.2.20 Certification or Certificate of Compliance (CoC) that materials used for the construction of each demineralizer assembly meet the Republic Services Richland site criteria for disposal of radiological material. Certificate shall be provided with the demineralizer at delivery.

3.3 Lifting and Handling:

3.3.1 Demineralizer must be outfitted with properly certified lifting and handling means as follows: Two 5/8”-11UNC-2B tapped lifting holes must be drilled and tapped into the six-inch shielding material. The holes must be tapped to a usable depth of 1.6 inch (minimum) and must be drilled 180 degrees apart on a 18-1/2 inch DBC. An area 1 inch in all directions from the center of each tapped lifting hole must be flat to allow 360 deg. contact of the safety hoist ring bushing. An area 2 inches in all directions from the center of each tapped lifting hole must be clear of obstructions that would restrict free movement of the safety hoist ring. The minimum yield strength of the six-inch shielding material must be 36,000 PSI to have a 10:1 to yield safety factor for the tapped lifting holes.

3.3.2 MIL-S-22698 grade EH36Z is to be used, if possible, for the shielding material that is to be tapped for the lifting holes. This material meets all of ANSI N14.6-1993 requirements for the tapped lifting holes with a 10:1 to yield safety factor. This steel comes with brittle facture testing completed.

3.3.2.1 If MIL-S-22698 grade EH36Z material is not used, then the tapped lifting holes shall go into steel with a 36,000 PSI yield or higher and meet ANSI N14.6-1993 for brittle facture requirements. This requirement is that a drop weight test per ASTM E 208 or a Charpy impact test per ASTM A 370 of the base material as specified in paragraph 4.2.6 of ANSI N14.6-1993 be done. The anticipated minimum service temperature for lifting the demineralizer vessel is 20 deg. F, therefore, the nil ductility transition temperature shall be -20 deg. F or lower.

3.3.3 The contractor shall forward results of material testing (obtain from procurement documents for MIL-S-22698 grade EH36Z if used) and shall obtain approval from PSNS&IMF prior to demineralizer manufacture. PSNS&IMF shall have 5 working days to evaluate the material test results.

3.3.4 Before load test of paragraph 3.3.5, the tapped lifting holes shall be visually inspected to the maximum extent practical for apparent deformation like cracks, crushed threads, gouges and other deficiencies that would affect load bearing capability. The results of the visual inspection and proof that the visual inspection occurred prior to load test must be submitted to the Shipyard for each tapped lifting hole.

3.3.5 The working load limit of the demineralizer shall be 2,500 lbs for the tapped lifting holes of paragraph 3.3.1 (combined). A load test shall be performed on the tapped lifting holes with the test load applied in the same direction the demineralizer is lifted, not to exceed 10.6 deg. from vertical. The load shall be 3750 lbs (+185 lbs, -0 lbs) applied equally between the two tapped lifting holes. The load test shall be held for a minimum of 10 minutes.

3.3.6 After load test of paragraph 3.3.5, the tapped lifting holes shall be visually inspected to the maximum extent practical for apparent deformation like cracks, crushed threads, gouges and other deficiencies that would affect load bearing capability and shall be inspected using GO, NO-GO gages.

3.3.7 After satisfactory load test and post load test visual certification, Magnetic Particle Inspection shall be performed on the base material around the tapped lifting holes, beginning at the edge of the hole and extending out 1/2 inch. This shall be performed in accordance with NAVSEA Technical Publication TP T9074-AS-GIB-010/271. The acceptance criteria for the Magnetic Particle inspection shall be MIL-STD 2035A, for wrought material.

3.3.8 A copy of all load test certification papers (includes load applied), results of visual inspections, results of gage inspections, and results of Magnetic Particle Tests shall be sent to the Shipyard prior to each shipment. Absence of these documents may be cause for rejection. PSNS&IMF shall have 5 working days to evaluate these documents.

3.3.9 After satisfactory test and certification of 3.3.8, a metal tag or stencil shall be applied to the vessel head with the following minimum information:

“Manufacturer:”

“Serial NO.:

“SPS Working Load Limit: 2500 lbs (both holes combined)” “Test Load: ________” “Test Date: ________” “Minimum service temperature: 20 deg. F” “Certification expiration date: NA, SF>10:1

3.3.10 The lifting and handling tapped holes shall have threaded plugs installed, after testing and inspection, to protect the internal threads. The tapped holes must be free of paint and debris.

3.4 Hydrostatic Testing

3.4.1 Prior to installation of the quick disconnects, each shall be hydrostatically tested on the backside of the plunger to a minimum of 165 psig for 5 minutes, with no leakage. This is to ensure that the plunger sufficiently self-seals to minimize leak by upon disconnects.

3.4.2 The contractor shall provide a certification that each completed demineralizer assembly (including installed quick disconnects) has been hydrostatically tested to a minimum of 165 psig for 30 minutes, with no leakage or deformation allowed, prior to shipment. The demineralizer shall be blown down of free standing liquid after hydrostatic test and prior to shipment. A copy of hydrostatic test certification papers shall be provided for the demineralizer with the hydrostatic test pressure, documented proof of duration of test, and date the hydro was performed. Absence of the documents listed above shall be cause for rejection. PSNS&IMF shall have 5 working days to review hydrostatic test records.

3.5 Shipping and Handling

3.5.1 Demineralizers shall be transported in temporary shipping containers or crates. No more than two demineralizers shall be placed in each container or crate.

3.5.2 Screws shall be used for final securing of shipping container / crate walls and top.

3.5.3 Each shipping container or crate shall have a pallet attached for forklift compatibility.

3.5.4 Shipping container / crate and transport vehicle shall be configured to prevent foreign material or road debris from entering the container and depositing on the demineralizer(s).

3.5.5 Contractor shall arrange for the transportation company to protect the demineralizer from freezing during shipment. Contractor shall label each shipping container with the following statement in large, legible font: “Provide freeze protection”

3.6 Inspections

3.6.1 Final acceptance of each demineralizer shall be made at destination by PSNS&IMF within 20 working days after receipt, unless otherwise specified. Acceptance shall be based on satisfactory examination of the physical items and of submitted documentation / deliverables.

3.7 Documentation and Certifications

3.7.1 A Certificate of Compliance (CoC) is required to be submitted at each delivery verifying compliance with the requirements of this specification. This certification shall be via signature on a letter or form supplied by the contractor and shall refer to this contract and identify each item/component to which that certification applies. Signature may be made based on his/her personal observation or his/her review of the required documentation. All signatures shall include the full name, title, and date. PSNS&IMF shall have 10 working days to evaluate these documents.

3.7.2 A summary of required deliverables is listed in Table 1.

Table 1: Summary of Deliverables

Prepared By: PSNS&IMF, Code 2310.3 Page 8 of 8 November 5th, 2025 Rev. Orig