Attachment 1 - DRAFT A Plant Barometric Well Revitalization.pdf

DRAFT

14991-26-100

DISTRO A

Approved for Public Release

Distribution Unlimited

IRA-25-1127

SOW NO.: 14991-26-100

12 December 2025

STATEMENT OF WORK

TO

REFURBISH FIVE (5) VERTICAL TURBINE PUMP ASSEMBLIES

ARNOLD ENGINEERING DEVELOPMENT COMPLEX

ARNOLD AIR FORCE BASE, TENNESSEE 37389-9998

DISTRIBUTION STATEMENT A

Approved for Public Release: Distribution Unlimited

IRA-26-1127

TABLE OF CONTENTS

1. SCOPE

1.1 General

2. APPLICABLE DOCUMENTS

2.1 Government Documents

2.2 Non-Government Documents

3. REQUIREMENTS

3.1 General

3.2 New and Refurbished Parts

3.3 Assembly

3.4 Transportability

3.5 Materials

3.6 Workmanship

3.7 Deliverables

3.8 Submittals

4. TESTING AND CERTIFICATIONS

4.1 Testing

4.2 Verification at AEDC

5. PACKAGING

5.1 Preparation for Delivery

5.2 Post-Delivery Storage

IRA-26-1127

1. SCOPE

1.1 General: The Contractor shall refurbish five (5) Fairbanks Morse VTP 24M vertical mixed-flow propeller water-lubricated open lineshaft pump assemblies.

The refurbished pump assemblies shall meet or exceed the existing performance capabilities.

1.2 Pump assemblies shall be shipped to the Contractor for refurbishment.

Contractor shall be responsible for return shipping costs.

1.3 Definition: The term “refurbish” means to dismantle, inspect, clean, and repair or replace worn components to restore it to its original performance specifications using new and reconditioned parts.

2. APPLICABLE DOCUMENTS

2.1 Government Documents: Not applicable.

2.2 Non-Government Documents:

2.2.1 American National Standards Institute/Hydraulic Institute

A. ANSI/HI 14.6 Rotodynamic Pumps for Hydraulic Performance Acceptance Tests

2.2.2 American Petroleum Institute:

A. API 610-21 Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries

2.2.3 American Society of Mechanical Engineers

A. ASME B16.5-20 Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard

B. ASME B31.3-24 Process Piping

2.2.4 American Society for Testing and Materials

A. ASTM A48 Standard Specification for Gray Iron Castings

B. ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

C. ASTM A108 Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished

IRA-26-1127

D. ASTM A193 Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications

E. ASTM A276 Standard Specification for Stainless Steel Bars and Shapes

F. ASTM A307 Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60,000 SPI Tensile Strength

G. ASTM B150 Standard Specification for Aluminum Bronze Rod, Bar, and Shapes

H. ASTM B505 Standard Specification for Cooper Alloy Continuous Castings

I. ASTM A536 Standard Specification for Ductile Iron Casting

J. ASTM A582 Standard Specification for Free-Machining Stainless Steel Bars

K. ASTM B584 Copper Alloy Sand Castings for General Applications

2.2.5 American Water Works Association

A. AWWA C210-24 Liquid-Epoxy Coatings and Linings for Steel Water Pipe and Fittings

B. AWWA E102-23 Submersible Vertical Turbine Pumps

3. REQUIREMENTS

3.1 General:

3.1.1 For Information Only.

3.1.1.1 The pump assemblies are designed for continuous operation under normal service in accordance with the manufacturer’s performance curve range, under the following conditions:

A. Flow capacity = 13,000 gallon per minute (GPM)

B. Total Dynamic Head (TDH) = 60 feet. Note: Total dynamic head is measured at the discharge of the pump and includes velocity head and vertical static head from the minimum water

IRA-26-1127

level to the centerline of the pump discharge.

C. Maximum shutoff head = 90 feet

D. Minimum water level = Elevation of 40 feet

E. Operating range is between an elevation of 48 feet and 63 feet.

F. Pump is mounted at 99 feet elevation with the sump floor at 37 feet elevation.

G. Pump discharge centerline is at 95 feet elevation.

H. Maximum pump speed ≤ 880 revolutions per minute (RPM)

I. Fluid = Raw Lake Water at temperature between 32 to 150 °F, maximum solids passage = 1 inch

J. Maximum discharge pressure = 30 pounds per square inch (psi)

3.1.1.2 The pump assemblies operate in the following environment:

A. -20˚F to +120˚F temperature range

B. 20% to 100% relative humidity range

C. 13.7 to 14.5 pounds per square inch absolute (psia) barometric pressure range

3.1.2 Refurbish five (5) Fairbanks Morse VTP 24M vertical mixed-flow propeller water-lubricated open lineshaft pump assemblies. The refurbished pump assemblies shall meet or exceed the existing performance capabilities. Any material or component substitutions shall be approved by the Government prior to reassembly.

Note: The original pumps were Fairbanks Morse model 6360; however, several were converted to model 8312 during a previous refurbishment effort.

3.1.3 Any pump set that is oil lubricated shall be converted to water lubricated.

3.1.4 As-Received Inspection

3.1.4.1 Each pump assembly shall undergo a detailed “as-received” inspection to assess wear, corrosion, alignment, and dimensional tolerances.

IRA-26-1127

3.1.4.2 All disassembled components shall be thoroughly cleaned.

3.1.4.3 Findings shall be documented, to include photographic evidence; and any components showing signs of damage, cracks, or excessive wear shall be identified for repair or replacement.

3.1.4.4 Each pump shall be assessed on an individual basis in reference to its serial number. All materials unique to each pump shall not be interchanged.

3.2 New and Refurbished Parts: All new or refurbished parts used in pump assembly refurbishment shall meet the following requirements.

3.2.1 A certificate of compliance from the manufacturer shall be provided for all new parts/materials to confirm the material meets the applicable requirements and standards, including its composition, mechanical properties, and compliance with industry standards.

3.2.2 Propellers

3.2.2.1 Propellers shall be of bronze construction conforming to ASTM B584, C83600 or ASTM B150 aluminum bronze. They shall be a one-piece construction, mixed flow-vane design capable of passing a solid. Vane leading edges shall be rounded to prevent accumulation of fibrous material. Propellers shall be statically and dynamically balanced to limit vibration and supported on both sides by sleeve-type bearings for stability.

3.2.2.2 Propellers shall be secured to the shaft by means of a steel drive collet, bronze lock nut and longitudinal keys to prevent axial movement.

3.2.2.3 Propellers location within the bowl shall be adjustable by means of a top shaft-adjusting nut when utilizing a vertical hollow-shaft motor, or by an adjustable coupling when using a vertical solid-shaft motor.

3.2.3 Bowls

3.2.3.1 Bowls shall be made of close-grained cast iron conforming to ASTM A48 CL30. Castings shall be free from blowholes, sand holes and shall be accurately machined and fitted to close dimensions.

3.2.3.2 Bowls shall be flange ASME B16.5 and ANSI 125# class connected.

3.2.3.3 Bowls shall be designed with smooth passages to ensure efficient operation.

3.2.3.4 Bowl assembly shall include a cast iron suction bell of the flared inlet

IRA-26-1127

type incorporating a permanently grease-packed bronze bearing. The suction bell shall incorporate a minimum of three guide vanes designed to minimize entrance losses and reduce vertexing.

3.2.3.5 A bronze sand cap shall be provided to prevent entrance of sand into the suction bell bearing.

3.2.3.6 The discharge bowl shall be provided with an ASTM B505 C93200 bronze 660 bearing immediately above the propeller, a bronze connector bearing, and a sand collar.

3.2.3.7 Bowl assembly shall meet a minimum efficiency requirement of 80%.

3.2.3.8 Bronze bowl liners can be utilized. Liners shall be of bronze construction conforming to ASTM B505 C93200 or ASTM B584 C83600. Bronze liners shall be approved by the Government prior to use.

3.2.4 Propeller Shafts

3.2.4.1 Propeller shafts shall be 416 stainless steel construction conforming to ASTM A582 designed to transmit the required drive torque.

3.2.4.2 Propeller shafts shall be supported by ASTM B505 C93200 bronze bearings located on both sides of each propeller.

3.2.4.3 Propeller shaft couplings shall be 416 stainless steel construction conforming to ASTM A582.

3.2.5 Columns

3.2.5.1 Column piping and bowl assemblies shall be inspected to determine required modifications. If modifications are required that exceed the scope defined in this SOW, the Government shall be notified.

Implementation of such modifications is contingent upon prior Government approval.

3.2.5.2 Column pipe shall be Schedule 30 ASTM A53 carbon steel 24 inches nominal diameter and weigh not less than 140.68 pounds per foot.

3.2.5.3 Column pipe shall be flanged and furnished in sections not over ten feet in length. Bead blasted and cleaned columns shall be reused if within thickness tolerance.

3.2.5.4 All Flange connections shall be ASME B16.5 and ANSI 125# class.

All register fits shall be polished.

3.2.5.5 All hardware shall be ASTM A276 304/316 stainless steel or marine

IRA-26-1127

grade equivalent.

3.2.5.6 All columns shall be coated to conform to AWWA C210-24 standards.

3.2.6 Lineshafts

3.2.6.1 Lineshafts shall be of ample size (2-11/16”) to transmit the torque and operate the pump without distortion or vibration.

3.2.6.2 Lineshafts shall be made of 416 stainless steel conforming to ASTM A582 and be furnished in sections not over ten feet in length.

3.2.6.3 Lineshafts shall be coupled with threaded ASTM A582 416 stainless steel couplings machined from solid bar steel.

3.2.6.4 Lineshafts shall be keyed with ASTM A582 416 stainless steel machined from solid bar stock.

3.2.6.5 Lineshaft sleeves made of ASTM A582 416 stainless steel shall be used upon entry of the stuffing box to resist against packing or mechanical seal wear.

3.2.6.6 Lineshaft bearing retainers shall be integral style and made from ASTM A276 304 stainless steel or ASTM A536 cast iron.

2.2.6.7 Lineshaft bearing material shall be Vesconite or water-lubricated rubber style.

2.2.6.8 Maximum spider bearing spacing shall be 10 feet.

2.2.6.9 Spiders in columns shall be welded, and all components shall be machined.

3.2.7 Discharge Head Assembly (below ground, mechanical)

3.2.7.1 The 24” pump discharge head shall be of the below ground (Xylem Type U) type made of fabricated carbon steel construction with ANSI 125# discharge flanges and identical motor mounting bases as the previous head.

3.2.7.2 A 2-11/16” drive shaft of the same material as the lineshaft shall extend through the sealing assembly of the discharge head and be coupled to a vertical hollow shaft or vertical solid shaft driver using a spacer type coupling to permit easy field removal of the mechanical seal or PackRyt® bearing.

3.2.7.3 Motor pedestals shall be drilled for new packing boxes. The following

IRA-26-1127

new parts shall be provided: shafts, shaft sleeves, rubber line shaft bearings, packing box and accessories to include bushings, split gland, packing and associated hardware, nuts/bolts etc.

3.2.7.4 The stuffing box shall be rated for the pump’s maximum discharge pressure of 30 psi and be made of ductile iron ASTM A536, water lubricated and have a fitting for pressure relief. Plug bypass ports for water flush operation.

3.2.7.5 Packing with PackRyt® bearing style or non-leaking Cartridge Mechanical seal permitted only with stainless hardware. Rubber slinger shall be provided to fit the diameter of the shaft. Material used shall be compatible with the pumps shaft speed of 900 RPM, the fluid pumped (raw water), and fluid temperature (32 deg F – 200 deg F).

3.2.7.6 Packing/Seals:

3.2.7.6.1 Packing materials selected shall have dry lubrication properties with low coefficient of friction and braided fiber graphite type. Five rings of packing, a lantern ring, or grease chamber, and a split gland follower, made of stainless steel. Packing box bearing shall be bronze B505-836.

3.2.7.6.2 Mechanical seals shall be Chesterton, or ASTM A276

316 stainless steel equivalent, and rubber backing split seal type rated for this application.

3.2.7.7 All stuffing box fasteners shall confirm to ASTM A194 or A307.

3.2.7.8 The discharge head/motor pedestals shall be stored safely throughout the duration of the refurbishment and reused upon recommissioning the pump for operational testing.

3.2.7.9 All deformation, damage, or cracks observed in the housing shall be documented within the As-received Inspection Report as outlined in Section 3.1.4. These issues will then be assessed and repaired.

During the repair process, extreme caution must be exercised to avoid damaging mounting threads, identification tags, or other important components.

3.2.8 Vibrations Limitations (Field) - The limits of vibration as set forth in the standards of the Hydraulic Institute shall govern.

3.2.9 Internal and External Coatings

3.2.9.1 All coatings shall conform to AWWA C210-24 NSF/ANSI/CAN 600

IRA-26-1127

except the exterior of the discharge head.

3.2.9.2 The bowl assembly, flanges and up to the base of the discharge head will be coated in fusion bonded epoxy or epoxy equivalent in black at least 8-12 mils thick externally.

3.2.9.3 The discharge head shall be coated in a fusion bonded epoxy or epoxy/paint equivalent to Silver-Brite aluminum paint with at least 8- 12 mils thick externally.

3.2.9.4 The 90-degree elbow shall be coated internally with an ARC SD4i or equivalent ceramic coating with at least 10-15 mils thick on each coat. Three layers of coating, rotating colors between coats (green, blue, green, etc.), shall be applied.

3.2.9.5 All threads and identification tags shall be protected from coatings and damage.

3.2.10 Strainers

3.2.10.1 Strainer baskets shall be clip-on bell type made of ASTM A276 304 stainless steel and have 1/4” diameter mesh with holes no larger than 1” x 1”.

3.2.10.2 Strainers must contain a free area of at least 4 times the suction area and with openings to restrict the passage of 1” solids.

3.2.10.3 Strainer must not exceed the outside edge of the suction bell by more than a half inch on edge.

3.2.10.4 The suction bell must be tapped for easy installation/removal of the strainer basket using marine grade hardware of proper size based off weight and application.

3.2.10.5 The total pump length of the pump is 57’ 10” from the top of the head shaft to the base of the suction bell. The length of the strainer will be added to this measurement.

3.2.11 A material certificate of compliance from the manufacturer shall be provided for all new parts to confirm the material meets the applicable requirements and standards, including its composition, mechanical properties, and compliance with industry standards.

3.2.12 The pump shall rotate counterclockwise when viewed from the driver end looking at the pump. Refurbished pump assemblies shall undergo a bump test to confirm correction rotation prior to full checkout.

3.3 Assembly: The pump assemblies shall be minimally separated to allow safe

IRA-26-1127

transport with orientations marked for disassembled components. Assembly instructions shall be provided.

3.4 Transportability: The pump assemblies shall have provisions for lifting by crane or lift truck. The discharge head utilizes a custom rigging ring for lifting by crane or lift truck. This ring is property of AEDC and if required by Contractor it shall be returned to AEDC with the refurbished pump assemblies.

3.5 Materials: All materials, equipment and components shall be new, or refurbished to OEM quality, and free from defects. Materials shall be made in the USA and that of standard products of a manufacturer regularly engaged in manufacturing the products specified.

3.6 Workmanship: The components shall be constructed and finished in such a manner that no sharp edges, burrs, or physical defects are present.

3.7 Deliverables: The following items shall be delivered with each refurbished pump assembly.

3.7.1 As-Received Inspection and Condition Report

3.7.2 Material/Parts Certificates of Compliance

3.7.3 Certified Factory Performance Test Report

3.7.4 Paint Thickness Report

3.7.5 Bill of Material

3.8 Submittals:

3.8.1 Drawings: Contractor shall prepare and submit three (3) copies of the following drawings of the pumps within nine (9) weeks following contract award.

3.8.1.1 Assembly drawings: These drawings shall provide complete Bills of Material, sufficient details, and assembly information for the end user to replace parts or repair the pumps and components. These diagrams shall serve as shop drawings for installation of the pumps and shall be submitted three (3) weeks following contract award.

3.8.2 Calculations: Contractor shall prepare and submit for review three (3) copies of calculations and supporting information to include bowl assembly sizing and material selection within nine (9) weeks following contract award.

3.8.3 Manuals: Contractor shall prepare and submit, at pump assembly delivery, three (3) copies of bound instructions on operation and maintenance of the system. Instructions shall cover each piece of equipment in the system. The manuals shall include, but not be limited to, the following:

IRA-26-1127

3.8.3.1 Assembly drawings (described in Section 3.9.1).

3.8.3.2 Operation Manual: The operating manual shall outline the step-by-step procedures required for pump assembly operation and shall include the manufacturer's name, model number, service manual, and parts list.

3.8.3.3 Maintenance data and spare parts list of pump assembly. Include packing/mechanical seal replacement procedure, shaft replacement procedure, coupling replacement procedure, bowl assembly, product data, and shop drawings in a hardbound, loose-leaf notebook for a maintenance manual or electronic copies.

3.8.3.4 Manufacturer’s bulletins, cuts, and descriptive data on each piece of equipment.

3.8.3.5 Parts lists and recommended spare parts. The Contractor shall provide a parts list containing each part with the manufacturer’s name, part number, price, and a vendor for each part. The Contractor shall also provide a list of spare parts recommended by the manufacturer during one year of normal operation.

3.8.4 Warranty: A minimum of 1 year or standard manufacturer’s warranty, whichever is longer, shall be provided for all equipment. Warranty period shall not start until the pump assemblies are accepted by the Government.

3.8.5 All documentation provided shall be accompanied with an electronic version as part of the submittals.

3.8.6 Submittal Table:

Table 1. Required Submittal List

No. Section Reference Submittal Description Due

1 3.8.1 Drawings 9 weeks after contract award 2 3.8.2 Calculations 9 weeks after contract award 3 3.8.3 Manuals At Delivery 4 3.8.4 Warranty At Delivery 5 3.8.5 Electronic Version At Delivery 7 4.1.2 Test Schedule 15 working days before testing 8 4.1.3 Factory testing Prior to shipment

IRA-26-1127

4. TESTING AND CERTIFICATIONS

4.1 Testing:

4.1.1 The Government reserves the right to witness all testing.

4.1.2 Notify the Government at least 15 working days in advance of the factory testing scheduled.

4.1.3 Factory Testing:

4.1.3.1 Unless otherwise specified, certified factory performance tests shall be conducted using equipment, methods, measurements, and calculations in accordance with the applicable ANSI, ASME, and API standards

4.1.3.2 Hydro tests shall be performed on all column process piping per API 610-21 and ANSI/HI 14.6.

4.1.3.3 Tests shall be sufficient to determine the curves of head, input, horsepower, and efficiency relative to capacity from shut off to 150% of design flow. A minimum of six points, including shutoff, shall be taken for each test.

4.1.3.4 Test reports of all standard factory tests and routine tests as mandated by the referenced standards, regardless of whether they are explicitly listed in this specification, shall accompany each pump upon return delivery.

4.1.3.5 Documents representing results of factory tests for bowl assemblies shall be provided prior to shipment.

4.1.3.6 Bowl assemblies shall not require retesting unless severely damaged during shipment, handling, or installation. Should damage occur, the manufacturer shall be required to retest pump prior to installation.

4.1.3.7 A report confirming successful completion of testing shall be included with the bowl assemblies.

4.2 Verification at AEDC:

4.2.1 If requested by the Government, the Contractor shall provide personnel in attendance during initial startup after installation to inspect and correct any issues. The attending Contractor representative shall certify in writing to the Government that the pump was properly installed and adjusted at the conclusion of the installation and break in cycle.

IRA-26-1127

5. PACKAGING

5.1 Preparation for Delivery: The assemblies shall be packaged and tagged in a manner that will protect the equipment from damage and facilitate the installation in the field. Machined and unpainted parts shall be protected from damage by the elements with the application of a strippable protective coating.

5.2 Post-Delivery Storage: Contractor shall provide all preservation, packaging, and packing such that the pump assemblies and related components can be stored on a pallet outdoors and sustain no damage from rain, sleet, snow, hail and other environmental conditions for up to 12 months.

END OF DOCUMENT