B08_Attachment_(1)_Amended_ALPENA_Baird_SOW_2024_0002.pdf

U.S. Fish & Wildlife Service _ Specifications _ Dry Dock Maintenance _ Spencer F. Baird _ 2024

Amended Specifications

U.S. FISH AND WILDLIFE SERVICE

M/V SPENCER F. BAIRD

SPECIFICATION FOR

DRY DOCK

MAINTENANCE

SPECIFICATIONS FOR 2024 DRY DOCK MAINTENANCE AND REPAIRS

M/V "SPENCER F. BAIRD"

Items 1-33 will be considered the Base Bid of this contract and will be bid as one item.

Items 34-41 will be additives and bid as individual line items.

1, Description of Work

a. Contractor shall provide all labor, materials, fittings, equipment, services, tools, power, heat, water, etc., and perform all work on U.S. Fish and Wildlife Service’s Motor Vessel “SPENCER F. BAIRD” specified herein. The principal dimensions and physical data for the vessel are shown below:

GENERAL DESCRIPTION

Length Overall ........................................ 95’-0” Breadth, Molded. ..................................... 30’-0” Depth, Molded Amidships ...................... 12’-9” Material .................................................. All Welded Steel Displacement, light ................................. 232 long tons Propellers (2). ......................................... 54”D, 4 blade Draft, loaded, aft..................................... 9’-6” Hull Form ............................................... Monohull/Keel Coolers

b. The work includes dry docking the vessel, cleaning the hull, and modifications and repairs in accordance with these specifications.

c. Wherever the term “plant” is used in these specifications, it is understood to refer to the item of floating plant named in this paragraph, together with its normal appurtenances, equipment, and supplies.

General vessel arrangements and details are included in the attached files named “801-101-A Profile” and “801-102B General Arrangements”. The drawings are as built level drawings but may not be suitable for detailed installation work. Exact dimensions and detailed locations must be verified prior to performing work. The Contractor shall template all work from the vessel.

d. Removal and/or relocation of any parts, equipment, fluids, etc. for interference or access including reinstallations are the responsibility of the Contractor at his expense. Any damage from removal or relocation of parts, equipment, etc. shall be repaired or replaced by the Contractor at the Contractor’s expense.

e. The Contractor’s work shall comply with ABS “Rules for Building and Classing Steel

Vessels” and USCG “Rules and Regulations for Subchapter I, Vessels” as found in the Code of Federal Regulations (46 CFR 69).

2. Indefinite Work scope

a. The Contractor shall notify the Contracting Officer’s Representative (COR) when any of the indefinite work items approach 75% of the bid quantity for the respective items noted in the Contract. The Contractor is not authorized to exceed the quantity specified for each indefinite item in this Contract without written authorization from the Contracting Officer

(CO).

b. The Contractor shall initiate all definite work items in sufficient time for the CO to direct such indefinite work items as may be revealed to be necessary by the performance of the definite work items.

c. The direction of any indefinite work items by the CO will be prompt to allow for completion of the indefinite work items within the Contract duration.

3. Contract Duration

The contract shall commence immediately upon award. The contractor shall purchase long lead items in advance of the vessel’s arrival at the contractor’s facility. The Contractor is responsible for completing all definite and indefinite work items within seventy (70) calendar days from the day after the vessel arrives at the Contractor’s facility.

4. Distance Restriction from Vessel Homeport

All Contract work shall be performed at a location no further than two hundred fifty (250) statute miles underway from the vessel’s homeport of Cheboygan, MI.

5. Pre-Bid/Pre-Proposal Conference and Site Visit

a. The Government is planning a pre-proposal conference, during which potential contractors may obtain a better understanding of the work required.

b. Offerors are encouraged to submit all questions in writing at least 3 days prior to the conference. Questions will be considered at any time prior to, or during, the conference;

however, offerors will be asked to confirm verbal questions in writing. Subsequent to the conference, an amendment to the solicitation containing an abstract of the questions and the Government’s answers, and a list of attendees, will be made publicly available.

c. In order to facilitate conference preparations, contact Contracting Officer to plan for security processing for entry of attendees into the Government facility.

d. In no event shall failure to attend the pre-proposal conference constitute grounds supporting a protest or contract claim.

e. Offerors are cautioned that, notwithstanding any remarks, clarifications, or responses provided at the conference, all terms and conditions of the solicitation remain unchanged unless they are changed by written amendment. It is the responsibility of each offeror, prior to submitting a proposal, to seek clarification of any perceived ambiguity in the solicitation or created by an amendment of the solicitation.

f. The pre-proposal conference will be held:

Date: To be determined Time: To be determined Location: To be determined

g. During the conference, an opportunity to visit the site of the work, and, if applicable, inspect equipment on which maintenance or repairs are to be performed will be offered to attendees.

h. Offerors are expected to satisfy themselves regarding all conditions that may affect the work required or the cost of contract performance. In no event shall failure to inspect the site and/or equipment constitute grounds for any protest or contract claim.

6. Delivery, Completion of Work and Return of Plant

a. The Governments Preferred haul out time is November 2024, with a secondary time of on or about July 1, 2024.

b. The Government will accept return of the plant in open water, clear of the Contractor’s yard or any other berthing facility used in connection with Contract work upon completion of the Contract.

c. If all work is not satisfactorily completed when the plant is returned to the COR, the

Contractor shall complete the work remaining to be done and any working time lost by the plant thereafter, because of any activities of the Contractor in completing said work, shall be included in the computation of time.

7. Liquidated Damages

a. In the case of failure on the part of the Contractor to complete the work within the time frame in the Contract or any extensions thereof, the Contractor shall pay the Government as liquidated damages, the sum of $6,000.00 for each calendar day of delay until the work is completed and accepted.

8. Contractor’s Custody of Plant

a. On entering and leaving dry dock, or marine railway, the Contractor shall have charge of, and be responsible for the vessel not operating under its own power. If tug or pilot service is required during delivery or return of the plant or at any time during Contractor’s custody for maneuvering the plant between open water and dry dock, slip or berth at the Contractor’s yard or other facility, or for moving the plant for any reason during the course of Contract work, such service shall be promptly furnished by the Contractor at their expense.

b. The Government shall have the right to access the vessel while in the Contractor’s custody with Government owned or hired floating plant or personnel.

c. The Contractor shall not permit the plant to go aground or bear upon the bottom of any waterway or go aground or bear upon any submerged object while in his/her possession. The Contractor shall not perform any Contract work on the plant if it should accidentally go aground or bear upon any submerged object but shall notify the COR and immediately take the necessary steps to refloat the plant. The sole exception to this shall be that the plant shall be allowed to rest or bear upon a drydock which is properly prepared.

9. Accident Prevention

The Contractor is responsible for compliance with all federal, state, and local regulations as well as USCG, ABS, and FWS regulations.

a. The Contractor shall take all necessary precautions for the protection of the life and health of employees and other persons; for prevention of damage to property, materials, supplies, and equipment; and for avoidance of work interruptions in the performance of this Contract. The Contractor shall comply with all pertinent provisions of OSHA Safety and Health Standards

29 CFR.

b. A qualified employee shall be designated by the Contractor to be directly responsible for full and immediate compliance with all applicable safety and fire protection requirements.

c. The Contractor shall maintain an accurate record of, and shall report to the COR, in the manner and on the forms prescribed by the COR, exposure data and all accidents, resulting in death, traumatic injury, occupational disease, and/or damage to property, materials, supplies and equipment incident to work performed under this Contract.

d. The COR, US FWS Safety Officer, and any other person(s) designated by the Contracting

Officer shall be allowed to access the plant and inspect the work site at any time, with or without notice. The Contractor shall, after receipt of any notice of Government safety concerns, immediately correct the conditions. Such notice, when delivered to the Contractor or his/her representative at the site of the work, shall be deemed sufficient for the purpose. If the Contractor fails or refuses to comply promptly, the CO may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such stop order shall be made the subject of a claim for extension of time or for excess costs or damages by the Contractor.

e. Compliance with the requirements of this provision by any subcontractors shall bethe responsibility of the Contractor.

10. Labor Reports

The Contractor shall keep and maintain complete payroll records for the duration of time covering the work under this Contract for a period of at least three (3) years from the end of such periods, and such records shall be made available for Government inspection upon request.

11. Workmanship

a. General

1. All labor shall be especially skilled for each kind of work, thorough, competent, and well trained and under competent direction and supervision at all times.

2. Where work of one trade joins, passes through or is on other work, there shall be no discrepancy or misfit when completed. In engaging one kind of work with another, marring or damaging of previously acceptable construction shall be cause of Contractor’s replacement at no additional cost to the Government.

3. All parts of the work intended to join or bear upon others shall have complete and solid surface contact and fit together neatly without excessive cold work during erection. All faying surfaces shall be properly finished in accordance with specifications and be clean and smooth before bolting up. Shims or liners shall not be used for the purpose of overcoming a bad fit. Stop waters shall be used only in seams or landings passing through or attached to watertight members.

4. All watertight staples and collars shall be malleable castings or forged from angles close fitting and with solid bearing over the entire faying surface. They shall be welded watertight.

5. Ends of outstanding flanges shall be cropped.

6. Lightening holes may be punched or burned, and all edges shall have burrs removed.

7. All hull castings shall be machined or ground to bear solidly against the connecting structure and all holes drilled. Holes in members having sharp curvature shall be avoided whenever practicable.

8. Limber and air holes in adequate size shall be cut in floors and elsewhere to provide free drainage and passage of air.

9. All new and disturbed work shall have its finish restored in kind, or as otherwise indicated by specification.

b. Cutting

1. All edges and corners of plates and shapes shall be smooth and free of burrs. The use of a cutting torch is permissible for cutting plates and shapes to size, but burning of bolt holes will not be permitted. New hull or bulkhead plates installed under this Contract shall have 2” minimum radius corners unless otherwise specified.

c. Welders and Welding

1. All welding performed under this Contract shall be accomplished only by welders who have successfully passed the qualification tests of ABS, the American Welding Society and/or the ASME for the type of welding to be performed by each welder.

2. The electrodes used throughout the work shall be suitable for use with the parent metal at each weld. Electrodes shall be received on the job in unbroken packages bearing the manufacturer’s label or be otherwise marked. Certified statements shall accompany each shipment of electrodes to the effect that sample pieces, representatives of each kind and size in each shipment, have satisfactorily passed the tests required by ABS.

3. All welding procedures shall conform to American Bureau of Shipping standards where applicable.

4. Welding procedures, as to direction, length, number, and sequence of beads, shall be carefully planned so as to minimize locked up stresses, shrinkage and distortion.

d. Standard Parts

1. All articles, fittings, equipment, machinery, and supplies used in the work covered by these specifications shall, as far as possible, be the manufacturer’s standard articles, of reliable make, the manufacturer’s current product, for which spare parts are readily available.

2. All materials, equipment, and machinery installed in or delivered with the vessel shall be new and of the quality specified herein.

12. Coating Systems and Painting All paints and other finishes specified to be applied under this Contract shall be furnished by the Contractor.

Surface preparation, painting, staining, and varnishing of new and old construction, shall be in compliance with all industry best practices and supplier’s product guidance.

13. Standard Hull Materials

All structural hull material shall be in accordance with the current rules of ABS, or with the following specifications:

• Standard Specifications for Structural Steel: ASTM A131/A131M Rev A.

• Standard Specifications for Carbon and Alloy Steel Forgings for Thin-Walled

Pressure Vessels: ASTM A372/A372M.

• Standard Specifications for Steel Castings, Carbon, for General Application: ASTM

A27/A27M.

• Standard Specifications for Steel Castings, High Strength, for Structural Purposes:

ASTM A148/A148M

• Standard Specifications for Gray Iron Castings: ASTM A48/A48M.

14. Electric Power and Other Utilities

The contractor shall furnish at his/her expense, all necessary electric power and any other utilities required during performance of the required work.

15. Wharfage, Dockage, Fresh Water, Garbage Disposal, Etc.

While the plant is in his/her possession, the Contractor shall be responsible for any, and pay all expenses of wharfage, dunnage, dockage, mooring lines, fresh water, garbage disposal, security, etc. The Contractor, after making repairs shall move the boat to a convenient berth for the purpose of testing machinery and taking on supplies. Fresh water for the use of the plant shall be provided by the Contractor, at their expense, while the plant is in their possession, and all freshwater tanks shall be properly filled with potable water on completion of the work and return of the plant to the Government.

16. Tests and Trials

All machinery or other equipment installed, repaired, or worked on by the Contractor shall be tested upon completion of all work to demonstrate proper installation and operation to the COR.

This shall include all removals for access and/or interference.

Rework on any such equipment to demonstrate proper installation and operation shall be performed at the expense of the Contractor.

17. Contractor Cooperation with the Contracting Officer’s Representative

The Contractor shall participate with the COR in the inspection of the vessel by the COR or any other person(s) designated by the Contracting Officer. All costs associated with the Contractor’s participation shall be the responsibility of the Contractor. The Contractor’s participation during or in connection with such investigations may include, but not be limited to, the following:

a. Dye penetrant, water hose, air lance, and/or vacuum box testing of any welds performed under this Contract.

b. Flooding of areas of decks, small voids, small tanks, and small spaces for testing of watertight integrity whether worked on under this Contract or not.

c. Pressure testing of piping that has been worked upon by the Contractor.

d. Manual movement of any unattached objects or any objects which can be easily dismounted or opened and moved anywhere on the vessel.

e. Minor amounts of audio gaging, chipping and paint and rust removal using handheld tools for investigative purposes.

Minor interruptions of work for purposes of inspection.

f. Scheduling of work to accommodate inspections of sea valves, sea chests, tanks, hull sections and spaces, machinery, and electrical items.

18. Watch Service Requirements

The Contractor shall provide a 24-hour watch service to respond to any emergencies/alarms on the vessel while in the Contractor’s possession. The watchman will be given a key to the SPENCER F. BAIRD for use at night, on weekends and on holidays. The Contractor shall provide the name and qualifications of the watchman in writing to the COR. This information shall be submitted no later than 10 days after the Contract award date and shall be a prerequisite to the start of any work on the vessel.

19. Vessel Security

The Contractor is responsible for all aspects of security including prevention of unauthorized access while the vessel is in the Contractor’s possession. Physical means of preventing unauthorized access (e.g., gated access) to the vessel shall be provided and maintained at all times.

20. Drydocking

a. The vessel shall be drydocked for such time as may be necessary to complete the work required by this Contract. In particular, but not limited to the following, the vessel shall be drydocked for any exterior hull cleaning and painting below the waterline and for any interior or exterior hull plating, cutting, welding, plate replacement or structural repair or replacement within or upon the hull including hull anodes, rudders, shafts and propellers.

b. Drydocking blocks and other drydocking supports shall not obstruct access to remove, work upon, or replace docking plugs, discharge openings, sea chests, anodes, shafts, struts, stern tubes, propellers, rudders, transducer wells, keel coolers or any other hull fittings. The Contractor shall remove and relocate drydocking blocks and/or supports or refloat and redry dock the plant, as needed at no additional cost to the Government in order to assure complete coverage in cleaning and painting or for any other work as specified herein.

c. The drawings listed below are included with the Contract package for the Contractor’s use with drydocking the vessel. The Contractor is responsible for determining the actual drydock blocking arrangement. The drawings listed below are provided to help the Contractor determine the proper drydock block size and arrangement.

• 110-101A.pdf – Side and Bottom Plating

• 117-104E.pdf – Structural Sections Fr 23-35

• 163-101B.pdf – Sea Chests, Keel Coolers, Hull Appendages

• Document No. 835-101 Hydrostatics

21. Exterior Cleaning and Painting

a. General

1. Remove existing hull paint, black in color, and repaint with black colored paint as specified below.

2. The Contractor shall clean and paint (if necessary) the exterior of the vessel using only paints that are compliant with the requirements specified herein in addition to all Federal, State and Local environmental laws.

3. The paint system shall, in general, consist of two coat epoxy paint systems, primer, and urethane finish coat. The described system shall be used consistently throughout the vessel and shall be applied according to the manufacturer’s directions. Any new paint or repainted areas shall be consistent in color to what was removed, and as specified in Sections c. and d. below. No paint used by the Contractor under this Contract shall be older than its shelf life as determined by its manufacturer at the time of its application to the vessel.

b. Procedure

The contractor shall perform the following work in sequence:

1. Remove all old hull anodes in accordance with TP 1.06 “Hull Anodes.”

2. Cover and protect all hull and house openings, equipment and fittings including but not limited to sea chests, transducers, keel cooler openings, ventilation openings, windows, deck and crane machinery, antennas, speakers, radar, and any other items which could be damaged by exterior cleaning operations. Any items damaged shall be replaced at the contractor’s expense. At no time shall sandblasting grit be permitted to enter the vessel. Surfaces to be sandblasted or sand washed shall be degreased prior to cleaning.

These specifications require the cleaning and painting of the entire exterior surface of the vessel.

3. Remove all cleaning/painting masks and covers and touch up paint any unpainted area or where made necessary by overspray.

c. Colors

Colors shall conform to the Federal Color chip numbers shown below. Federal Standard #595 of 1 March 1956 defines the appearance of the colors associated with each color chip number shown below. References below (such as “black”) not associated with a specific color. Chip number shall be associated with a specific color chip number shown elsewhere in this section for that color.

1. Hull below Water Line and Crane: Black similar or equal to Federal color chip number 17038 anti-fouling coating.

d. Paint Specifications

Color references below (such as “black”) in these specifications refer to the color definitions in © above. The abbreviation “dft” below means “dry film thickness”.

1. First Coat: Primer, all areas:

Paint will be Sherwin-Williams Company: SeaGuard 6000 or Sher-Glass – 5 mils dft

2. Second Coat: Finish Coat, all areas:

Paint will be Sherwin-Williams Company: SeaGuard 6000 or Sher-Glass - 5 mils dft, Black.

3. Third Coat: Finish Coat:

If required by manufacturers application instructions, will be Sherwin-Williams Company:

SeaGuard 6000 or Sher-Glass - 5 mils dft, Black.

22. Sea Chest

a. Install a new gate valve on chiller cooling water sea chest or relocate above main shutoff.

23. HVAC Replacement

Replace HVAC, main 3 under pilot house with equivalent new Flagship Marine air handlers.

Replace House, Galley, Pilot House air handlers and re-duct wet lab unit.

24. Night Generator Replacement

1. Remove existing night generator with approximately 26,800 hours and replace with New 40Kw Northern Lights generator.

25. Gas-Freeing Compartments

The Contractor shall gas-free and make safe for entry all compartments of the vessel for the purpose of inspection of the compartment by USCG, ABS, and/or the COR. The work associated with gas-freeing and making safe for entry is separate from that which would normally be required for the ordinary performance of work or ordinary inspection of work under these specifications. The work of this provision shall be performed by a licensed marine chemist who shall furnish the COR with a chemist’s gas-free certificate.

At the end of contract work the contractor shall reinstall all hatches with new gaskets and bolts as required. Gasket and bolt material shall be like the existing.

26. Bilge Water Disposal

If directed by the Contracting Officer, all drainage from the vessel as a result of cleaning of the bilges, draining of channel and grid coolers, and draining of hull compartments, shall be disposed by the Contractor in accordance with all Federal, State and Local regulations.

27. Five Year Inspection

The Contractor shall complete a “5-year inspection” as described in 46 CFR176 Subpart F. This includes but is not limited to removal of the rudders and rudders stocks for inspection, removal of the tail shafts and props, inspections of all associated bearings, the hull, sea chests, transducer, and through hull fittings. The Contractor shall document the findings of these inspections both textually and pictorially and submit his finding to the COR. Any parts that need to be replaced will be reviewed by the CO for possible incorporation through a modification to the contract.

28. Engine and Shaft Alignment

Contractor shall scan and inspect and align Main Engines, Shafts and Props, inspect Rudders, identify, and complete any maintenance issues.

29. Fresh Water Tank Cleaning

The contractor shall clean the inside surfaces of the empty potable water tank of the vessel. The tank is located in the bow thruster compartment of the vessel between frames 9 and 14. The capacity of the tank is 1925 gallons. The contractor shall pressure wash all inside surfaces of the tank and its access covers and shall remove all debris and cleaning residues. The contractor shall replace the valve at the bottom of the tank with a like valve. The contractor shall install a baffle plate above current potable water tank suction line to prevent air being pulled into the line.

Following the completion of all work, the access covers shall be reinstalled using new gaskets.

The Contractor shall chlorinate and rinse the tank in accordance with section 5.3.4 of the 2011 CDC Vessel Sanitation Manual upon completion all work on the potable water tank.

30. Change Environmentally Allowable Lubricant (EAL)

The contractor shall replace all existing EAL fluids and all filters (filter housing to be replaced on crane). including crane, steering, anchor and Rescue Davits, and pentagon systems.

Preferred brand is American Chemical Technologies since it is being used currently on other systems.

All drainage from the vessel shall be disposed of by the Contractor in accordance with all Federal, State and Local regulations.

31. Main Engine Maintenance and C9 Generators To be completed by an authorized CAT servicing dealer (CAT)

Recommended service from Michigan CAT at 3508–9000-hour service. These items all recommended from Michigan CAT:

1. Drian, flush and refill with ELC coolant

2. Remove and clean after-cooler.

3. Valve and injector adjustment

4. Inspect turbos.

5. Install drain valves at aftercooler thermostat housing.

6. Re-gasket main engine bellows

7. Pressure test keel coolers lines for potential leaks

32. Remove and Replace Hydraulic lines

Remove hydraulic lines on 2nd deck from old winch and cap in Engine Room (Approximately 30ft of pipe). Replace all outdoor and indoor exposed hydraulic hoses with new hoses and fittings on BT winches, crane, anchor windlass controls.

33. Air Compressor Inspection

Inspect (2) air compressor tanks and install new government furnished check valves.

*End of Base Bid Items*

Potential Additives in Order of Priority

Please provide pricing for each item 34-41 as additives to the base bid.

34. Trawl System Hydraulic Tank Add sight glass on trawl system hydraulic tank to visually monitor hydraulic level in system.

35. Inspect Non-Fuel tanks Inspect and clean and do a thickness test of steel on chiller tank, ballast tanks

36. New Vent and Fan Addition

Install a new 2.5inch gooseneck vent with inverted vent check and flame screen for exhaust.

Install an inline fan 500-700cfm, 120-volt fan in current lazarette vent to help circulate air and help with condensation.

37. Water Heaters Replace two 40-gallon electric water heaters located in potable water tank room.

38. Radar Install new radar Furuno FAR 2228BB and new magnetron for radar, Furuno FAR2228BB make, model that was new in 2021.

39. Power Panel Gauges

Replace all existing all power panel gauges, change to digital, 4 AC Voltage, 3 AC Amps, 3 Hertz,1 Amps to Ground. Color: Red if available.

40. Stbd. Anchor windlass hydraulic

Replace starboard anchor windlass hydraulic return line where leaking at the tee in chain locker.

Steel pipe and approx. 1.5-inch pipe tee and pipe

41. Generator Alarm

Trouble shoot and repair generator alarm. Alarm trips when switch is turned on.

42. Teknotherm Chiller Replacement Replacement chiller system for the Baird fish stocking operations. To complete this project, the contractor will need to cut an opening in the deck above the chiller space in the aft end of the vessel. This will allow for removal of the old unit and placement of the new unit.

1ea. Teknotherm DX Chiller Skid Compressor Specifications:

Compressor Manufacturer/Model: Bitzer 4CES-9Y Refrigerant: R448A Cooling Capacity (comparative): 32.4 kW @ 32°F (0°C) SST/100°F (37.8°C) SCT Cooling Capacity (at temp): 24.5 kW @ 18.5°F (-7.5°C) SST/95°F (35°C) SCT Cooling Capacity (pull down): 41.2 kW @ 41°F (5°C) SST/95°F (35°C) SCT Compressor Power (at temp): 7.92 kW Power Supply: 208-230V/3Ph/60Hz Electric Motor: 9 HP Control Power: 120V/1Ph/60Hz Approx. Skid Dimensions: 65.5” L x 27” W x 28” H

Chiller Specifications:

Chiller Manufacturer/Model: Teknotherm/Custom Capacity: 42.2 kW (12 TR) @ 18.5°F (-7.5°C) SST, 33.4°F

(0.8°C) EWT, 32°F (0°C) LWT

Water Flow: 202 gpm (45.9 m3/hr) Pressure Drop: 9.3 psi (0.64 Bar) Tube Material: Titanium, Grade 2 Tube sheet Material: Titanium, Grade 2 Shell Material: 316L SS Seawater Connections: 4” Flanged

Condenser Specifications:

Chiller Manufacturer/Model: Bitzer/STC025NB-XXX Capacity: 51.6 kW @ 95°F (35°C) SDT/10°F TD Water Flow: 38.7 gpm (8.8 m3/hr) Pressure Drop: 1.2 psi (0.08 Bar) Tube Material: Cu-Ni 90/10 Tube sheet Material: Plastic Coated Carbon Steel Shell Material: Carbon Steel Seawater Connections: 2” NPT