N0017424Q0025. A0003.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purposes for this amendment is to provide RFI responses and extend proposal due date from 26 March 2024 to 9 April 2024. Description of this amendment continues on page 2.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 8

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 26-Mar-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X N0017424Q0025

X 9B. DATED (SEE ITEM 11)

15-Feb-2024

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

26-Mar-2024

CODE

NSWC IHD C02

4081 N. JACKSON RD

BLDG 841

INDIAN HEAD MD 20640-5116

N00174 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

N0017424Q0025

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0003

1. The solicitation is hereby amended to provide RFI Responses and to extend the proposal due date.

2. The following RFI Responses are being provided: PLEASE SEE BELOW

3. The proposal due date is hereby extended from 26 March 2024 at 2:00 P.M. to 9 April 2024 at 2:00 P.M.

4. Contractor must acknowledge ALL amendments when submitting their proposal.

5. All other terms and conditions remain unchanged.

RFI Responses:

Inquiry 0001: Design and construction of the bowl being heated

Answer 000174 sqft jacketed area, 100 sqft outside area, no insulation, stainless steel construction (unsure what alloy)

Inquiry 0002: Bowl Support System Answer 0002: This question was unclear.

Inquiry 0003: Interstitial heat transfer jacket design, and process connections

Answer 0003: unsure of internal design (proprietary to bowl manufacturer), inlet/outlet lines are 1-1/2" dia, with 1-1/4" quick connect fittings

Inquiry 0004 Bowl and heat transfer jacket insulation Answer 0004: None

Inquiry 0005: Ambient air temperature range of the room the bowl is operating Answer 0005: 70F for the bowl, 50-120F for the BTCS

Inquiry 0006: Ventilation flow in and out of the room Answer 0006: 1ea 16" fan + 2ea mini-split

Inquiry 0007: Linear pipe distance from the bowl to the Chiller and Heat transfer skids Answer 0007: Est. 4' from chiller skid to heat transfer skid (chiller located outdoors, heat transfer indoors)

Inquiry 0008: Can you provide a preferred supplier’s component list.

Answer 0008: See solicitation for interface/controls preferred suppliers. Hardware suppliers are vendor's preference.

Inquiry 0009: Will the component used on the project require certification of origin.

Answer 0009: yes

Inquiry 0010: Do the components require to be explosion proof.

Answer 0010: no

Inquiry 0011: Need sq area of bowl (inside and outside) Is the bowl insulated if so, what is the K factor of the insulation.

Answer 0011: 74 sqft jacketed area, 100 sqft outside area, no insulation

Inquiry 0012: Is the bowl made of stainless steel?

Answer 0012: yes, unsure what specific type

Inquiry 0013: Ambient temp inside of building Answer 0013: 70F for the bowl, 50-120F for the BTCS

Inquiry 0014: Hottest temp outside of building Answer 0014: 120F

Inquiry 0015: Do you have tower water if so, max temp, pressure, flow rate (GPM) and cleanliness.

Answer 0015: no, system is closed loop

Inquiry 0016: Need plant layout. Equipment layout, distance from outside to chiller to bowl.

Answer 0016: chiller to HX is at ground level; HX out of mechanical building is elevated (10' ceiling).

Approx 25' indoors to building penetration, 30' outdoor horizontal run, 16' drop to first floor, 15' horizontal run to building penetration, 40' indoor run to bowl

Inquiry 0017: Will the piping from chiller to bowl run in ceiling, if so, need height of ceiling and structure of ceiling.

Answer 0017: chiller to HX is at ground level; HX out of mechanical building is elevated (10' ceiling).

Approx 25' indoors to building penetration, 30' outdoor horizontal run, 16' drop to first floor, 15' horizontal run to building penetration, 40' indoor run to bowl

Inquiry 0018: How will the navy verify acceptance during runoff.

Answer 0018: NSWCIHD representative to witness functional testing at contractor site (FAT), and site testing (SAT) once installation is complete

Inquiry 0019: Will the customer off load the trucks when shipment arrives.

Answer 0019: no

Inquiry 0020: Will the customer place the equipment and secure to floor.

Answer 0020: no

Inquiry 0021: Are 3d drawing or prints of the bowl available as it sits on the floor? Require port sizes in an out for heat/cooling, etc.

Answer 0021: Bowl ports are 1-1/2" dia, with 1-1/4" quick connect fittings

Inquiry 0022: It is my understanding that the equipment in our original quote was selected and sized by Cummins- Wagner based off the existing BTCS as direct replacements. There was no “system” data or material properties that we were provided to calculate heating load required. However, in the solicitation, it states “3.3.1.1 The system shall be capable of heating an empty 420-gallon bowl in Building 1881 from 70 degrees Fahrenheit to 180 degrees Fahrenheit in less than 30 minutes. 3.3.1.2 The system shall be capable of cooling an empty 420-gallon bowl in Building 1881 from 180 degrees Fahrenheit to 70 degrees Fahrenheit in less than 90 minutes.” Was the existing system already sufficient in heating and cooling the 420-gallon bowl in the specified time frames? If not, then we will need a specific spec for BTU load.

Answer 0022: Existing unit is adequate to meet the stated requirements. it is sized to for 1,600,000 BTU/hr load, 80 GPM *water* flow

Inquiry 0023: Can the Navy provide a preferred supplier’s component list.

Answer 0023: See solicitation for interface/controls preferred suppliers. Hardware suppliers are vendor's preference.

Inquiry 0024: Will the component used on the project require certification of origin.

Answer 0024: Yes

Inquiry 0025: Do the components require to be explosion proof.

Answer 0025: No

Inquiry 0026: Can the Navy share the design of the bowl and jacket? We need sq area of bowl inside and outside, wall thickness of the bowl and its jacket, the gap thickness between the bowl and its jacket (fluid volume of jacket), etc. Is the bowl insulated if so, what is the K factor of the insulation. Wall thickness inside and outside? The Gap?

Answer 0026: 74 sqft jacketed area, 100 sqft outside area, no insulation, stainless steel construction (unsure what alloy)

Inquiry 0027: Is the bowl and jacket made of stainless steel or other?

Answer 0027: stainless steel, unknown alloy

Inquiry 0028: Ambient temp inside of building Answer 0028: 70F for the bowl, 50-120F for the BTCS

Inquiry 0029: Hottest temp outside of building Answer 0029120F

Inquiry 0030: Does the Navy have tower water if so, max temp, pressure, flow rate (GPM) and cleanliness. Does the Navy use tower water in the existing Bowl temperature control system?

Answer 0030: No, the BTCS should be a closed loop system

Inquiry 0031: The spec dictates heating up to 180 degrees in 30 minutes…what is the +/- degrees of accuracy required.

Answer 0031: +/- 5oF

Inquiry 0032: The spec dictates cooling down from 180 degrees to 70 degrees in 90 minutes…what is the +/-degrees of accuracy required.

Answer 0032: +/- 5oF

Inquiry 0033: During a complete shut down what time is required to bring the heating system up to temperature (180 F) Answer 0033: approx 30 minutes

Inquiry 0034: Need plant layout. Equipment layout, distance from outside to chiller to bowl.

Answer 0034: Approximately 160' piping from BTCS skid to bowl. Piping is carbon steel. Note that only the temperature control skid is in scope of this effort. Balance of piping and insulation will be refurbished by NSWCIHD.

Inquiry 0035: Will the piping from chiller to bowl run in ceiling, if so, need height of ceiling and structure of ceiling.

Answer 0035: 10' ceilings in mechanical rooms

Inquiry 0036: How will the Navy verify acceptance during runoff?

Answer 0036: Per solicitation, vendor is responsible for developing SAT/FAT plan. NSWCIHD will provide input/concurrence.

Inquiry 0037: Will the Navy offload the trucks when shipment arrives.

Answer 0037: No

Inquiry 0038: Will the Navy place the equipment and secure it to floor.

Answer 0038: No

Inquiry 0039: Are 3D drawings or prints of the bowl available as it sits on the floor? Require port sizes in and out for heat/cooling, etc.

Answer 0039: Limited information is available - see attached parts list and schematic

Inquiry 0040: Will there be any thermal reaction during mixing that will affect the bowl temperature that we will need to take into account (will the bowl temp exceed 180 degrees F) Inquiry 0041: What, where and how is the desired temperature of the bowl measured during acceptance testing?

Answer 0040: No Inquiry 0041: What, where and how is the desired temperature of the bowl measured during acceptance testing?

Answer 0041: Omega Type T thermocouple, mounted in the bowl wall directly adjacent to the water jacket

Inquiry 0042: Was the existing system already sufficient in heating and cooling the 420-gallon bowl in the specified time frames?

Answer 0042: Yes

Inquiry 0043: What is the value for distance of piping connecting the bowl to the heat transfer package? What material is the piping made of? What is the outer diameter of the piping (to determine insulation inner diameter)?

Answer 0043: Approximately 160' piping from BTCS skid to bowl. Piping is carbon steel.

Inquiry 0044: Is heat tracing required on the piping?

Answer 0044: No

Inquiry 0045: Which and what type of sensor is being used to verify temperature of the bowl?

Answer 0045: Omega Type T thermocouple, mounted in the bowl wall directly adjacent to the water jacket Inquiry 0046:b Please provide pictures of the electrical supply and disconnect panels. Please provide measurements for the distance of electrical conduit and wiring.

Answer 0046: See attached pictures

Inquiry 0047: If possible, please provide dimensional drawings of the existing system.

Answer 0047: Limited information is available - see attached parts list and schematic

Inquiry 0048: Is carbon steel piping sufficient for package construction?

Answer 0048: Yes

Inquiry 0049: Can the Navy provide a preferred supplier’s component list?

Answer 0049: See solicitation for interface/controls preferred suppliers. Hardware suppliers are vendor's preference.

Inquiry 0050: Will the components used on the project require certification of origin?

Answer 0050: No

Inquiry 0051: Are any of the electrical components required to be explosion proof?

Answer 0051: No

Inquiry 0052: Can the Navy share the design of the bowl and jacket? We need sq area of bowl inside and outside, wall thickness of the bowl and its jacket, the gap thickness between the bowl and its jacket (fluid volume of jacket), etc.

Answer 0052: 74 sqft jacketed area, 100 sqft outside area, no insulation, stainless steel construction (unsure what alloy), unsure of the fluid volume.

Inquiry 0053: Is the bowl and jacket made of stainless steel or other? If stainless what grade of stainless steel? If steel what grade of steel?

Answer 0053: Stainless, unknown alloy.

Inquiry 0054: Will the Navy supply drawings (schematics) with Bill of material of the existing heating and cooling unit?

Answer 0054: Limited information is available - see attached parts list and schematic

Inquiry 0055: Will the old skid plumbing connections need to be maintained? (Chiller, bowl supply, nitrogen supply) If so, precise dimensions will be needed.

Answer 0055: Connections can be moved as necessary

Inquiry 0056: What is the steam supply? (lbs./hr. and pressure)

Answer 0056: Existing supply is ~1700 lb/hr @ 50psig in/10 psig regulated. Note that NSWCIHD recently changed from superheated steam to saturated. TCS will have to be sized appropriately to accommodate this change.

Inquiry 0057: Remote Control System (By NSWCIHD), will new communication need to be run?

Answer 0057: NSWCIHD will do integration with existing control system

Inquiry 0058: SAT/Fat, Will the NSWCIHD provide a test plan?

Answer 0058: Per solicitation, vendor is responsible for developing SAT/FAT plan. NSWCIHD will provide input/concurrence.

Inquiry 0059: Who will be responsible for the removal and disposal of the old equipment when installing new?

Answer 0059: Contractor

Inquiry 0060: Will the Navy offload the trucks when the new shipment arrives?

Answer 0060: No

Inquiry 0061: Will the Navy place the new equipment and secure it to floor?

Answer 0061: No

Inquiry 0062: Is there asbestos in the wrapping of the existing pipe insulation?

Answer 0062: No

Inquiry 0063: Ambient temp inside of building?

Answer 0063: 70F in the operating building, 60-100F in the TCS building

Inquiry 0064: Hottest temp outside of building?

Answer 0064: 120F

Inquiry 0065: Does the Navy have tower water if so, max temp, pressure, flow rate (GPM) and cleanliness? Does the Navy use tower water in the existing Bowl temperature control system?

Answer 0065: No. BTCS should be closed loop.

Inquiry 0066: The spec dictates heating up to 180 degrees in 30 minutes…what is the +/- degrees of accuracy required?

Answer 0066: +/- 5oF

Inquiry 0067: The spec dictates cooling down from 180 degrees to 70 degrees in 90 minutes…what is the +/-degrees of accuracy required?

Answer 0067: +/- 5oF

Inquiry 0068: During a complete shut down what time is required to bring the heating system up to temperature (180 F)?

Answer 0068: approx 30 minutes

Inquiry 0069: During our visit on 3-6-2024 it was mentioned all piping and insulation from the heating/cooling unit to the bowl will be re-used and remain in place. Please verify.

Answer 0069: Only the temperature control skid is in scope of this effort. Balance of piping and insulation will be refurbished by NSWCIHD.

Inquiry 0070: Please supply linear feet and size of all piping from heating/cooling unit to the bowl.

Answer 0070: Approximately 160' total from skid to bowl. Note that only the temperature control skid is in scope of this effort. Balance of piping and insulation will be refurbished by NSWCIHD.

Inquiry 0071: Will the Navy conduct an acceptance test at our facility? If so, how will the Navy verify acceptance at our facility?

Answer 0071: Yes, acceptance testing will be performed at the contractor site. Specific test plan is left to the vendor to determine, with NSWCIHD concurrence.

Inquiry 0072: Require bowl inlet and outlet port sizes for heat/cooling. (1-1/2” NPT connections were mentioned to us on the 3-6-2024 visit) Please verify.

Answer 0072: 1-1/2" NPT connections, 1-1/4" quick connect fittings

Inquiry 0073: Will there be any thermal reaction during mixing that will affect the bowl temperature that we will need to consider (will the bowl temp exceed 180 degrees F during mixing)?

Answer 0073: No

Inquiry 0074: What, where and how is the desired temperature of the bowl measured during acceptance testing? (We were told thermocouple on the inside of bowl during our 3-6-2024 visit) Is there a drawing showing a section through the thermocouple and where it is located in the bowl?

Answer 0074: Omega Type T thermocouple, mounted in the bowl wall directly adjacent to the water jacket

Inquiry 0075: Are there other vertical mixers that will require replacement of their existing Bowl Temperature Control Systems in the future?

Answer 0075: Yes

Inquiry 0076: Will the Navy entertain a full electric heating system in any future applications instead of using steam?

Answer 0076: No

Inquiry 0077: What is the design and construction of the bowl being heated?

What is its annular volume?

Could you possibly supply a drawing of it?

What is the bowl made of?

How thick is the Bowl?

Is the thickness consistent throughout the bowl?

Answer 0077: We don't have specifics on the internal design of the bowl. The bowl has 74 sqft jacketed area, 100 sqft outside area, no insulation, stainless steel construction (unsure what alloy).

Inquiry 0078: What is the design of the bowl support system?

How many supports are attached to the bowl?

What are the supports made of?

Are the supports in contact with the Jacket or the Main Bowl structure?

Define location of supports and contact area with the Jacket or main Bowl.

Answer 0078: The lifting system attaches to the side flanges of the bowl, so there is minimal heat transfer area. Any losses through the support structure can be ignored.

Inquiry 0079: What is the Interstitial heat transfer jacket design, and process connections?

How thick is the flow path?

Is the flow path internally baffled?

Where at the jacket circulation water connections on the bowl?

What is the size, connection type and rating of these jacket circulation water connections?

Answer 0079: We don't have specifics on the internal design of the bowl. Bowl ports are 1-1/2" dia, with 1-1/4" quick connect fittings. The bowl is rated for 125 psi working pressure.

Inquiry 0080: How is the bowl and heat transfer jacket insulated?

What is the type and grade of insulation installed?

Is it jacketed?

Does it include a vapor barrier?

Answer 0080: The bowl has a water jacket, but does not have any insulation. There is no vapor barrier.

Inquiry 0081: What is ambient air temperature range of the room the bowl is operating?

Is the room typically closed and temperature controlled during bowl warmup and cooldown cycles?

What is the ventilation flow in and out of the room?

Answer 0081: The building temperature for the bowl is approximately 70F. It would normally be closed to air circulation during warmup/cooldown cycles.

Inquiry 0082: What is the linear pipe distance from the bowl to the Chiller(s) and heat transfer skids?

Answer 0082: Approximately 4 feet from chiller to HX skid.

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 25-Mar-2024 02:00 PM to 09-Apr-2024 02:00 PM.

(End of Summary of Changes)