Solicitation Amendment FA812521R00040002 SF 30 (1).pdf

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11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offers 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 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or electronic communication 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 letter or electronic communication, provided each letter or electronic communication 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 NUMBER AS DESCRIBED IN ITEM 14.

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

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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.)

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

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

6. ISSUED BY CODE 7. ADMINISTERED BY (If other than Item 6) CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBE

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

The purpose of this amendment is to post questions/answers and additional documents as Block 14 (Description of Amendment/Modification):

follows:

Question 1: Regarding bleed air silencers: It is understood that the sound source is the bleed air exiting the pneumatic piping system. What is the approximate unsilenced sound level? What is the required maximum sound level with silencer?

Answer 1: We have no actual measured data for the sound level of the air existing the two inch pipe. The sound level requirement is stated in the SOW. Attached are the drawings for one of the current silencers for the low flow Test Cells. The design shall be based on the flow of 12,000 pounds per hour as stated in the SOW. This flow is at 320 psig at 100 Degrees F. The back pressure can be 10 psig as stated in the SOW. The inlet air design pressure is 350 psig as stated in the SOW. The silencer shall be capable of operating at 750 degrees F. The current silencer was designed for less than 0.5 psig back pressure. The current silencers meet all requirements. The original manufacturer is no longer in business. Airvec Systems is a potential supplier of the required silencers.

Question 2: How many flange gaskets are to be replaced, apart the ones on the valves, for all 6 test cells?

Answer 2: The flange gaskets to be replaced are only for the replacement and new additional valves for each of the six Test Cells.

Question 3: What is the approximate insulation cover length to be replaced for each pipe size for all test cell (length for 2" pipe, length for 3"pipe, ...)?

Answer 3: The piping insulation jacket information is based on the approximate outer diameter of the piping with the current insulation. The diameters and lengths provided are only approximate.

8 inch diameter - 170 feet 10 inch diameter - 6 feet 11 inch diameter - 90 feet 14-1/2 inch diameter - 80 feet 16-/1/2 inch diameter - 65 feet

Question 4: What is the approximate area to be insulated for the ceiling, for each test cell?

Answer 4: There are 7 each 1-5/8 by 1-5/8 inch Unistrut channels in the ceiling that pass through to the next Test Cell. Therefore a total of 14 areas for insulation (two walls). This equates to an approximate area of 2.64 square inches with an 8 inch thick wall for each of the 14 penetrations.

Question 5: How much is the sound level reduction requirement for the ceiling insulation?

Answer 5: No specific requirement. The scope would be to reduce the sound as much as possible by using the highest density material available and possibly creating an air gap in the middle between the two adjacent Test Cells.

Question 6: Can you detail the ceiling and ceiling side structure type/design to be insulated (perhaps a picture?)

Answer 6: Attached is a picture.

Question 7: Where is the pressure transmitter enclosure located? Inside, outside, close to the building roof?

Answer 7: The pressure transmitter enclosures are located inside each Test Cell.

Question 8: What is the pressure transmitter enclosure ambient temperature variation?

Answer 8: A maximum range would be from approximately 70 degrees F to 170 degrees F. The current pressure transmitters have functioned very well for 17 years.

3001 STAFF DR STE 2S76

CP 405 734 9107

TINKER AFB, OK 73145-3303

UNITED STATES

Sheridan Robison, Email: sheridan.robison@us.af.mil Telephone: 405-582-5686

Email: darla.deangelis@us.af.mil Telephone: 339-2604