RFC 3 - N4523A21R056 Caisson 5 Answer.pdf
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- Solicitation number
- N4523A21R1056
About this file
This document contains a federal contract opportunity solicitation and related request for specification clarification. The solicitation is for maintenance, repair, and preservation work on Caisson 5, including docking the 147-foot vessel, blasting and preserving the hull and tanks, hull and structural repairs, electrical system replacements, machinery replacements, and undocking. The period of performance is from October 2021 to February 2022. The Navy seeks responses from ship repair facilities located in the Puget Sound region of Washington capable of drydocking the vessel. The contract will be awarded as fixed-price and lowest price technically acceptable. Offerors must be registered in the System for Award Management and requests for reference drawings are due by February 27, 2021. The related request for specification clarification provides responses to contractor questions on valve specifications and classifications.
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REQUEST FOR SPECIFICATION CLARIFICATION (RFC)
DATE OF REQUEST: 2/25/2021 QUESTION NO: 003
REQUIREMENT: CAISSON 5 REQUISITION NO.: N4523A21R1056
ITEM NO: 546-21-001
TITLE: Valves; replace
ISSUING OFFICE POC (CODE 440.22):
Brian Fergus brian.fergus@navy.mil
Steve Barry steven.e.barry@navy.mil
PARA. NO: 3.1.1, 3.1.1.2,
3.1.1.3
PAGE NO: 55 CONTRACTOR:
PLANNER’S NAME: ATTACH. NO: CONTRACTOR POC & PHONE:
CONTRACTOR QUESTION:
Valves are identified as follows:
Paragraph 3.1.1
Mueller Co. R-2361-6 OS&Y (outside stem & yoke) Resilient Wedge Gate Valve with Flanged Ends (EPDM Disk, Stainless Steel 316 Stem)
Mueller only makes the resilient wedge gate valves in Non-Rising Stem (NRS)
Paragraph 3.1.1.2
Existing 24” Valve has a face to face flange measurement = 13”
Actual Mueller A-2361-6 24” valve has a face to face flange measurement = 20”
Paragraph 3.1.1.3
Existing 10” Valve has a face to face flange measurement = 10-1/2”
Actual Mueller A-2361-6 10” valve has a face to face flange measurement = 13”
The work specification also lists all existing flanges to be Class 150, however all Mueller valve flanges are Class 125.
Please clarify the correct valves and flanges to be installed.
DO NOT WRITE BELOW THIS LINE
SPEC CHG: Y DWG/REF CHG. N RQMTS CHG: N MAT'L CHG: N
TECHNICAL REVIEW: SERIAL NO: 003
mailto:brian.fergus@navy.mil mailto:steven.e.barry@navy.mil
Paragraph 3.1.1
Mueller valve R-2361-6 (OS&Y) has an outside stem and yoke (OS&Y). This design is referred to as a rising stem in paragraph 3.1.1. With an OS&Y valve, as the stem turns, it moves into or out of the valve, which also moves the gate to open or seal the valve.
Paragraph 3.1.1.2 and 3.1.1.3
Contractor to provide valves that meet the dimensions of paragraph 3.1.1.2 and 3.1.1.3 and that meet the performance characteristics of Mueller Valve R-2361-6 OS&Y as stated in paragraph 3.1.1.
Contractor may elect to provide alternative valves that meet the performance characteristics Mueller R-
2361-6 OS&Y. All valves provided shall meet the dimensions of paragraph 3.1.1.2 and 3.1.1.3.
Valve Class
Valves may be either class 125 or class 150 and must be compatible with the dimensions of 3.1.1.1, 3.1.1.2, 3.1.1.3, 3.1.1.4 and 3.1.2.1.
ALL REQUESTS FOR CLARIFICATION MUST BE RECEIVED BY THE ISSUING OFFICE POC NO
LATER THAN THE DATE & TIME IDENTIFIED IN THE REQUEST FOR PROPOSAL.
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