210_MP107_R1_AMENDMENT 008.pdf
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- Solicitation number
- N6247026R0012
About this file
This is a NAVFAC (Naval Facilities Engineering Systems Command) mechanical drawing for fire protection and attic mechanical piping installation at Portsmouth Naval Shipyard in Kittery, Maine. The document is Drawing No. MP107, designated as Sheet B1, and depicts the Attic Mechanical Piping Plan - West for Building 60 Repairs at a scale of 1/8" = 1'-0".
The drawing specifies the installation of hot water supply and return (HWS/R) piping with 3/4" diameter branches to terminal heater units (designated UH 3-1, UH 3-2, UH 3-3, and UH 3-4) using anchors and U-bend expansion loops. Key requirements include: providing insulated backer for thermostat sensor; running HWS/R piping near the attic floor on stancheons secured to support framing; providing PVC jacket on HWS/R piping up to 6 feet above the walkway; configuring nested U-bend expansion loops with HWS having 48-inch sides and 24-inch ends, with HWR U-bends having 48-inch sides; and providing delegated design for expansion anchor points for review and approval. The document references structural drawing SF 105 for support framing details and mechanical drawing M-001 for legends and abbreviations. The drawing was finalized on October 1, 2025, with Amendment 008 approved on March 10, 2026. The project number is 1740579, and the document maintains an UNCLASSIFIED designation.
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Text version
ROOF BELOW
T
T
UH
3-4
B5 M-502
T T
3/4" HWS/R
EXISTING WOOD
PLANK WALKWAY
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3/4" HWS/R (TYP)
UH
3-3
B5 M-502
UH
3-1
B5 M-502
UH
3-2
B5 M-502
2 3 1 1/4" HWS/R 2 3 1 1/4" HWS/R 2 3
EXISTING STEEL
TRUSS (TYP)
ANCHORS
1 1/4" HWS/R 2 3 1 1/4" HWS/R DN
HWS
HWR
HWS
HWR
5ANCHORS 5 U-BEND EXPANSION LOOPS4
SATISFACTORY TO DATE
APPROVED
FOR COMMANDER NAVFAC
SEAL
A
B
C
D
1 2 3 4 5
1 2 3 4 5
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SHEET
NAVFAC DRAWING NO.
DESIGNER
DRAWN BY
CHECKED BY
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DRAWFORM REVISION: 14 SEP 2023
DESIGN MANAGER
PROJECT MANAGER
FEAD/PM&E
FIRE PROTECTION
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UNCLASSIFIED
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ACTIVITY
1740579
T. CARLETON
L. LYONS
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GENERAL NOTES
1/8" = 1' - 0" 0 5' 10' 15' 30'
GRAPHIC SCALE
KEY PLAN
CHECK GRAPHIC SCALE BEFORE USING
MATCH LINE
PLAN
NORTH
1 PROVIDE INSULATED BACKER FOR T-STAT SENSOR.
RUN HWS/R PIPING NEAR ATTIC FLOOR ON STANCHEONS SECURED TO SUPPORT FRAMING FROM HWS/R RISERS TO ATTIC UNIT HEATER 3-1. REFER TO
STRUCTURAL DRAWING SF 105 FOR SUPPORT FRAMING DETAILS.
PROVIDE PVC JACKET ON HWS/R PIPING UP TO 6'-0" ABOVE WALKWAY.
PROVIDE NESTED U-BEND EXPANSION LOOPS WITH HWS HAVING 48" SIDES AND A 24" END. HWR U-BEND TO HAVE 48" SIDES.
PROVIDE DELEGATED DESIGN FOR EXPANSION ANCHOR POINTS FOR REVIEW AND APPROVAL.
SCALE: 1/8" = 1'-0"
B1
ATTIC MECHANICAL PIPING PLAN - WEST
KEYNOTES
1.
2.
SEE M-001 FOR MECHANICAL LEGENDS, ABBREVIATIONS AND GENERAL NOTES.
HWS/R TERMINAL HEATER BRANCH PIPING IS 3/4" UNLESS OTHERSWISE INDICATED.
(THIS SHEET ONLY)
M A
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| Sheets |
| M-701 - MECHANICAL CONTROL DIAGRAMS 1 |
| MD106 - FIRST FLOOR MEZZANINE MECHANICAL REMOVALS PLAN - WEST |
| MD108 - SECOND FLOOR MEZZANINE MECHANICAL REMOVALS PLAN |
| MD109 - ATTIC MECHANICAL REMOVALS PLAN |
| MP107 - ATTIC MECHANICAL PIPING PLAN |
| P-401 - ENLARGED PLUMBING PART PLANS 1 |
| P-601 - PLUMBING SCHEDULES AND DETAIL |
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