SOW DECISIVE Steam Piping (002).docx

S_53500_PpngRnwl_SWIT_SLE_0121_SWIT S20_0040_53500_PpngRnwl_SWIT_CJ_0821_629 WORK ITEM 1: Steam System Piping, Renew

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to renew designated steam piping, located in the Galley (Compartment 1-146-0-Q), Engine Room (Compartment 4-108-0-E), Head Tank Space (Compartment 02-81-2-Q), XO Stateroom (Compartment 01-72-0-L), Galley Closet (1-159-2-A), MPA Stateroom (Compartment 2-85-1-L), Starboard Chief’s Berthing (Compartment 2-96-1-L), Plenum Room (Compartment 02-90-0-Q), Auxiliary Shop (Compartment 2-140-1-Q), and Starboard Fan Room (Compartment 1-63-1-Q). Period of Performance dates (27 April 2022 – 10 June 2022).

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings Coast Guard Drawing 627 WMEC 535-001, Rev G, Diagram Steam, Feed and Condensate System Piping Coast Guard Drawing 627 WMEC 601-003, Rev E, General Arrangement – Second and Third Decks Coast Guard Drawing 627 WMEC 601-004, Rev D, General Arrangement Main & 01 Deck Coast Guard Publications Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2020, General Requirements Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2020, Welding and Allied Processes Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2020, Requirements for Preservation of Ship Structures Other References ASTM International (ASTM) F683, 2014, Standard Practice for Selection and Application of Thermal Insulation for Piping and Machinery Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), SP-58, 2018, Pipe Hangers and Supports – Materials, Design, Manufacture, Selection, Application and Installation

3. REQUIREMENTS

3.1 General. The Contractor must refer to the Coast Guard Drawings listed in Section 2 (References) as guidance in accomplishing this work item.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor must furnish and install all protective measures in accordance with SFLC Std Spec 0000, (Vessel component, space, and equipment protection).

3.1.4 Interferences. The Contractor must handle all interferences in accordance with SFLC Std Spec 0000, (Interferences). Known interferences include, but are not limited to the following:

· Piping insulation

· Steam kettles

· Steam piping

· Hot and cold water piping

· Deck

· Electrical cables

· Bulkhead panels

· Bulkhead insulation

· Installed furniture

· Ventilation ducting

· Bolted coverings

3.2 Fluid handling. The Contractor must remove and dispose of removed fluids from the affected piping system, in accordance with all applicable Federal, state, and local regulations.

WARNING

Do not drain ANY fluids, including fresh water, into any space, bilge, or exterior location.

3.3 Piping renewal particulars. The Contractor must accomplish the following tasks, as designated by the Coast Guard Inspector and using Coast Guard Drawings 627 WMEC 535-003, 627 WMEC 601-003 and 627 WMEC 601-004 as guidance:

· Crop and renew all supply and return Galley steam piping with associated valves, fittings, and through-deck connections between the steam kettles and underneath Auxiliary Shop (2-140-1-Q).

· Scheduled 40 Steel Piping

· 3/4” piping

· 4 Valves, 01 Check Valves

· (20) 90 Degree Elbows

· (2) T-Joints

· 03 Through Deck fittings

· Crop and renew approximately 30 feet of steam condensate return piping with associated fittings in Engine Room (4-108-0-E) – lower level overhead between frames 108 and 110.

· Scheduled 40 Steel Piping

· 1” piping

· 1” to 1.25” adapter

· 1” to ¾” reducer

· Crop and renew approximately 30 feet of supply and return steam piping in the Head Tank Space (02-81-2-Q), with associated fittings and through-deck connections into the XO Stateroom (01-72-0-L).

· Scheduled 40 Steel Piping

· ¾” piping

· (02) 90 Degree Elbows

· (02) 45 Degree Elbows

· Crop and renew approximately 20 feet of steam piping with associated fittings in the Galley Closet (1-159-2-A).

· Scheduled 40 Steel Piping

· ¾” piping

· (06) 90 Degree Elbows

· Clean out Valve

· Steam Trap

· Crop and renew approximately 10 feet of steam piping with associated fittings and bulkhead penetration in the MPA Stateroom (2-85-1-L) and Starboard Chief’s Berthing (2-96-1-L).

· Scheduled 40 Steel Piping

· ¾” piping

· (01) through Bulkhead fitting

· (02) T-Joints

· Crop and renew approximately 30 feet of steam piping with associated fittings in the Plenum Room (02-90-0-Q).

· Scheduled 40 Steel Piping

· ¾” piping

· (03) 90 Degree Elbows

· (01) through deck fitting

· Remove and install new Contractor-furnished steam supply valve in the Starboard Fan Room (1-63-1-Q).

· Robert Shaw Valve (picture attached)

3.3.1 Pipe hangers. Furnish, fit, and install new pipe hangers in accordance with MSS SP-58.

3.3.2 Pipe labeling. The Contractor must label affected piping as follows:

3.3.2.1 Stencil the following onto the pipe surfaces:

· Name of the piping system service.

· Destination, where feasible.

· Direction of flow, indicated by an arrow three inches long pointing away from the lettering (for reversible flow, point an arrow away from each end of the lettering).

3.3.2.2 Ensure all lettering and arrow(s) are as follows:

· In general, black color except white for dark-colored piping.

· Applied in conspicuous locations and preferably near control valves.

3.3.4 Pipe flushing. The Contractor must flush all new and disturbed piping with clean fresh water until all debris is removed but no longer than five minutes. Ensure flushing fluid is directed to move scale and foreign debris away from installed machinery to prevent possible damage upon operational testing. Submit a CFR documenting date and time of flushing process and level of pipe cleanliness.

3.3.4.1 Dispose of flushing fluid in accordance with all applicable Federal, state, and local regulations.

WARNING

Do not drain ANY Fluids (including fresh water) into any space, bilge, or exterior location.

3.4 Testing. After all work has been completed, the Contractor must, in the presence of the Coast Guard Inspector, accomplish the following tasks, and submit a CFR:

3.4.1 Hydrostatic test. After all authorized repairs, the Contractor must hydrostatically test all new and disturbed piping and components of the affected piping system in accordance with SFLC Std Spec 0740, Appendix C, Hydrostatic Test. Ensure zero leakage from or permanent deformation of pressure-containing parts by repairing all leaks, deformations, and discrepancies. Submit a CFR.

NOTE

Coast Guard personnel will operate all shipboard machinery and equipment.

3.4.2 Operational test, post repairs. After completion of work, the Contractor must thoroughly test, in the presence of the Coast Guard Inspector and demonstrate all items or shipboard devices that have been disturbed, used, repaired, altered, or installed to be in satisfactory operating condition. Submit a CFR.

3.5 Touch-up preservation. The Contractor must prepare and coat all new and disturbed surfaces to match existing adjacent surfaces in accordance with SFLC Std Spec 6310, (Touch-ups and minor coating repairs.)

3.6 Piping insulation installation. The Contractor must install new insulation materials over the exposed pipe surfaces at thicknesses appropriate to the application and temperature ranges specified in ASTM F683 Tables identified in Table 1 below and in accordance with details in NAVSEA Drawing 804-5959214:

Associated pipe hangers

· Valves

· Fittings

· Flanges

CAUTION

Use glass cloth lagging only in high traffic areas where insulation is subject to damage.

TABLE 1 - PIPING SYSTEMS INSULATION INSTALLATION REFERENCES

3.6.1 Coat the newly installed insulation using the system specified for “Insulation Surfaces, Fiberglass Sheet/Closed Cell PVC Foam” in SFLC Std Spec 6310, Appendix B (Cutter and Boat Interior Painting Systems).

4. NOTES

This section is not applicable to this work item.