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HomeMy WebLinkAbout15411.pdf BICKFORD OF CARMEL, IN 12/12/2012 WATER DISTRIBUTION PIPING 15411-1 SECTION 15411 WATER DISTRIBUTION PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification sections, apply to work of this section. 1.2 SUMMARY A. This Section specifies the water distribution piping system, including potable cold, hot, and recirculated hot water piping, fittings, and specialties within the building. The Contractor shall coordinate with Civil and connect building water service to potable water main provided by others. 1.3 COORDINATION A. The Contractor shall coordinate his work with other mechanical, electrical and plumbing systems and field measure, as required, prior to fabrication to facilitate a complete installation. 1.4 SUBMITTALS A. Product Data Submit manufacturers product data and catalogue information for each type of piping, valve, meter, backflow preventer, hydrant, tank, union, hose bib, etc intended for use within these piping systems. B. Test Reports Submit leak, chlorination, and bacteriological testing reports to the engineer for review upon completion of testing activities required under Part 3 Execution. C. Record Drawings At project closeout, submit record drawings of installed metal ductwork and ductwork products. D. Operating and Maintenance Manuals Submit Operating and Maintenance Manuals in accordance with Specification Section 15010 containing, but not limited too, all information required therein. 1.5 VERIFICATION A. Investigate the existing and proposed structural and finished conditions affecting the piping, and arrange the equipment accordingly, furnishing required fittings, offsets, and accessories. Route piping to avoid interference with other mechanical, electrical and plumbing systems. Consult with the Engineer before making any changes in the event it becomes necessary to make changes in pipe locations due to the building construction. Any such changes required shall be made without added cost to the Owner. 1.6 REGULATORY REQUIREMENTS A. Comply with the provisions of the following: 1. ASME B 31.9: "Building Services Piping" for, materials, products, and installation. 2. Safety valves and pressure vessels shall bear the appropriate ASME label. BICKFORD OF CARMEL, IN 12/12/2012 WATER DISTRIBUTION PIPING 15411-2 PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Subject to compliance with requirements, manufacturers offering products which may be incorporated in the Work include, but are not limited to, the following: 1. Water Meters: Badger Meter, Inc. Heresy Products, Inc. Neptune Water Meter Co. Rockwell Intl. 2. Balance Cocks: American Air Filter Co. Bell & Gossett ITT; Fluid Handling Div. Hammond Valve Corp. Milwaukee Valve Co., Inc. Spirax Sarco. Taco, Inc. 3. Bibbs and Faucets: Hammond Valve Corp. Lee Brothers; Div. Phelps Dodge Brass Co. Mansfield Plumbing Products. Nibco Inc. Prier Brass Mfg. Co. Tanner Mfg. Co. Watts Regulator Co. Woodford 4. Bladder/Diaphragm Tanks: Amtrol, Inc. Armstrong Pumps, Inc. Bell & Gossett ITT Taco, Inc. 5. Hydrants: Josam Mfg. Co. Smith, (Jay R.) Mfg. Co. Tyler Pipe; Sub. of Tyler Corp. Woodford Mfg. Co. Zurn Industries Inc., Hydromechanics Div. 6. Backflow Preventers: Febco Sales, Inc.; Subs. of Charles M. Bailey Co., Inc. ITT Lawler; Fluid Handling Div. Watts Regulator Co. 7. Relief Valves: Cash (A. W.) Valve Mfg. Corp. Conbraco Industries, Inc. Watts Regulator Co. Zurn Industries, Inc.; Wilkins-Regulator Div. 8. Y-Pattern Strainers: Armstrong Machine works. Hoffman Specialty ITT; Fluid Handling Div. Metraflex Co. Spirax Sarco. Trane Co. Watts Regulator Co. Victaulic Co. of America. (low pressure applications only) 9. Dielectric Unions: Perfection Corp. Watts Regulator Co. 2.2 PIPE AND TUBE MATERIALS A. Refer to Part 3, Article "PIPE APPLICATIONS" for identification of systems where the below materials are used. BICKFORD OF CARMEL, IN 12/12/2012 WATER DISTRIBUTION PIPING 15411-3 B. Drawn Temper Copper Tubing: ASTM B88, Type L. C. Annealed Temper Copper Tubing: ASTM B88, Type K. D. Crosslinked Polyethylene-Aluminum-Crosslinked Polyethylene (PEX-AL-PEX or PE-AL-PE) composite piping shall be allowable for pipe sizes 1 inch and lower. Piping inside diameter shall be equal to or greater than equal copper size piping. 2.3 FITTINGS A. Wrought-Copper Fittings: ANSI B16.22, streamlined pattern. 2.4 JOINING MATERIALS A. Solder Filler Metals: ASTM B 32, 95-5 tin-antimony. 2.5 GENERAL DUTY VALVES A. General duty valves (i.e., gate, globe, check, ball, and butterfly valves) are specified in Division 15100 “Valves." Special duty valves are specified below by their generic name; refer to Part 3 Article "VALVE APPLICATION" for specific uses and applications for each valve specified. 2.6 SPECIAL DUTY VALVES A. Balance Cocks Class 125, bronze body, bronze plug, screw driver operated, straight or angle pattern, with soldered end connections, enclosed in a flush mounting wall box. 2.7 PIPING SPECIALTIES A. Water Hammer Arresters Bellows type, with stainless steel casing and bellows, pressure rated for 250 psi, tested and certified in accordance with PDI Standard WH-201. B. Hose Bibb (HB-1, HB-2) WOODFORD Model 24 wall faucet for ½ “ or ¾ “ copper sweat cold or hot water supply, and vacuum breaker-backflow protected. Locate at 42 inches above floor unless otherwise noted. Unit to have chrome plated casting and chrome plated vacuum breaker. Hose bibs located exterior restrooms shall have removable handle. C. Recessed Non-Freeze Wall Hydrants (WH-1): WOODFORD Model 65 Series, automatic draining, freezeless wall hydrant, hose connection-3/4“, with vacuum breaker and ¾ “ water service line connection, enclosed in a flush mounting wall box. D. Unions ANSI B16.39, malleable iron, Class 150, hexagonal stock, with ball-and-socket joints, metal-to- metal bronze seating surfaces; female threaded ends. Threads shall conform to ANSI B1.20.1. E. Dielectric Unions Threaded or soldered end connections as required to suit application; constructed to isolate dissimilar metals, prevent galvanic action, and prevent corrosion. BICKFORD OF CARMEL, IN 12/12/2012 WATER DISTRIBUTION PIPING 15411-4 F. Relief Valves Provide proper size for relief valve, in accordance with ASME Boiler and Pressure Vessel Codes, for indicated capacity of the appliance for which installed. G. Combined Pressure-Temperature Relief Valves Bronze body, test lever, thermostat, complying with ANSI Z21.22 listing requirements ford temperature discharge capacity. Provide temperature relief at 210 deg. F, and pressure relief at 150 psi. H. Backflow Preventers Reduced pressure principle assembly consisting of shut-off valves on inlet and outlet, and strainer on inlet. Assemblies shall include test cocks, and pressure differential relief valve located between 2 positive seating check valves and comply with requirements of ASSE Standard 1013. I. Water Meter Provide water meter approved by the local utility. J. Bladder/Diaphragm Tank Tank shall be constructed of welded carbon steel for 125 psig working pressure, 375 deg. F maximum operating temperature. Separate air change from system water to maintain expansion capacity by means of a flexible diaphragm securely sealed into tank. Provide taps for pressure gauge, air charging fitting and drain fitting. Support vertical tanks with steel legs or base; support horizontal tanks with steel saddles. Tank, with taps and supports, shall be constructed, tested and labeled in accordance with ASME Pressure Vessel Code, Section VII, Division 1. Contractor shall select size and capacity of tank required for domestic cold water. Tank locations shall be as indicated in the Specifications and/or Drawings. Tanks shall be selected by Contractor per manufacturer’s recommendations and field conditions. PART 3 - EXECUTION 3.1 PIPE APPLICATIONS A. Provide and Install Water Meter and Backflow Preventor as Required. Install Type L, drawn copper tubing with wrought copper fittings, above ground, within building. Install Type K, seamless copper tubing with no joints below ground or within slabs. B. Provide and Install Bladder/Diaphragm tanks in the following system and locations: 1. SYSTEM LOCATION Domestic Cold Water On Cold Water Line Downstream of Entrance Backflow Preventer 3.2 PIPING INSTALLATION A. Drawings (plans, schematics, and diagrams) indicate the general location and arrangement of the piping systems. Location and arrangement of piping layout take into consideration pipe sizing and friction loss, expansion, pump sizing, and other design considerations. Piping must be coordinated with Architectural and Structural features and with the Mechanical and Electrical systems. Piping shall be run so as not to diminish exit access widths, corridors or equipment access and shall be run “as high as possible” so as to permit scheduled ceiling heights. So far as practical, install piping as indicated. B. In areas with suspended or dropped ceilings and in areas with concealed spaces above the ceiling, piping shall be concealed above ceilings. Piping shall be inspected, tested and approved BICKFORD OF CARMEL, IN 12/12/2012 WATER DISTRIBUTION PIPING 15411-5 before being concealed. Exposed piping in finished areas such as stairwells, mechanical rooms, storage rooms etc. shall be shall be insulated and jacketed in accordance Section 15250. 3.3 HANGERS AND SUPPORTS A. Hanger, supports, and anchors devices are specified in Section 15140 "SUPPORTS AND ANCHORS." Conform to the table below for maximum spacing of supports. Install hangers with the following minimum rod sizes and maximum spacing: Nom. Pipe Size Max. Span-Ft. Min. Rod Size-Inches 1/2 to 1-1/4 7 3/8 1-1/2 to 2 10 3/8 2-1/2 to 3 10 1/2 4 12 5/8 6 12 5/8 3.4 FIELD QUALITY CONTROL A. Piping System Test All water distribution and piping systems shall be tested prior to closing excavations, walls, ceilings, covering with insulation, or otherwise being concealed such that an inspection for leaks would be hindered. The Architect/Engineer, or his representatives, may require the removal of plugs, caps, valves, etc. to ascertain whether or not the pressure has reached all parts of the system. B. Notice The Contractor shall provide the Architect/Engineer two (2) days written notice prior to commencing testing operations, to allow the opportunity for the Architect/Engineer and/or his representative(s) to observe the testing. The Contractor shall coordinate testing operations with the Architect/Engineer and/or his representative(s). Failure to provide the requisite notice may result in the Contractor, at the Architect/Engineer’s option, being required to repeat the test at no additional cost to the Owner. C. Testing Test water distribution piping for leaks and defects all new water distribution piping systems. Cap and subject the piping system to a static water pressure of 50 psig above the operating pressure without exceeding the pressure rating of the piping system materials, minimum 150 psig. Isolate the test source and allow to stand for a period of 4 hours. Leaks and loss in test pressure constitute defects which must be repaired. Repair all leaks and defects using new materials and retest system or portion thereof until satisfactory results are obtained. Prepare reports for all tests and required corrective action. 3.5 ADJUSTING AND CLEANING A. Purge all new water distribution piping systems and parts of existing systems, which have been altered, extended, or repaired prior to use. Use the purging and disinfecting procedure prescribed by the authority having jurisdiction, or in the case a method is not prescribed by that authority, the procedure described in either AWWA C601, or AWWA D105, or as described below may be used: B. Flush all the new piping system with clean, potable water until dirty water does not appear at the points of outlet. Fill all new system piping or part thereof, with a water/chlorine solution containing at least 50 parts per million of chlorine. Isolate (valve off) the system, or part thereof, and allow to stand for 24 hours. BICKFORD OF CARMEL, IN 12/12/2012 WATER DISTRIBUTION PIPING 15411-6 C. Drain the system, or part thereof, of the previous solution, and refill with a water/chlorine solution containing at least 200 parts per million of chlorine and isolate and allow to stand for 3 hours. Following the allowed standing time, flush the system with clean potable water until chlorine does not remain in the water coming for the system. D. Submit water samples in sterile bottles to the authority having jurisdiction. Repeat the procedure if the biological examination made by the authority shows evidence of contamination. E. Prepare reports for all purging and disinfecting activities. 3.6 LABELING A. Piping in exposed areas and where concealed by suspended ceiling systems shall be labeled with Specification Section 15190 every 25 Ft for extended runs and a minimum of one time per room. END OF SECTION