ࡱ> _ Bubjbjzyzy G6b6bl) 8H4|LJ(dJJJJJJJ$~K4N+J   +J@J$$$ J$ J$$}C@QG 8E(IVJ0JElN NPQGiGN}Gt  $     +J+J"x   J    N          B : SECTION 22 60 53 - Laboratory Vacuum and Gas Piping GENERAL RELATED DOCUMENTS Drawings and general provisions of the Contract, including General Conditions and Division01 Specification Sections, apply to this Section. SUMMARY This section includes the furnishing of all labor and materials necessary for complete installation, cleaning, testing and certification of laboratory vacuum, and gas distribution and monitoring systems, including; piping, inlets, outlets, alarms, valves, supports, labeling, identification and all related accessories. Laboratory gas systems include Oxygen, Compressed Air, Carbon Dioxide and Nitrogen. REFERENCE STANDARDS The latest published edition of a reference shall be applicable to this Project unless identified by a specific edition date. All reference amendments adopted prior to the effective date of this Contract shall be applicable to this Project. All materials, installation and workmanship shall comply with the applicable requirements and standards addressed within the following references: NFPA 45 Fire Protection For Laboratories Using Chemicals NFPA 99 Standard for Health Care Facilities. NFPA 70 National Electric Code ASTM B819 Seamless Copper Tube for Medical Gas Systems. AWS A5.8 Brazing Filler Metal. CGA V5 Diameter Index Safety System. Comply with all Federal and State regulations applicable to this installation. QUALITY ASSURANCE All materials, equipment, installation, and testing shall be in strict accordance with NFPA 99.3rd party certification is not required. Manufacturers name and pressure rating shall be permanently marked on valve body. Products of same type shall be by one manufacturer. All valves, valve boxes, inlets, outlets, alarms and associated components shall be supplied by a single manufacturer and shall be fully compatible with existing system and service devices. Verify compatibility of all new components with existing system and services. Maintain one copy of each Contract Document on Site. Prior to any installation Work, the installer of laboratory vacuum and gas piping shall provide and maintain documentation on the job Site for the qualification of brazing procedures and individual brazers as required by NFPA 99. SUBMITTALS General: All submitted data shall be specific to this project and identified as such. Generic submittal data will not be accepted. Product Data: Manufacturers descriptive literature, illustrations and installation instructions for all components included within this project indicating compliance with applicable referenced standards, size, dimensions, model number, electrical characteristics and connection requirements. Shop Drawings: Wiring diagrams for laboratory vacuum and gas alarm systems. Differentiate between manufacturer-installed and field-installed wiring. Record Documents: Record actual locations of piping, valves, alarm sensors, alarm panels, station inlets and outlets. Prepare and provide valve charts. Provide record of test procedures and the results of all tests indicating room and area designations, dates of the tests, and names of persons conducting the tests. Brazer Certificates: Installation Contractor shall present written documentation (less than 3 years old) from a recognized agency trained in administering and testing brazing techniques as per AWS B2.2 or ASME Section IX, certifying that all brazers have been thoroughly trained and tested in the complete installation of medical gas systems. Product Certificates: The installer shall furnish documentation certifying that all installed pipe, valves, fittings, station outlets, and other piping components in laboratory gas systems shall have been cleaned for oxygen service in accordance with CGA 4.1, Cleaning Equipment for Oxygen Service and NFPA 99. Submit letter signed by manufacturer certifying that copper tubing complies with NFPA 99. Inspection and Test Reports: Furnish documentation that all installer inspections and tests required by NFPA 99 have been performed. Identify test type, procedure and results. Independent Third Party System Verification Testing Agency Reports and Certification: Contractor shall perform and meet the requirements of NFPA 99, except independent third party certification is not required. Provide full written description of manufacturers warranty. Operation and Maintenance Data: Operation Data: Include manufacturers installation and operating instructions. Maintenance Data: Servicing and testing requirements, inspection data, exploded assembly views, Record Documents, inspection data, test reports, installation instructions, replacement part numbers and availability, location and contact numbers of service depot. delivery, storage and handling Tubes, valves, fittings, station outlets, and other piping components in laboratory gas systems shall have been cleaned for oxygen service by the manufacturer prior to installation in accordance with CGA 4.1, Cleaning Equipment for Oxygen Service, except that fittings shall be permitted to be cleaned by a supplier or agency other than the manufacturer. Each length of tube shall be delivered plugged or capped by the manufacturer and kept sealed until prepared for installation. Fittings, valves, and other components shall be delivered sealed, labeled, and kept sealed until installation. Where contamination is known to have occurred, the materials affected must be removed and replaced with new materials that are cleaned and sealed by the manufacturer or supplier. qualifications General: Companies specializing in manufacturing, installing, testing, certifying and servicing the products and systems specified in this Section shall have minimum five (5) years documented experience and be certified as required by the Texas Department of Health and NFPA 99. Manufacturers: Firms regularly engaged in manufacture of laboratory vacuum and gas systems equipment and products, of types, materials, and sizes required, whose products have been in satisfactory use in similar service for not less than five (5) years. References may be required. Equipment Supplier: The laboratory vacuum and gas systems equipment supplier shall provide the services of a manufacturer authorized product specialist to periodically coordinate with the installing Contractor during initial installation of the pipeline systems and have a service organization located within 50 miles of the Project Site to provide ongoing service support to MD Anderson Cancer Center after project completion. Installer: Firm with at least five (5) years of successful installation experience on projects with laboratory vacuum and gas systems work similar to that required for Project. All installations of the piping systems shall be done only by, or under the direct supervision of a holder of a master plumber license or a journeyman plumber license with a medical gas piping installation endorsement issued by the Texas State Board of Plumbing Examiners. All installers of laboratory vacuum and gas system components must be qualified in accordance with the requirements of NFPA 99 and ASSE 6010, Medical Gas Systems Installers Professional Qualifications Standard. In addition, all brazers of laboratory gas system piping must be qualified in accordance with the requirements of either Section IX, Welding and Brazing Requirements of the ASME Boiler and Pressure Vessel Code, or AWS B2.2, Standard for Brazing Procedure and Performance Qualification. System Verification Testing Agency: Testing shall be conducted by a party technically competent and experienced in the field of laboratory gas and vacuum pipeline testing and meeting the requirements of ANSI/ASSE Standard 6030, Medical Gas Verifiers Professional Qualifications Standard. Quality control standards of testing agency shall be in strict accordance with American National Standards Institute (ANSI) Q-91. Firm shall be regularly engaged in the testing and certification of similar facilities with a minimum of five (5) years of experience. Installer of axially swaged fittings shall be certified by a recognized agency trained in administering axially swaged fitting installation techniques. Installation Contractor shall present written documentation of certification (less than 3 years old). scheduling Schedule Work to ensure installation is complete, tested and certified prior to Substantial Completion. PRODUCTS GENERAL All materials shall meet or exceed all applicable referenced standards, federal, state and local requirements, and conform to codes and ordinances of authorities having jurisdiction. pressurized laboratory gas piping All pipe shall be Type "K", ASTM B819, hard drawn seamless copper medical gas tubing. Pipe shall be identified by the manufacturers markings, OXY, MED, or OXY/MED and with size designated reflecting nominal inside diameter. Turns, offsets, and other changes in direction shall be made with brazed wrought copper capillary fittings complying with ANSI B16.22, Wrought Copper and Copper Alloy Solder-Joint Fittings; or brazed fittings complying with MSS SP-73, Brazed Joints for Wrought and Cast Copper Alloy Solder Joint Pressure Fittings. Cast copper alloy fittings shall not be permitted. Brazed joints shall be made using a brazing alloy that exhibits a melting temperature in excess of 538 degrees C (1000 degrees F). Copper-to-copper joints shall be brazed using a copperphosphorus or copperphosphorussilver brazing filler metal (BCuP series) without flux. Flux shall only be used when brazing dissimilar metals such as copper and bronze or brass, using a silver (BAg series) brazing filler metal. Brazing alloy comply with ANSI/AWS A.5.8, Specification for Brazing Filler Metal. Threaded joints in laboratory gas distribution piping shall be limited to connections to pressure/vacuum indicators, alarm devices, and source equipment. All threads shall be tapered pipe threads complying with ANSI B1.20.1, Pipe Threads, General Purpose and be made up with polytetrafluoroethylene (such as Teflon) tape or other thread sealant recommended for oxygen service, with the sealant applied to the male threads only. Where threaded nipples are required these shall be I.P.S. brass. The use of brass axially swaged, elastic strain preload fittings may be used when making connections to existing piping sizes 2 and smaller. Non-braze fittings shall provide metal to metal seal having pressure and temperature ratings not less than that of a brazed joint and when complete are permanent and nonseparable. Axially swaged fittings shall be cleaned and sealed for oxygen service and manufactured by Lokring Technology LLC. Straight-threaded connections, including unions, flared and compression-type connections, including connections to station outlets and inlets, alarm devices, and other components shall not be permitted. All pipe and fittings shall be supplied cleaned and sealed for oxygen service. laboratory vacuum piping All vacuum piping sizes 1-1/2 inches and smaller shall be as specified for pressurized laboratory gas pipe. Vacuum pipe sizes 2 inches and larger shall be Type "K" or L hard-drawn seamless copper, either ASTM B 819 medical gas tube or ASTM B 88 water tube. Turns, offsets, and other changes in direction shall be made with brazed wrought copper capillary fittings complying with ANSI B16.22, Wrought Copper and Copper Alloy Solder-Joint Fittings; or brazed fittings complying with MSS SP-73, Brazed Joints for Wrought and Cast Copper Alloy Solder Joint Pressure Fittings. Cast copper alloy fittings shall not be permitted. Brazed joints shall be made using a brazing alloy that exhibits a melting temperature in excess of 538 degrees C (1000 degrees F). Copper-to-copper joints shall be brazed using a copperphosphorus or copperphosphorussilver brazing filler metal (BCuP series) without flux. Flux shall only be used when brazing dissimilar metals such as copper and bronze or brass, using a silver (BAg series) brazing filler metal. Brazing alloy comply with ANSI/AWS A.5.8, Specification for Brazing Filler Metal. Threaded joints in laboratory vacuum distribution piping shall be limited to connections to pressure/vacuum indicators, alarm devices, and source equipment. All threads shall be tapered pipe threads complying with ANSI B1.20.1, Pipe Threads, General Purpose and be made up with polytetrafluoroethylene (such as Teflon) tape or other thread sealant recommended for oxygen service, with the sealant applied to the male threads only. Where threaded nipples are required, these shall be I.P.S. brass. Close nipples shall not be installed. The use of brass axially swaged, elastic strain preload fittings may be used when making connections to existing piping sizes 2 and smaller. Non-braze fittings shall provide metal to metal seal having pressure and temperature ratings not less than that of a brazed joint and when complete are permanent and nonseparable. Axially swaged fittings shall be cleaned and sealed for oxygen service and manufactured by Lokring Technology LLC. Mechanically formed, drilled and extruded tee-branch connections shall not be permitted. Couplings and fittings incorporating an o-ring seal shall not be permitted. Roll-grooved joints shall not be permitted. Straight-threaded connections, including unions, flared and compression-type connections, including connections to station outlets and inlets, alarm devices, and other components shall not be permitted. laboratory vacuum and gas valves General: All valves for pressurized gases and valves for vacuum services 1-1/2 inches and smaller shall be supplied cleaned and sealed (bagged) for oxygen service by the manufacturer. Valves for vacuum service sizes 2 inches and larger will not be required to be cleaned and sealed for oxygen service. Provide quantity and size of valves as indicated on Contract Drawings and as required by NFPA 99. Laboratory vacuum and gas valves, zone valve boxes and related accessories shall be manufactured by Tri-Tech Medical, Pattons Medical, Amico, BeaconMedaes, or Owner approved equal. Shut-off Valves: Shut-off valves shall be full port, double seal, ball-type three piece design, designed for vacuum to 29 inches Hg and working pressures up to 600 WOG with bronze/brass body, blow-out proof stem and chrome plated brass ball and be serviceable in the line. Valve body shall have Teflon (TFE) material ball seat and stem seals. Seats/seals, lubricants and valve material shall be compatible with oxygen, nitrous oxide, compressed air, carbon dioxide, nitrogen and mixtures thereof at continuous pressure up to 600 psig and up to 100 degrees Fahrenheit. Valve shall be provided with and operated by a lever-type handle requiring only a quarter turn from a fully open position to a fully closed position. All valves shall be equipped with type "K" washed and degreased copper pipe stub extensions at both the inlet and outlet sides of the valve port to facilitate installation. On outlet pipe stub provide 1/8 inch FPT tap with plug to accept gauge or nitrogen purge connection. Stub extensions shall be supplied to Site capped at both ends. Valve tags showing the appropriate gas services, pressure rating, etc. shall be attached to each valve. Each shut-off valve shall be provided with locking kit. Laboratory gas OUTLETs General: Laboratory gas outlets shall be modular, DISS screw thread recessed type equal to BeaconMeds Series B. Threaded DISS connectors shall be per CGA V-5 standard. The rough in assembly shall be of modular design and include a gas specific 16 gauge steel mounting plate designed to permit on-site ganging of multiple outlets, on 5 inch center line spacing. A machined brass outlet block shall be permanently attached to the mounting bracket to permit the 1/2 OD, type-K copper inlet to swivel 360 degrees for attachment to the piping system. The rough in assembly shall contain a double seal to prevent gas leakage between the rough in and latch-valve assemblies after the wall is finished. A single o-ring seal shall not be acceptable. Outlet stations shall have a die cast light gray epoxy powder coated trim plate or hook plate. The hook plate shall have a retractable arm and provide the trim for each outlet. The hook plate shall specifically fill the space between adjacent outlets. Furnish indexed rough in and gas specific latch valve with non-interchangeable safety keying and with color coded gas service identification. The safety keying index pins shall be permanently captured in the latch assembly and non-removable without destroying the outlet. Designs with index pins molded in plastic are not acceptable. The complete outlet shall be made, cleaned and packaged to NFPA 99 Standards, UL Listed and CSA certified. Laboratory gas outlets shall be cleaned for oxygen service in accordance with CGA Pamphlet G-4.1. The assembly shall be capped and the finish assembly poly bagged for shipment. The latch-valve assembly shall telescope up to 3/4 to allow for variation in finished wall thickness from 1/2 to 1-1/4. All inlets and outlets shall be factory assembled, tested, cleaned for oxygen service, and supplied with temporary protective covers and packages to protect outlet during handling and installation at the job Site. Laboratory inlets and outlets and related accessories shall be manufactured by Tri-Tech Medical Pattons Medical, Amico, Beacon Medaes, or Owner approved equal. Each vacuum outlet shall have an adjacent slide for supporting vacuum bottle assembly. Ceiling Inlets and Outlets with Hose Drops: Ceiling outlets for oxygen, nitrous oxide, laboratory compressed air, vacuum and evacuation services shall be Diameter Index Safety System (DISS) recessed type and only accept corresponding DISS type gas specific adapters. Provide an upper hose assembly with a reel-type retractor kit. Hose shall terminate 6'-4" above finished floor. Hose assembly shall consist of a UL-listed high-pressure color-coded conductive hose with a DISS nut and gland on the upper end. Provide each hose with a heavy-duty chain type dual retractor for pressure gases and for vacuum. Retractors made of stainless cable are not acceptable. Allow an extra __ of hose length for retractors. Outlets shall be field assembled with sequences and services indicated. Casework Inlets and Outlets: Laboratory casework fittings will be furnished to the jobsite by the laboratory equipment supplier, with necessary holes cut in the laboratory equipment. This Contractor shall receive, store and install the fittings and make all necessary connections thereto in accordance with manufacturers published instructions. line gauges General: Gauges shall comply with ANSI/ASME B-40.1 and be constructed of materials compatible with medical vacuum and gas applications. Gauge housings shall be drawn steel with black, corrosion-resistant paint. Dial shall be 4-1/2 inch in diameter with white background and black markings. Pointer shall be aluminum with black finish. Gauge movement shall be brass construction. Bottom of gauge shall be provided with inch 18 NPT 2A brass connection. Provide Diameter Index Safety System connection kits with all appropriate fittings for connecting gauges to pipelines. Laboratory vacuum and gas line gauges and DISS connection kits shall be manufactured by Tri-Tech Medical, Pattons Medical, Amico, Beacon Medaes, or Owner approved equal. Vacuum Line Gauges Vacuum bourbon tube shall be beryllium copper and soft soldered. Gauge shall register 0 30 inches HG. Pressure Line Gauges Pressure bourbon tube shall be phosphor bronze and soft soldered. Gauge shall register 0 100 psig for all laboratory gases except Nitrogen. Gauge shall register 0 300 psig for Nitrogen gas. Gauges for positive pressure gases shall be cleaned and sealed for oxygen service. underground warning tape) Minimum 3 inch wide polyethylene detectable type marking tape. The tape shall be resistant to alkalis, acids and other destructive agents found in soil and impregnated with metal so that it can be readily recognized after burial by standard locating equipment. Lamination bond of one (1) layer of Minimum 0.35 mils thick aluminum foil between two (2) layers of minimum 4.3 mils thick inert plastic film. Minimum tensile strength: 63 LBS per 3 IN width. Minimum elongation 500 percent. Provide continuous yellow with black letter printed message repeated every 16 to 36 inches warning of pipe by specific name buried below (e.g.: "CAUTION OXYGEN LINE BURIED BELOW"). Manufactured by Reef Industries Terra Tape or approved equal. EXECUTION INSTALLATION Installation shall meet or exceed all applicable federal, state and local requirements, referenced standards and conform to codes and ordinances of authorities having jurisdiction. All installation shall be in accordance with manufacturers published recommendations. Exercise great care in the storage and handling of all materials and in the condition of tools used in cutting and reaming to prevent oil or grease or any contaminants from being introduced into tubing. The interior surfaces of tube ends, fittings, and other components that were cleaned for oxygen service by the manufacturer, but become contaminated prior to being installed, shall be recleaned on-Site by the installer by thoroughly scrubbing the interior surfaces with a clean, hot wateralkaline solution, such as sodium carbonate or trisodium phosphate 450 g to 11 L (1 lb to 3 gal) of potable water and thoroughly rinsing them with clean, hot potable water. Material that has become contaminated internally and is not clean for oxygen service shall not be installed. The exterior surface of all tubes, joints and fittings shall be cleaned prior to brazing with non-abrasive pads by washing with hot water after assembly to remove any surface oxides or excess flux and provide for clear visual inspection of brazed connections. A visual inspection of each brazed joint shall be made to assure that the alloy has flowed completely around the joint at the tube-fitting interface. Where flux has been used, assure that solidified flux residue has not formed a temporary seal that could hold test pressure. Apply flux sparingly to the clean tube only and in a manner to avoid leaving any excess inside of completed joints. (NOTE: Ensure proper ventilation. Some BAg series filler metals contain cadmium, which, when heated during brazing, can produce toxic fumes.) Joints shall be brazed within one (1) hour after the surfaces are cleaned for brazing. While being brazed, all pressurized laboratory gas system piping joints shall be continuously purged with oil-free, dry Nitrogen to prevent the formation of copper oxide on the inside surfaces of the joint. The purge shall be maintained until the joint is cool to the touch. The final connection of new piping to an existing, in-use pipeline shall be permitted to be made without the use of a nitrogen purge. Bury all underground piping at least three (3) feet below finished grade and fully encase within schedule 40 PVC piping sleeve. Provide a continuous detectable warning tape immediately above buried lines. Warning tape shall clearly identify the pipeline by specific name. A continuous warning means shall also be provided on tamped backfill above the pipeline at approximately one-half the depth of bury. Do not install piping in the same trench with other buried utilities. The minimum horizontal clearance between laboratory pipe and parallel buried utility pipe shall be eight (8) feet. Do not install pipe through catch basins, vaults, manholes or similar underground structures. Piping shall not be installed in kitchens, electrical switchgear rooms, elevator shafts, and areas with open flames. Memory-metal couplings shall not be installed within eight inches of a brazed joint. Shut-off valves installed for future connections shall be provided with downstream piping closed with a brazed cap and sufficient tubing allowance for cutting and re-brazing. Branch takeoffs from horizontal piping shall be taken off above the centerline of the main or branch pipe and rise vertically or at an angle of not less than 45 degrees from vertical. Support all piping in accordance with NFPA 99 and Contract Documents. Pressure and vacuum indicators shall be readable from a standing position. labeling Label all piping, valves, station inlets and outlets, and alarms in accordance with NFPA 99 requirements and Contract Documents. Re-label existing shut-off valves when modifications are made changing the areas served. New labels shall be in accordance with NFPA 99 and Contract Documents. TESTING and inspection Inspection and testing shall be performed on all new piped gas systems, additions, renovations, temporary installations, or repaired systems, to assure the facility, by a documented procedure, that all applicable provisions of NFPA 99 have been adhered to and system integrity has been achieved or maintained. After brazing, the outside of all joints shall be cleaned by washing with water and a wire brush to remove any residue and permit clear visual inspection of the joint. Each brazed joint shall be visually inspected after cleaning the outside surfaces. Brazed joints identified as defective shall be repaired or replaced as required by NFPA 99. After installation of the distribution piping and before installation of station outlets/inlets and other system components the piping in laboratory vacuum and gas distribution systems shall be blown clear by means of oil-free, dry Nitrogen. Installer shall perform initial pressure tests, cross-connection test, piping purge test and standing pressure test prior to third party system verification and in strict accordance with NFPA 99. System verification tests shall be performed only after all installer performed tests, have been completed. Equipment Vendor or installing Contractor shall not perform system verification, final testing or certification. A Third Party Medical Gas System Verification Testing Agency shall perform standing pressure test, cross-connection test, valve test, alarm test, piping purge test, piping particulate test, piping purity test, final tie-in test, operational pressure test and gas concentration test shall be performed. The Third Party Medical Gas System Verification Testing Agency shall verify the presence and correctness of labeling required by this standard for all components (e.g., station outlets/inlets, shutoff valves, and alarm panels). It shall be the responsibility of the Third Party Medical Gas System Verification Testing Agency to make periodic jobsite visits to assure all requirements of this specification and NFPA 99 are strictly adhered to. Certification shall clearly state that the system is approved for use and meets The Contractor shall state in writing that all requirements of NFPA-99 inclusive of all referenced and/or related documents. as outlined herein have been accomplished. Any exceptions or limitations shall be clearly stated on the same certification document. Vendor supervision and operating instructions An authorized representative of the equipment manufacturer shall periodically check with the installing Contractor during initial installation of the pipeline systems and equipment and shall assist the Contractor in final check to make certain that all systems are operating as recommended by the manufacturer, as specified herein. The equipment manufacturer's representative shall provide a minimum of 4 hours instruction to MD Anderson Cancer Center personnel in the use of the piping systems and the related equipment operated from those systems. 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