ir piping, designated
MEDICAL AIR
.
3. Nitrous-oxide piping, designated
NITROUS OXIDE
.
4. Nitrogen piping, designated
NITROGEN
.
5. Carbon-dioxide piping, designated
CARBON DIOXIDE
.
6. Medical-surgical vacuum piping, designated
MEDICAL VACUUM
.
B.
Related Sections include following:
1.
Section 15122 - Meters and Gages for thermometers, pressure gages, and fittings.
2. Section 15254 - Medical Gas Equipment for medical air equipment and accessories.
3. Section 15255 - Medical Vacuum Equipment for medical vacuum equipment and accessories.
1.2
DEFINITIONS
A.
PTFE: Polytetrafluoroethylene.
B.
PVC: Polyvinyl chloride.
C.
TFE: Tetrafluoroethylene.
1.3
SUBMITTALS
A.
General: Comply with Section 01330.
B.
Product Data: For following:
1. Special-purpose valves.
2. Medical gas specialties.
3. Medical gas alarm system components.
4. Cylinder wall racks and storage racks.
5. Medical gas storage tanks.
C.
Wiring diagrams for medical gas alarm systems. Differentiate between manufacturer-installed and
field-installed wiring.
D. Informational Submittals:
1. Inspection and test reports specified in Field Quality Control Article in Part 3.
2. Product Certificates: Signed by manufacturer certifying that copper tubing complies with
NFPA 99 - Gas Piping Systems (General).
3. Certificates of Shop Inspection and Data Report required by ASME Boiler and Pressure Vessel
Code.
4. Certificates of inspections and tests from independent testing agency specified in Field Quality
Control Article in Part 3.
5. Coordination Drawings: For medical gas systems, including relationship to other services that
serve same work areas.
E.
Closeout Submittals: Submit following in accordance with Section 01780.
1. Maintenance Data: For specialties and alarm systems.
1.4
QUALITY ASSURANCE
A.
Testing Agency Qualifications: Demonstrate to Architects satisfaction, based on Architects
evaluation of criteria conforming to ASTM E699 that independent testing agency has experience and
capability to satisfactorily conduct testing indicated without delaying Work.
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B.
Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70 (1996),
Article 100, by testing agency acceptable to authorities having jurisdiction.
C.
Comply with
1. NFPA 70 (1996) - National Electrical Code.
2. NFPA 99 - Health Care Facilities.
3. UL 498 - Attachment Plugs and Receptacles.
4. UL 544 - Medical and Dental Equipment.
1.5
DELIVERY, STORAGE, AND HANDLING
A.
General: Comply with Section 01600. Deliver and store large medical gas specialties on factory-
installed shipping skids, small specialties in factory-fabricated fiberboard containers, and piping with
sealing plugs in ends or with other end protection.
1. Store precleaned and sealed medical gas pipe, fittings, valves, and specialties with sealing plugs
and sealing packaging intact.
2. Label medical gas pipe, fittings, valves, and specialties that have not been precleaned, or that have
been precleaned but have seal or packaging that is not intact, with temporary labels indicating
that cleaning is required before installation.
1.6
EXTRA MATERIALS
A.
Furnish extra materials described below that match products installed, are packaged as precleaned
with protective covering for storage, and are identified with labels describing contents. Deliver
materials to Owner in accordance with Section 01780.
1. Service Outlets: Include box, valve block, valve body, O-ring, and cover plate. Furnish quantity
not less than 10 percent of amount of each installed.
2. Service-Outlet Valve Bodies: Furnish quantity not less than 10 percent of amount of each
installed.
3. Service-Outlet, Valve-Body O-Ring Seals: Furnish quantity not less than 50 percent of amount of
each installed.
4. Shutoff Valves: Furnish quantity not less than 10 percent of amount of each type and size zone
valve installed.
5. Valve Seat, Packing, and Seals: Furnish quantity not less than 10 percent of amount of each type
and size installed.
6. Pressure and Vacuum Switches: Furnish quantity not less than 10 percent of amount of each
type installed.
PART 2 PRODUCTS
2.1
MANUFACTURERS
A.
Acceptable Manufacturers:
1. Medical Gas Piping Specialties:
a.
Allied Healthcare Products, Inc.; Chemtron Div.
b.
Allied Healthcare Products, Inc; Oxequip Health Industries
c.
MEDAES, Inc.
d.
Hill-Rom, Inc,
e.
Nellcor Puritan-Bennett Corp.
f.
Squire-Cogswell/Aeros Instruments.
g.
Accepted Substitute in accordance with Section 01600.
2. Medical Gas Alarm Systems:
a.
Allied Healthcare Products, Inc.; Chemtron Div.
b.
Allied Healthcare Products, Inc; Oxequip Health Industries
c.
MEDAES, Inc.
d.
Hill-Rom, Inc,
e.
Nellcor Puritan-Bennett Corp.
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f.
Squire-Cogswell/Aeros Instruments.
g.
Accepted Substitute in accordance with Section 01600.
2.2
PIPE AND TUBES
A.
Precleaned, Hard Copper Tube: ASTM B819, Type K or Type L, seamless, drawn temper, factory
cleaned, purged, and sealed for medical gas service. Include marking or labeling cleaned for medical
gas service, clean for oxygen service, nitrogenized.
2.3
PIPE AND TUBE FITTINGS
A.
Wrought-Copper Fittings: ASME B16.22, solder-joint, pressure type. Fittings may be factory cleaned,
purged, and sealed for medical gas service according to ASTM B819 or field cleaned, purged, and
sealed as specified in Preparation Article in Part 3. Include marking or labeling cleaned for medical gas
service, clean for oxygen service, nitrogenized.
1. Threaded joints are limited to connections to pressure/vacuum indicated, alarm devices, and
source equipment. Threads shall be tapered complying with ANSI B1.20, pipe threads, general
purpose. Joints shall be made up with PTFE tape.
B.
Bronze-Tube Flanges: ASME B16.24, Class 300.
C.
Flexible Connectors: Bronze or stainless-steel flexible pipe connectors as specified in Section 15071
Mechanical Vibration and Seismic Controls.
2.4
JOINING MATERIALS
A.
Comply with Section 15050 - Basic Mechanical Materials and Methods for joining materials not in this
Section.
B.
Brazing Filler Metals: AWS A5.8, BCuP (copper-phosphorus) series alloys. Flux is prohibited, except
when used with bronze fittings.
C.
Threaded-Joint Tape: PTFE plastic.
D. Gasket Material: ASME B16.21, nonmetallic, flat, asbestos free, and suitable for oxygen use.
2.5
VALVES AND VALVE BOXES
A.
Ball Valves, 3-Inch NPS and Smaller: MSS SP-110, bronze-body, full-port valve rated for 300 PSIG
working pressure, with chrome-plated brass ball, PTFE or TFE seals, blowout-proof stem, threaded or
braze-joint ends, and locking-type handle designed for quarter turn between open and closed
positions, with position indicator.
1. Include union-type body with bolted swing-away center section.
2. Include factory-cleaned, factory-sealed for oxygen use, and factory-installed, ASTM B88, Type K
or L, copper-tube extensions.
B.
Ball Valves, 4 Inch NPS and Larger: MSS SP-72, bronze- body, full-port valve rated for 300 PSIG
working pressure, with chrome-plated brass ball valve, PTFE or TFE seals, blowout-proof stem,
flanged ends, and locking-type handle designed for quarter turn between open and closed positions,
with position indicator.
C.
Check Valves, 3 Inch NPS and Smaller: Bronze-body, straight-through pattern, spring-loaded ball
check valve, designed for 300 PSIG minimum working pressure.
D. Check Valves, 4 Inch NPS and Larger: MSS SP-71, Class 250, iron-body, bronze-trim, swing check
valve, with flanged ends.
E.
Safety Valves: Bronze body with settings to match system requirements.
1. Pressure Safety Valves: ASME construction.
2. Vacuum Relief Valves: Equipment manufacturers option.
F.
Pressure Regulators: Brass or bronze body and trim; spring-loaded, diaphragm-operated, relieving
type; manual pressure-setting adjustment; rated for 250 PSIG minimum inlet pressure; and capable of
controlling delivered air pressure within 0.5 PSIG for each 10 PSIG inlet pressure.
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G. Automatic Drain Valves: Corrosion-resistant metal body and internal parts, 200 PSIG minimum
working-pressure rating, capable of automatic discharge of collected condensate.
H. Zone Valve Boxes: Minimum 0.048 inch thick steel, valve boxes for recessed mounting, with holes
for medical gas piping and anchors. Include for single- or multiple-valve (with pressure gage)
installation and in sizes to permit manual operation of valves.
1. Interior Finish: Factory-applied white enamel.
2. Cover Plate: Satin-chrome finish, minimum 0.048 inch thick steel with frangible or removable
windows.
3. Valve-Box Windows: Clear or tinted transparent plastic with labeling, including space for rooms
served, according to NFPA 99.
2.6
MEDICAL GAS PIPING SPECIALTIES
A.
General: Provide following medical gas piping specialties by same manufacturer:
B.
Medical Gas Manifolds: Comply with NFPA 99, Chapter 5 - Cylinder Systems without Reserve
Supply, with following features:
1. Central Control Panel Unit: Weatherproof cabinet, supply and delivery pressure gages,
electrical alarm system connections and transformer, indicator lights or devices, manifold
connection, pressure changeover switch, line-pressure regulator, shutoff valves, and safety valve.
If heaters are required, as determined by manifold supplier, provide