HomeMy WebLinkAboutuponor-domestic-water-piping-specification-US22 11 16 ‒ 1
SECTION 22 11 16
DOMESTIC WATER PIPING
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Domestic water piping and fittings for the following applications:
1. Domestic cold water piping
2. Domestic hot water piping
3. Domestic hot water recirculation piping
1.2 RELATED SECTIONS
A. Section 22 11 13 — Facility Water Distribution Piping
B. Section 22 07 19 — Plumbing Piping Insulation
C. Section 22 05 29 — Hangers and Supports for Plumbing Piping and Equipment
1.3 REFERENCES
A. ASTM International (ASTM)
1. ASTM D 2765 Test Methods for Determination of Gel Content and Swell Ratio
of Crosslinked Ethylene Plastics.
2. ASTM D 3350 Standard Specification for Polyethylene Plastics Pipe and
Fittings Materials.
3. ASTM D 6394 Specification for Sulfone Plastics (SP).
4. ASTM E84 Standard Test Method for Surface Burning Characteristics of
Building Materials.
5. ASTM E119 Standard Test Methods for Fire Tests of Building Construction
and Materials.
6. ASTM F714 Standard Specification for Polyethylene (PE) Plastic Pipe (SDR-
PR) Based on Outside Diameter.
7. ASTM E814 Standard Test Method for Fire Tests of Through-Penetration Fire
Stops.
8. ASTM F876 Standard Specification for Crosslinked Polyethylene (PEX)
Tubing.
9. ASTM F877 Standard Specification for Crosslinked Polyethylene (PEX)
Plastic Hot- and Cold-Water Distribution Systems.
10. ASTM F1960 Standard Specification for Cold Expansion Fittings with PEX
Reinforcing Rings for Use with Crosslinked Polyethylene (PEX) Tubing.
11. ASTM F2023 Standard Test Method for Evaluating the Oxidative Resistance
of Crosslinked Polyethylene (PEX) Pipe, Tubing and Systems to Hot
Chlorinated Water
12. ASTM F2657 Standard Test Method for Outdoor Weathering Exposure of
Crosslinked Polyethylene (PEX) Tubing
22 11 16 ‒ 2
B. American Water Works Association
1. AWWA C904 Standard for Crosslinked Polyethylene (PEX) Pressure Pipe, 1/2
in. Through 3 in., for Water Service.
C. American National Standards Institute (ANSI)/National Sanitation Foundation (NSF)
1. ANSI/NSF Standard 14 Plastics Piping System Components and Related
Materials
2. ANSI/NSF Standard 61 Drinking Water System Components - Health Effects
3. ANSI/NSF Standard 359 Valves for Crosslinked Polyethylene (PEX) Water
Distribution Tubing Systems
4. ANSI/NSF Standard 372 Drinking Water System Components – Lead Content
D. American National Standards Institute (ANSI)/Underwriters Laboratories, Inc. (UL)
1. ANSI/UL 263 Standard for Safety for Fire Tests of Building Construction and
Materials.
2. ANSI/UL 2846 Standard for Fire Test of Plastic Water Distribution Plumbing
Pipe for Visible Flame and Smoke Characteristics.
E. American Society of Mechanical Engineers (ASME)
1. ASME B 16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24
Metric/Inch Standard.
2. ASME B16.51 Copper and Copper Alloy Press-Connect Pressure Fittings.
F. Canadian Standards Association (CSA)
1. CAN/CSA B137.11 Polypropylene Pipe and Fittings for Pressure Applications
2. CAN/CSA B137.5 Crosslinked Polyethylene (PEX) Tubing Systems for
Pressure Applications.
3. CSA B242-05 Groove-and Shoulder-Type Mechanical Pipe Couplings.
G. City of Los Angeles, California
1. Research Report RR-5482
H. German Welding Society (DVS)
1. DVS 2207-11:2008 Welding of Thermoplastics — Machines and Devices for
Heating Element Welding of Pipes, Pipeline Parts and Sheets.
I. Department of Housing and Urban Development
1. Materials Release no. 1269f
J. International Code Council (ICC)
1. International Plumbing Code (IPC)
2. Evaluation Service Report PMG-1006 and PMG-1412
3. ICC-ES PMG — 1106
4. International Association of Plumbing Officials (IAPMO)
5. Uniform Plumbing Code (UPC)
6. Evaluation Report 253
22 11 16 ‒ 3
K. State of Massachusetts Division of Professional Licensure
L. National Association of Plumbing, Heating and Cooling Contractors (NAPHCC)
1. National Standard Plumbing Code (NSPC)
M. Plastics Pipe Institute (PPI)
1. PPI Technical Report TR-4
N. QAI Laboratories
1. P321-1 Water Pipe Systems - Plumbing Product-Pipe and Accessories
2. P321-2 Water Pipe Systems - Plumbing Product-Plastic Piping and
Accessories
O. Underwriters Laboratories (UL)
1. UL 2846 Standard for Fire Tests of Plastic Water Distribution Plumbing Pipe
for Visible Flame and Smoke Characteristics.
P. Uponor Inc.
1. Uponor Piping Systems Installation Guide, current edition.
2. Uponor Plumbing Design Assistance Manual, current edition.
1.4 SUBMITTALS
A. Submit under provisions of Section 01 30 00 — Administrative Requirements.
B. Product data: Provide manufacturer's product submittal data.
C. Shop drawings: Provide installation drawings indicating piping layout, size
dimension by installation segment, vault locations, support fixtures and schedules
with all details required for installation of the system.
D. Samples: Submit selection and verification samples of piping.
E. Quality assurance/control submittals
1. Test reports: Upon request, submit test reports from recognized testing
laboratories.
2. Submit the following documentation.
a. Manufacturer's certificate stating that products comply with specified
requirements.
b. Manufacturer's flow schedule for the distribution system.
c. Documentation that the installer is trained to install the manufacturer's
products
F. Closeout submittals: Submit the following documents.
1. Warranty documents specified herein.
2. Operation and maintenance data.
3. Manufacturer's field reports specified herein.
4. Final as-built piping layout drawing.
22 11 16 ‒ 4
1.5 QUALITY ASSURANCE
A. Installer qualifications: Installer shall have successfully completed the Uponor Piping
Systems Training Course and is able to provide proof/verification. Course shall be
conducted by the manufacturer or a manufacturer's representative.
1. Regulatory requirements and approvals: Ensure the piping distribution system
complies with all applicable codes and regulations.
2. Certifications: Provide letters of certification indicating: Installer uses skilled
workers holding a trade qualification license or equivalent, or apprentices
under the supervision of a licensed tradesperson.
3. Pre-installation meetings:
a. Verify project requirements, excavation conditions, system performance
requirements, manufacturer's installation instructions and warranty
requirements.
b. Review project construction timeline to ensure compliance or discuss
modifications as required.
c. Interface with other trade representatives to verify areas of
responsibility.
d. Establish the frequency and construction phase the project engineer
intends for site visits and inspections by the tubing manufacturer's
representative.
1.6 DELIVERY, STORAGE AND HANDLING
A. General: Comply with Division 1 Product Requirement Section.
B. Ordering: Comply with manufacturer's ordering instructions and lead-time
requirements to avoid construction delays.
C. Delivery: Deliver materials in manufacturer's original, unopened, undamaged
containers with identification labels intact.
D. Storage and protection: Store materials protected from exposure to harmful
environmental conditions and at temperature and humidity conditions recommended
by the manufacturer.
1. Store PEX piping in cartons or under cover to avoid dirt or foreign material
from entering the piping.
2. Do not expose white PEX tubing to direct sunlight for more than one month or
red or blue PEX tubing to direct sunlight for more than 6 months. If
construction delays are encountered, cover the tubing to prevent exposure to
direct sunlight.
3. Store piping on a flat surface to prevent unwanted deformation.
1.7 WARRANTY
A. Project warranty: Refer to Conditions of the Contract for project warranty provisions.
B. Manufacturer's warranty: PEX-a manufacturer system warranty shall cover piping
and fittings for a duration of 25 years from the date of installation. Piping system
warranty shall apply to potable water distribution and water service systems
constructed of pipe and fitting products sourced from the same manufacturer.
22 11 16 ‒ 5
PART 2 – PRODUCTS
2.1 MANUFACTURERS
A. Acceptable manufacturer: Uponor, located at: 5925 148th St. W.; Apple Valley, MN,
55124; toll-free: 800-321-4739; tel: 952-891-2000; email:
NAspecifications@uponor.com; web: uponor-usa.com or uponor.ca.
B. Substitutions: Not permitted.
C. Requests for substitutions will be considered in accordance with provisions of
Section 01 60 00 — Product Requirements.
2.2 DOMESTIC WATER PIPING AND FITTINGS
A. Performance requirements:
1. PEX-a piping and fittings shall meet the following pressure and temperature
ratings per ASTM F876:
a. 200 degrees F (93 degrees C) at 80 psi (551 kPa).
b. 180 degrees F (82 degrees C) at 100 psi (689 kPa).
c. 73.4 degrees F (23 degrees C) at 160 psi (1,102 kPa).
2. PEX-a piping and fittings shall be tested for compliance by an independent
third-party agency.
3. Minimum bend radius (cold bending): Six times the outside diameter.
4. Show compliance with ASTM E119 and ANSI/UL 263 through certification
listings through UL.
a. UL Design No. L557 1 hour wood frame floor/ceiling assemblies.
b. UL Design No. K913 2 hour concrete floor/ceiling assemblies.
c. UL Design No. U372 1 hour wood stud/gypsum wallboard wall
assemblies.
d. UL Design No. V444 1 hour steel stud/gypsum wallboard wall
assemblies.
5. PEX-a piping shall be tested to comply with the ASTM F2023 requirement for
minimum chlorine resistance at the end use condition of 100% of the time at
140°F (60°C) at 80 psi (0.55 MPa) gauge pressure.
a. PEX-a piping and tubing material designation codes shall be PEX 5106
or PEX 5306.
B. Piping:
1. Uponor AquaPEX®
a. PEX-a (Engel-method crosslinked polyethylene), ASTM F876 and F877
(CAN/CSA-B137.5), SDR 9, CTS, 1/2 inch (16mm) through 3 inch
(75mm) nominal pipe size.
2. Uponor AquaPEX pre-sleeved piping
a. High-density polyethylene (HDPE) corrugated sleeved PEX-a (Engel-
method crosslinked polyethylene), ASTM F876 and F877 (CAN/CSA-
B137.5), SDR 9, CTS, 1/2 inch (16mm) and 3/4 inch (19 mm) nominal
pipe size.
3. Uponor pre-insulated piping
a. Factory fabricated and assembled Uponor AquaPEX PEX-a piping with
a closed-cell polyethylene foam insulation, 1/2 inch (16mm) through 2
inch (51mm) nominal pipe size.
1) Insulation shall not be exposed to groundwater
22 11 16 ‒ 6
C. Fittings:
1. Uponor ProPEX®
a. Third-party certified to NSF 14 and ASTM F1960 cold-expansion with
PEX reinforcing ring and shall comply with ASTM F876 and ASTM
F877, 1/2 inch through 3 inch nominal pipe size fittings manufactured
from the following material types:
b. Reinforcing cold-expansion rings shall be manufactured from the same
source as PEX-a piping manufacturer and marked “F1960”.
2. Uponor multiport tees and elbows: Multiple-outlet fitting complying with ASTM
F877 (CAN/CSA B137.5); with ASTM F1960 inlets and outlets.
3. Uponor manifolds: Multiple-outlet assembly with ASTM F 1960 outlets.
a. Type L copper branch manifold with lead-free brass valve outlets.
b. Type L copper branch manifold without valves, with lead-free brass
outlets.
2.3 TRANSITION FITTINGS
A. PEX-to-metal transition fittings:
1. Manufacturers: Provide fittings from the same manufacturer of the piping.
2. Third-party certified to NSF 14 and ASTM F1960 cold-expansion with PEX
reinforcing ring and shall comply with ASTM F876 and ASTM F877, 1/2 inch
through 3 inch nominal pipe size fittings manufactured from the following
material types:
3. PEX-a to thread transition: One-piece Lead free (LF) brass fitting with male or
female threaded adapter and ASTM F 1960 cold-expansion end, with PEX-a
reinforcing cold-expansion ring.
4. PEX-a to copper sweat transition: One-piece lead free (LF) brass fitting with
sweat adapter and ASTM F 1960 cold-expansion end, with PEX-a reinforcing
cold-expansion ring.
5. PEX-a to copper press transition: One-piece lead free (LF) brass fitting with
one ASME B16.51 copper press end and one ASTM F1960 cold-expansion
end, with PEX-a reinforcing cold-expansion ring.
6. PEX-a to flange transition: Two-piece fitting with one steel flange conforming
to ASME B 16.5 and one lead free (LF) brass adapter conforming to ASTM
F1960.
7. PEX-a to groove transition: One-piece lead free (LF) brass fitting with one
CSA B242-05 groove end in either iron pipe size (IPS) or copper tube size
(CTS) and one ASTM F1960 cold-expansion end, with PEX-a reinforcing cold-
expansion ring.
8. PEX-a to water meter transition: Two-piece fitting with one NPSM union
thread and one ASTM F 1960 cold-expansion end, with PEX-a reinforcing
cold-expansion ring.
B. PEX-to-thermoplastic transition fittings:
1. PEX-a to CPVC transition: Thermoplastic fitting with one spigot or socket end
and one ASTM F1960 cold-expansion end, with PEX-a reinforcing cold-
expansion ring.
22 11 16 ‒ 7
2.4 VALVES
A. PEX-to-PEX, lead-free (LF) brass ball valves (1/2 inch (13 mm) through 2 inch (50
mm) nominal pipe size)
1. Manufacturers: Provide ball valve(s) from the same manufacturer as the
piping system.
2. Full-port ball valve: two-piece, ASTM F1960 cold-expansion ends, with PEX-a
reinforcing cold-expansion ring.
3. LF brass valve with a positive stop shoulder.
4. In compliance with 250 CWP, ANSI/NSF 359, ANSI/NSF 372, ANSI/NSF
14/61, cNSF-us-pw_G lead free 0.25% lead maximum, ASTM F1960, ASTM
F877 (CAN/CSA B137.5).
5. Provide stem extension kits for insulated piping.
B. PEX-to-NPSM, lead-free (LF) full-port brass water meter service valve
1. 3/4 inch PEX x 1 inch NPSM straight and elbow
2. 1 inch PEX x 1-1/4 inch NPSM straight and elbow
3. Metal and polypropylene NPSM union nut
4. In compliance with 250 CWP, ANSI/NSF 359, ANSI/NSF 14/61, cNSF-us-
pw_G lead free 0.25% lead maximum, ASTM F1960, ASTM F877 (CAN/CSA
B137.5).
PART 3 – EXECUTION
3.1 EXAINATION
A. Site verification of conditions: Verify that site conditions are acceptable for
installation of the domestic water piping. Do not proceed with installation until
unacceptable conditions are corrected.
3.2 INSTALLATION
A. Install domestic water piping according to approved shop drawings and coordination
drawings.
B. Comply with manufacturer's product data, including product technical bulletins,
installation instructions and design drawings, including the following.
1. Install PEX piping system in compliance with the Uponor Plumbing Design
Assistance Manual (PDAM), current edition, and the Uponor Piping Systems
Installation Guide, current edition.
2. PEX shall not be installed in areas within five feet of a UV light source, such
as LED and fluorescent light fixtures or other UV generating devices.
3. White PEX shall not be installed outdoors where it is exposed to direct
sunlight light for more than one month; red or blue PEX shall not be installed
outdoors where it is exposed to direct sunlight for more than six months.
4. PEX piping shall be installed per ASTM E84 requirements for plenum
applications.
5. Install PEX-a Pipe Support and provide all required hangers and supporting
strapping as required by manufacturer to provide a code compliant installation.
6. Install PEX piping in straight runs free of sags and kinks and provide bend
supports at all 1/2 inch and 3/4 inch drops.
22 11 16 ‒ 8
7. All PEX piping penetrations through wall plates shall be protected or shielded
as required to prevent damage to piping.
8. PEX tubing passing through metal studs shall use grommets or sleeves at the
penetration.
9. Install PEX piping from the multiport tee or manifold to each fixture as a home
run.
10. Install PEX-a Pipe Support, fixed anchor points and hangers in compliance
with Uponor Plumbing Design Assistance Manual (PDAM) to minimize
expansion and contraction.
11. Install PEX piping at each fixture with out of the wall support bracket to secure
piping and prevent excess movement when water stops or shut valves are
operated.
12. Install all PEX manifolds centered in access panels to permit servicing.
C. Below-ground and in-slab installation
1. Install PEX piping system in compliance with the Uponor Plumbing Design
Assistance Manual (PDAM), current edition and the Uponor Piping Systems
Installation Guide, current edition.
2. White PEX shall not be installed outdoors where it is exposed to direct
sunlight light for more than one month; red or blue PEX shall not be installed
outdoors where it is exposed to direct sunlight for more than six months.
3. Install support strapping as required by manufacturer to provide a code-
compliant installation.
4. Install PEX piping free of kinks.
5. PEX piping penetrations through slabs shall be protected by PEX stand-up
brackets or PVC bend supports to prevent damage to piping.
6. Install PEX piping from the manifold as a home run. No joints shall be installed
in the slab.
7. Insulation shall not be exposed to groundwater.
8. The piping system will be installed with the fewest number of underground
joints as possible.
D. Backfill
1. The piping system will be backfilled with clean sand material.
a. Minimum vertical distance from the bottom of the tubing to the trench
floor is 4 inches (100 mm).
b. Minimum lateral distance from the side of the tubing to the trench wall is
6 inches (150 mm).
c. Install a minimum of 12 inches (300 mm) of clean fill over the top of the
piping.
2. The balance of the trench can be backfilled with native soil void of stone
greater than 2 inches (50m) in diameter.
E. Comply with manufacturer’s product data, including product technical bulletins,
installation instructions and design drawings, including the following:
1. Uponor Piping Systems Installation Guide, current edition.
2. Uponor Plumbing Design Assistance Manual, current edition.
22 11 16 ‒ 9
F. PEX-a hangers and supports
1. Horizontal PEX-a piping: Install supports suitable for PEX-a piping in
compliance with local codes and the Uponor Piping Systems Installation
Guide, current edition.
a. Note: Per ICC PMG-1006, the above maximum hanger spacing
requirements may be extended with the use of a continuous support
channel such as Uponor PEX-a Pipe Support.
2. Horizontal PEX-a piping with PEX-a Pipe Support: Install supports for PEX-a
piping with horizontal support channel in accordance with manufacturer's
recommendations and the following maximum spacing:
a. 3 inch nominal and smaller: Maximum span, 8 feet (2.4 m).
b. Support 1-1/2 inch and smaller fittings within 12 inches (0.3 m).
c. Install clamps and fixed points per the Uponor Piping Systems
Installation Guide, current edition.
3. Vertical PEX-a piping: Install supports suitable for PEX-a piping in compliance
with local codes and the Uponor Piping Systems Installation Guide, current
edition:
a. Support vertical in-wall piping every 5 feet (1.5 m).
b. Support riser piping at the base of each floor and every 5 feet (1.5 m)
vertically.
1) Refer to the Uponor Piping Systems Installation Guide, current
edition, for additional requirements.
G. Piping schedule
1. Above ground domestic water piping shall be the following:
a. 3 inch (75mm) and smaller
1) PEX-a piping with engineered polymer (EP) or lead-free brass
ASTM F1960 cold-expansion fittings.
b. 2 inch (51mm) and smaller:
1) Pre-Insulated PEX-a piping with engineered polymer (EP) or lead-
free brass ASTM F1960 cold-expansion fittings.
2. Domestic water piping installed below ground shall be any of the following:
a. 3 inch (75mm) and smaller:
1) PEX-a piping with engineered polymer (EP) or lead-free brass
ASTM F1960 cold-expansion fittings. No joints or fittings shall be
installed under slab. Protect all slab penetrations.
b. 2 inch (51mm) and smaller, not exposed to groundwater:
1) Pre-Insulated PEX-a piping with engineered polymer (EP) or lead-
free brass ASTM F1960 cold-expansion fittings. No joints or
fittings shall be installed under slab. Protect all slab penetrations.
3. Domestic water piping installed within slabs shall be the following:
a. 3 inch (75mm) and smaller:
1) PEX-a piping. No joints or fittings shall be installed within slab.
Protect all slab penetrations.
b. 1/2 inch (13 mm) and 3/4 inch (19 mm):
1) Pre-sleeved PEX-a piping. No joints or fittings shall be installed
within slab. Protect all slab penetrations.
22 11 16 ‒ 10
c. 2 inch (51mm) and smaller:
1) Pre-Insulated PEX-a piping. No joints or fittings shall be installed
within slab. Protect all slab penetrations.
H. Pipe joint construction
1. PEX-a connections:
a. Install per manufacturer's recommendations.
b. Use manufacturer-recommended cold-expansion ProPEX tool for ASTM
F1960 connections.
3.3 FIELD QUALITY CONTROL
A. Pressure testing PEX pipe and fittings: Pressure test PEX-a piping systems in
accordance with local code and manufacturer’s requirements.
B. System flushing, pressure testing and system conditioning procedure:
1. Hydrostatic pressure testing shall be completed in accordance with local
Codes and the Uponor Plumbing Design Assistance Manual (PDAM).
2. Leave joints uninsulated and exposed for the duration of the test.
3. Flush the domestic water system with ambient temperature, clean, potable
water unless there is a risk of damage due to freezing.
4. After completing each hydrostatic leak testing procedure, drain the system
until empty.
5. If testing with compressed air, do not exceed 120 psi.
3.4 CLEANING
A. Remove temporary coverings and protection of adjacent work areas.
B. Repair or replace damaged installed products.
C. Clean the installed products in accordance with manufacturer's instructions prior to
Owner's acceptance.
D. Water system disinfection
1. Uponor AquaPEX piping should be disinfected in accordance with AWWA
C651, Standard for Disinfecting Water Mains, or local codes.
2. Use non-petroleum-based cleaners
3. Not exceed a pH of 11
4. Have water temperatures less than 140°F (60°C)
5. Use a chlorine solution of 50 parts per million (ppm) for 24 hours or 200 ppm
for three hours for disinfection.
6. To prevent reduced service life of system components, disinfection solutions
should not stand in the system longer than 24 hours. Flush the system with
potable water after disinfection.
3.5 PROTECTION
A. Protect installed work from damage caused by subsequent construction activity on
the site.
END OF SECTION