Commercial Plumbing Engineer Quick-reference Guide

Transcription

1 PLUMBING SYSTEMS REFERENCE GUIDE Reinforced Uponor AquaPEX Tubing Double and Commercial Plumbing Engineer Quick-reference Guide This quick reference guide is designed for architects, building officials, engineers and mechanical contractors interested in Uponor Commercial Plumbing Systems. 70% the wall thickness greater flow 2 It describes general installation recommendations that use Uponor AquaPEX crosslinked polyethylene(pex-a) tubing and ProPEX fitting products. Uponor is not liable for installation practices that deviate from this manual or are not acceptable practices within the mechanical trades, codes or standards of practice. Always refer to local codes for additional requirements. For further assistance, refer to the Uponor Plumbing Design Assistance Manual (PDAM) or contact Uponor Design Services at design.services@uponor.com or call (U.S.) or (Canada). A - Wall thickness Not All PEX is Created Equal C B - Flow path C Uponor PEX-a Highest degree of crosslinking (>80%) Hot crosslinking above the crystal melting temperature Most flexible of all PEX and allows kink reparability Shape memory ideal for cold-expansion ProPEX fittings Increased resistance to corrosion C - Internal diameter PEX-b Lowest degree of crosslinking (65-70%) Crosslinking performed in a secondary, post-extrusion process Stiffer product and no kink reparability ProPEX F960 Expansion Fitting F807/F259 Insert Fitting PEX-c Lesser degree of crosslinking (70-75%) Cold crosslinking below the crystal melting temperature Less uniform, less consistent Stiffer, no kink reparability Uponor ProPEX Cold Expansion Fitting Standard Insert Fitting ASTM F960 Brass ASTM F960 Sulfone ASTM F807 Brass ASTM F259 Sulfone Wall thickness (A) 2" 0.057" 0.057" 0.028" 0.056" Flow path (B) ProPEX Fittings vs. Standard Insert Fittings " 0.072" 0.072" 0.04" 0.00" 2" 0.2 sq. inches 2.8 gpm at 8 ft./sec. 4.2 gpm at 2 ft./sec. " sq. inches 2.4 gpm at 8 ft./sec. 8.6 gpm at 2 ft./sec. 0.6 sq. inches 2.9 gpm at 8 ft./sec. 4.3 gpm at 2 ft./sec sq. inches 2.2 gpm at 8 ft./sec. 8.2 gpm at 2 ft./sec sq. inches 2.4 gpm at 8 ft./sec. 3.6 gpm at 2 ft./sec sq. inches 9.8 gpm at 8 ft./sec. 4.8 gpm at 2 ft./sec. Internal diameter (C) 2" 0.378" 0.385" 0.350" 0.35" When comparing ½" F960 with F807 brass fittings 2 When comparing " F960 with F259 sulfone fittings " 0.795" 0.788" 0.70" 0.60" sq. inches.9 gpm at 8 ft./sec. 2.9 gpm at 2 ft./sec sq. inches 7.2 gpm at 8 ft./sec. 0.8 gpm at 2 ft./sec.

2 Uponor AquaPEX (PEX-a) Tubing The Core of Uponor Plumbing Systems Hydrostatic Temperature and Pressure Ratings Uponor maintains standard-grade ratings for as tested in accordance with TR-3. Uponor PEX products have the following temperature and pressure ratings: 200 F (93 C) at 80 psi (55 kpa) 80 F (82 C) at 00 psi (689 kpa) 73.4 F (23 C) at 60 psi (,03 kpa) In accordance with Section 6.6 of ASTM F876, the minimum hydrostatic burst pressure for ½" and larger PEX tubing is 480 psi at 73.4 F (23 C). Uponor s NSF-approved quality lab performs daily burst pressure testing on all tubing sizes above and beyond the ASTM F876 standard. All samples are tested to failure at 73.4 F (23 C) and consistently fail at an elevated pressure of 800 psi (+/- 20 psi) nearly twice the burst pressure requirement of ASTM F876. Fire-resistant Construction Ratings Uponor PEX-a has achieved the following ratings when tested in accordance with ASTM E-9 (ANSI/UL 263) K93 - one and two-hour concrete floor/ceiling assembly L557 - one-hour wood frame floor/ceiling assembly U372 - one-hour wood stud/ gypsum wall assembly V444 - one-hour non-load bearing steel stud/gypsum wall assembly G573 & G524 - two-hour concrete floor/ceiling and suspended plenum assembly ITS Design No. UW/FCA two-hour steel-stud/gypsum wall assembly ITS Design No. UW/FCA 20-0 and UW/FCA One and two-hour concrete floor/ceiling assembly ITS Design No. UW/FCA One-hour wood stud/gypsum wall assembly Concrete Floor/Ceiling Assembly (UL Design No. K93) Steel-stud Wall Assembly (UL Design No. V444) Non-rated wall or non-load bearing wall assembly with Uponor AquaPEX tubing installed ANSI/ UL 263 (ASTM E9, NFPA No. 25) Refer to UL Design No. V444) For ANSI/UL 263 steel-stud rated walls maximum Uponor AquaPEX tubig of.3 lbs./ft. and not to exceed total weight per stud cavity of 8.0 lbs. Uponor EP multi-port tee or copper manifold with a weight not exceeding.0 lbs. per cavity (typical) /2" or 3 /4" Uponor AquaPEX tubing (25 FS/50 SD) ASTM E84 listed Report No Uponor PEX one or five-loop stand-up bracket or metal/2x4 wood pre-drilled mounting bracket on top side of slab 6 /2" minimum restrained or un-restrained Structural rebar (two layers) riser Steel stud Mid-story guide (see riser detail on page 5) Riser clamp (see riser detail on page 5) Firestop listed to ASTM E84 (must be compatible) ANSI/UL 263 slab listed with only (refer to UL Design No. K93) Minimum tubing density is 3 cubic inches with or without sleeve per one cubic foot of concrete (equivalent of 3" average spacing through slab between /2" Uponor AquaPEX tubing.) Utility-grade polyethylene sleeve 3 /4" to " nominal tubing or PVC conduit " to /4" nominal and /2" to 2"

3 Uponor AquaPEX System Codes and Standards Minimum Distance Between ProPEX Fittings Nom. Fitting Size Cut Length of Tubing 2" 2 2" 3 4" 3 2" " 4 2" 4" 5 2" 2" 6 2" 2" 7 2" ASTM, NSF, AWWA, UL, ULC, ICC, IAPMO, NAHB, PHCC, PPI, HUD and NBC of Canada ASTM F876 for PEX tubing ASTM F877 for PEX hot and cold water distribution systems ASTM F960 for cold expansion fittings for use with PEX tubing ASTM F2023 for oxidative resistance to hot chlorinated water ASTM F876 for continuous hot water recirculation up to 40 F (60 C) - Uponor AquaPEX White listed to 506 for 00% recirculation at 40 F (60 C) and one () month UV resistance - Uponor AquaPEX Red and Blue listed to 5206 for 00% recirculation at 40 F (60 C) and three (3) months UV resistance ASTM F2657 for UV resistance of PEX material AWWA C904 for water service ASTM E84 for plenum applications up to 3" (U.S.); S02.2 (Canada) ASTM E84 for through-penetration fire stop up to 2" (U.S.); S5 (Canada) ASTM E9/UL 263 for fire-resistive construction up to 2" (U.S.); S0 (Canada) NSF 4 and 6 Pipe Sizing an Uponor AquaPEX System Uponor recommends using the uniform friction loss method of pipe sizing. After determining the system s friction loss (psi/00 ft.) by performing a building supply water calculation, develop a water size chart for each system s water temperature. Do this by referencing Uponor AquaPEX flow charts and converting the gallons per minute (gpm) to fixture units for each nominal pipe size. Pressure Loss (psi) per 00 Feet of Uponor AquaPEX Tubing at 60 F/5.6ºC Velocity 2 ft./second Velocity 3 ft./second Velocity 4 ft./second Velocity 2 ft./second Velocity ft./second Velocity 0 ft./second Velocity 9 ft./second Velocity 8 ft./second Velocity 7 ft./second Velocity 6 ft./second Velocity 5 ft./second Note: Maximum velocities through Uponor AquaPEX systems using engineered polymer (EP) fittings shall not exceed 0 ft./sec. for cold and 8 ft./sec. for hot domestic water systems. 2" PEX Tubing / 2" PEX Tubing / 4" PEX Tubing " PEX Tubing 3/ 4" PEX Tubing Flow Rate (gpm) 0. / 2" PEX Tubing 3/ 8" PEX Tubing Pressure Loss (psi) per 00 Feet of Wirsbo AQUAPEX Tubing at 60ºF/5.6ºC

4 Suspended Piping For suspended runs of piping, Uponor AquaPEX tubing can be supported by the same conventional means as metallic pipe using copper tube size (CTS) pipe hangers or supports. Uponor recommends using hangers and supports designed for use with plastic pipe. Use pipe support channel or pipe reinforcement scale that continuously supports the pipe to achieve the required 8' (2.4m) spacing for metallic pipe. The horizontal support spacing requirement for " and smaller PEX is 32" (0.8m) and 48" (.2m) for ¼" and larger runs of PEX. Note that some local codes only allow for 32" (0.8m) horizontal support spacing regardless of tubing size. Check the project s state-adopted plumbing code for verification. If running tubing in a horizontal assembly requiring fire-resistant construction, tubing must be continuously supported or support spacing must not exceed 6" (0.4m) for " and smaller PEX and 24" (0.6m) for ¼" and larger runs of PEX. Use of support channel or scale in conjunction with CTS hangers is an alternative to the 32" (0.8m) and 48" (.2m) on-center support spacing requirements. Support channels allow for greater spacing between hangers; 8' (2.4m) to 0' (3m) on-center spacing is achievable if the support channel is installed per the manufacturer s instructions. For more information regarding support solutions, contact Uponor Technical Services at (U.S.) or (Canada). 8' On-Center Suspended Clevis Support Approved strapping U-shapped support channel [available in 9' (2.74m) lengths] 8' On-Center Trapeze Support Approved strapping device 32" On-Center Trapeze Support Floor truss Wood framing member Steel joist Approved beam clamp Threaded rod (size per load requirements) Standard CTS U-shaped clevis hanger spaced at max. 8' o.c. (allows for 6" overlap at each channel end) Steel joist Beam clamp All-threaded rod Rubber-lined strut clamp Steel support channel Steel strut or other approved hanging device All-threaded rod typical Strut or other approved hanging device with approved insulation where required

5 Risers Risers typically feature Uponor AquaPEX tubing in sizes from 4" to 2" with CTS riser clamps at the base of each floor. The installation should also include a riser clamp at the top of everyother story to limit the expansion and contraction of the tubing to less than 25' (7.6m). This translates to an expansion of about 2" in 25' at a 60 F Delta T (installed at 60 F and a operating temperature of 20 F). In this application, the tubing will snake slightly in areas where it is not constrained, requiring the use of mid-story guides. Use discarded framing as a backer plate for the guide. Ensure the guide is metal with no sharp edges or fire-rated for risers in walls requiring fire-resistant construction. Uponor AquaPEX tubing risers sizes /4" through 2" Appropriate firestop material (must be Uponor AquaPEX compatible) Use appropriate floor assembly per code Use appropriate wall assembly per code Mid-story guide required between each floor (typical) Riser clamp required at the base of each floor Through Penetrant Firestop Firestop manufacturers who offer PEX solutions as tested in accordance with ASTM E84/ULC S5. 3M TM Metacaulk Hilti NuCo ProSet Systems HoldRite HydroFlame TM See firestop manufacturer s website for selection of appropriate fire assembly and product. Wall-framing member Refer to appropriate fire assembly listing for penetration requirements Riser clamp required at the top of everyother floor to limit expansion and contraction to 25' (7.6m) Detailed Riser Installation Plenum Rated Tubing in return-air plenums have no spacing limitations if covered with ½" fire-rated fiberglass insulation. Uninsulated tubing in a return-air plenum must be separated by 8" (0.45m). This only applies to tubing sizes up to ¾" in the United States and up to " in Canada. Larger sizes may not be installed without ½" minimum fire-rated insulation. Tubing in hallway drop-ceiling applications requires special attention due to variances and interpretations of North American building codes. Always check with local code officials before installing Uponor AquaPEX in hallway drop ceilings. In many cases, this application is allowed if the tubing is covered with fire-rated fiberglass insulation. Uniform Mechanical Code (UMC) Requirements for Plenums Materials exposed in plenums shall have a flame spread (FS) of 25 or less and a smoke developed (SD) of 50 or less when tested in accordance with ASTM E84. A ½" minimum fire-resistant wrap, such as fiberglass insulation, will achieve 25 FS/50 SD classifications for large-diameter Uponor AquaPEX tubing, thus permitting installations in plenums, ceiling spaces and exposed locations.

6 Commercial Flush Bank Section Detail Wall Assembly header (size varies) Approved support supply (size varies) Vent pipe Uponor ProPEX Lead-free Brass Sweat Adapter Copper stub Copper carrier bracket Water closet carrier Surge Pressure and Sound Intensity The main sources of sound in a water piping system are cavitation, surface roughness and water hammer caused by surge pressure. Cavitation is generally a design issue, so the question is which material will absorb more of the sound if it occurs? Typical polymers will absorb Surge Pressure Generated in Response to a Quick-acting Valve (PPI Report #3285) Pipe Material Maximum Measured Pressure, psi Flow Rate, gpm " Uponor PEX-a " PEX-b " CPVC " Type L Copper Pressure response measurements include 60 psi (44 kpa) static pressure. Closing speed of quick-acting valve estimated at 25 milliseconds. Test performed at 54 F (2 C) cold water temperature. sound in the range of 0 db/cm, whereas metals are on the order of db/cm. For a given change in velocity, the intensity of sound from a copper pipe will be at least 8 times higher than that of PEX-a tubing and peak pressures caused by a quick-acting valve could be reduced by 8-40% by utilizing PEX-a in lieu of copper pipe. Commercial Flush Bank Front Detail Water hammer arrestor where required by code (exact locations vary by manufacturer) header (size varies) Stud wall assembly See Section Detail Isolation ball valve (typical) Uponor EP tee Bend support ( /2" - 3 /4" typical) Approved support Vent pipe Uponor AquaPEX tubing supply (size varies) Urinal carrier behind Copper stub Waste pipe Copper carrier bracket Water closet carrier See Section Detail

7 2" Uponor AquaPEX Expansion Loop Expansion and Contraction Because PEX tubing expands at a rate of." per 00' per 0 F (27.94mm per 30.48m per 5.56 C) temperature rise, an expansion joint, offset or change in direction is necessary to accommodate the expansion and contraction of the tubing. Compensation for expansion is typically needed every 65' (9.8m) for domestic hot water and every 50' (45.7m) for domestic cold water in a commercial domestic water plumbing system. Uponor offers a preformed 2" Uponor AquaPEX Tubing Expansion Loop (F852000) to make expansion joint installations more efficient. Thermal Conductivity PEX-a tubing has a very low coefficient of thermal conductivity, 0.29 Btu in/(h ft² F), whereas copper has a coefficient of thermal conductivity between 300 and 400 Btu in/(h ft² F) depending on wall thickness (Type K, L or M). Therefore, PEX-a tubing does not sweat like copper does; the thicker walls of PEX-a tubing act as an insulator (approx. R-0.9) whereas the heat transfer from copper is much greater than with PEX-a. Uponor recommends insulating all PEX-a domestic hot-water supply and return lines to conserve energy and insulating PEX-a domestic cold-water supply lines when installed in an unconditioned space or poorly ventilated areas with excessive moisture content. Uponor Pre-insulated AquaPEX is available in: 2"-2" tubing sizes with 2" PEX-foam insulation 3 4"-3" tubing sizes with " PEX-foam insulation (special order) PEX-a vs. Copper Heat Loss Comparison Btu in/(h ft² F) Delta T ( F) FG Insulation Thickness (K=0.28) 0" 2" " 2" 0" 2" " 2" 0" 2" " 2" 0" 2" " 2" 0" 2" " 2" 2" 3 4" Uponor PEX-a Type L Copper Uponor PEX-a Type L Copper Nominal Pipe Sizes " 4" 2" Uponor PEX-a Type L Copper Uponor PEX-a Type L Copper Uponor PEX-a Type L Copper " 3" Uponor PEX-a Type L Copper Uponor PEX-a Type L Copper

8 Building Information Modeling (BIM) Autodesk Seek Uponor parts now available in AutoDesk Seek; search Uponor on For use with Revit, AutoCAD, 3ds Max, Maya and other CAD applications Building-DATA.net/TSI Uponor parts now included in the Building Data Content Library for use with TSI MEP modeling software Specifications SpecAgent Uponor Domestic Water Specification now available in current MasterFormat for MasterSpec and SpecAgent users Easily research products and import specification selections directly into your specification text CommPLU_RefGuide_P400_032, Copyright 202 Uponor. Printed in the United States Uponorengineering.com The Engineer s Resource Portal The Uponor Engineering Resource Center is your single destination for designing and creating a desirable, cost-effective and energy-efficient structure. This portal is custom-made especially for you, the engineer, to help you meet all your goals. Whether it s meeting specific LEED or other green-building certification standards or incorporating value engineering into a project, Uponor can provide all the tools and resources, including specifications, submittals, CAD details, instructional manuals, design guidelines and even industry resource links to get you moving and on your way to a successful build. Uponor, Inc th Street West Apple Valley, MN 5524 USA Tel: Fax: Uponor Ltd Argentia Rd., Plaza, Ste. 200 Mississauga, ON L5N W CANADA Tel: Fax: