Zurn PEX Plumbing Design And Application Guide
Zurn PEX Plumbing Design and Application GuideZurn PEX Tubing and FittingsCertifiedNotice: This manual contains recommended installation instructions for Zurn PEX hotand cold water systems. Failure to observe these installation instructions may result insubstandard performance of the system. Zurn Industries, Inc. expressly disclaims anyresponsibility or liability for substandard performance resulting from failure to complywith installation instructions.1-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideZURN PEX PLUMBINGDesign and Application GuideSTANDARDS, LISTINGS, APPROVALS, OR ACCEPTANCESPEX Plumbing Systems are covered in the following codes, standards orapprovals:ASTM F876ASTM F877ASTM F1807American Society for Testing and MaterialsANSI/NSF Standard 14NSF InternationalANSI/NSF Standard 61NSF InternationalCAN/CSA B137.5Canadian Standards AssociationIPCInternational Plumbing CodeIRCInternational Residential CodeUPCInternational Association of Plumbing andMechanical OfficialsState and LocalCity, County, and State ResidentialCode AcceptanceContact your local plumbing officialThe standards and code bodies above may not list all elements comprisingthe Zurn PEX System. Check your local code under “cross-linkedpolyethylene” or “PEX.”MARKINGAll Zurn PEX tube is marked with nominal size, wall thickness, pressurerating, NSF-PW, and the applicable ASTM standards. Zurn PEX tubeis for water applications only. Do not use with LP or natural gas.See Figure 1.ASTMStandardsZurn PEX–NSF-pw-Cl-TD–ASTM F876/F877ManufacturerStandardDimension Ratio–SDR-9OD Size–100 PSI at 180 FPressure/TemperatureRating–3/4" CTS - 7/8"–AA-12-21-95-18:36Production CodeListing Agency andChlorine RatingFigure 1It is the sole responsibility of the installer to assure that this productmeets local codes.Page 11-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideWHAT IS ZURN PEX?Zurn PEX: is a flexible pipe for hot and cold water plumbing applications. is listed by NSF as safe for use with drinking water, meets or exceedsthe requirements of ASTM F877. is installed using insert and crimp system of fittings, tools, andGo/No-Go gauges. can be used in residential and light commercial hot and cold waterplumbing applications. can be used in hydronic radiant floor applications. may be bent in a radius as small as six (6) times the outside diameterof the tube.IMPORTANT – Zurn PEX: should not be stored or installed where it will be exposed to direct orindirect ultraviolet light (i.e. sunlight). should not be exposed to direct flame. should not be used in excessive operating conditions inconsistent withpressure ratings that appear on tubing and applicable standards. should not be subjected to prolonged exposure to free chlorine concentrations greater than 4 ppm.CAUTION:Never use any chemicals, pipethread compounds, putty, mineralor linseed oil products. They coulddamage your pipe and fittings. should not be used in contaminated soils. should not be exposed to materials that affect the basic properties ofcross-linked polyethylene, brass, or copper.NOTICE!Zurn PEX fittings are identified by the letters “Q” and “PEX” stampedonto the body of the fitting. The PEX fittings also have two ribs on theinsert portion of the fitting.Zurn PEX crimp rings are identified by the letters “Q” and “PEX”stamped on the outside of the ring. Zurn PEX crimp rings are coloredblack for easy identification.WARNING: It is the installer’s responsibility to avoid mixing PB andZurn PEX components. Zurn Industries, Inc. does not guarantee orin any way warrant the installation of Zurn PEX systems due to thewide variance in installation practices.Mixing of PB and Zurn PEX components may cause plumbing systemfailure and result in severe water damage.Page 21-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideHOW THE ZURN PEX SYSTEM WORKSThis insert and crimp-ring system is designed to help a professionalplumber make permanent, tightly sealed, leakproof connections forcreation of a well-functioning Zurn PEX pipe hot and cold waterdistribution system or to repair any existing system. The tools andrecommended techniques are explained in this guide.FittingsMade of strong brass, the fitting isinserted into the end of the PEX pipe.A tightly sealed connection is formed byproperly crimping a copper ring on thepipe. This process presses the fitting ribsinto the pipe.Crimp ToolThe tempered steel tool provides positiveinterlocking jaw action for precision crimping.Crimp RingAnnealed and ductile with a black finish,this precision-formed copper ring goeson the pipe and must be located over theribs of the inserted fitting. When crimped,it permanently seals the pipe and fittingtogether.Cutting ToolDesigned for smooth, even cutting, thetool’s jaw will fit firmly over the pipe toallow a square, burr-free cut.GaugeThis flat steel “Go/No-Go” gauge lets youdetermine if a crimped connection wasproperly made.Crimp Ring Removal ToolThis compact tool assists in removing thecrimp ring and PEX tubing without damaging the fitting. Using the ring removal toolallows a fitting to be safely reused.Page 31-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideMAKING A CONNECTIONMeasure and cut the pipe. Be sure youhave a square burr-free cut. An unevenor jagged cut may cause an improperconnection.Next, slip a copper crimp ring onto thepipe. Do not use hose clamps!FittingShoulder1/8" to 1/4"Crimp RingSpacingNow insert the fitting into the pipe up tothe fitting shoulder. Position the crimpring 1/8" to 1/4" from the end of the tube.An improperly positioned ring may produce a weak connection.Page 490 Position the tool so the crimp ring iscompletely covered by the tool jaws.Keep the tool at a 90 angle to thefitting and close it completely.1-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideUSING THE ZURN CHECKING GAUGEAfter making crimp connections, use the appropriate opening of this flat“Go/No-Go” Gauge to check your finished crimp. The “Go” openingshould go freely across a crimped ring anywhere on its diameter with thepossible exception the upset area on the ring surface caused by the tooljaws closing. Do not force the gauge across the ring. The “No-Go” openingshould not go across a crimped ring anywhere. If the crimp fails eithertest, cut out the fitting and replace.Go and No-Go OpeningsDO’sAlways place the gaugeopening on the crimp ringat a 90 angle for anaccurate check.Be certain you use thegauge opening sized forthe diameter of your pipe.Replace non-conformingcrimps.Don’t try to save time byrecrimping a crimp thatdoes not gauge properly.The fitting must be cutout and replaced.Don’t modify the gaugeopening areas for anyreason. They have beencarefully manufactured to.002 inch tolerance.DON’TsNoYesDon’t slide the gauge ontothe connection by slidingit along the tube. Push itdirectly onto the crimpedring.Page 51-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideTHE PERFECT CRIMP CONNECTIONThe PEX tubing must be placed to the fitting shoulder. For fittingswithout a shoulder, the PEX tubing must be placed far enough to coverall the fitting barbs. The crimp ring is placed 1/8" to 1/4" from theshoulder or end of the PEX tubing.Fitting ShoulderNo dimples,“ears,” orleak path gaps.Proper pressureand frictionbetween fittingand pipe.MechanicalInterlockTubing forced firmlybetween ribs.INCORRECT CONNECTIONS AND THE CONSEQUENCES#1 Ring crimped over end of the tube.Result: Does not cover enough ribs.#1#2 Tool was not at 90 to the tube when crimped.Result: Insufficient rib coverage; plastic dented.#2#3 Ring not completely covered by crimping tool.Result: Ring distortion, non-uniform crimp.#3#4 Tube not cut squarely.Result: Insufficient rib coverage.#4#5 Ring too far from pipe end.Result: Insufficient rib coverage.#5In every case, the final consequence is improper sealing and leak potential.Page 61-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideADJUSTMENT (QCRT2T, QCRT3T, QCRT4T)Zurn crimp tools are factory set to provide proper crimps. This shouldbe checked before use by making a test crimp connection and checkingit with the crimp gauge. As long as the finished crimp connection gaugesproperly, there is no need to adjust the tool. We recommend checkingeach crimp connection with the Zurn Go/No-Go gauge.When the tool wears and the crimps no longer gauge properly, the toolneeds adjusting. Follow these simple steps.1. Loosen the bottom locking setscrew two turns using the hex wrenchsupplied with the tool.2. Close tool until the jaws just touch and increased resistance is felt.This is the pre-load point.3. Turn the top Adjusting Screw until the distance between the raised“ ” marks on the handles is between 7 and 8-1/2 inches. Tighten thebottom locking setscrew.4. Make a test crimp connection and check it with both the “Go” and“No-Go” openings of the gauge. If necessary, make additional adjustments. If the “No-Go” opening goes over the crimped ring, the toolis too tight. The distance between the “ ” marks should be decreased.If the “Go” opening does not go over the crimped ring, the tool istoo loose and the distance between the “ ” marks should be increased.5. Apply a light oil to the tool pivot points each time the tool is adjusted.Failure to lubricate the tool will shorten its life.Adjusting ScrewLocking Screw7" - 8 1/2"WARNING:Increasing the pre-load distancebeyond 9" will make the tool hardto use and shorten tool life becauseof excessive stress.Page 71-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideADJUSTMENT (QCRT5T)Zurn crimp tools are factory set to provide proper crimps. This shouldbe checked before use by making a test crimp connection and checkingit with the crimp gauge. As long as the finished crimp connection gaugesproperly, there is no need to adjust the tool.When the tool wears and the crimps no longer gauge properly, the toolneeds adjusting. Follow these simple steps.1. Loosen the bottom locking setscrew two turns using the hex wrenchsupplied with the tool.2. Close tool until the jaws just touch and increased resistance is felt.This is the pre-load point.3. Turn the top Adjusting Screw until the distance between the insidecorners of the handles is 13 inches. Tighten the bottom locking setscrew.4. Make a test crimp connection and check it with both the “Go” and“No-Go” openings of the gauge. If necessary, make additional adjustments. If the “No-Go” opening goes over the crimped ring, the toolis too tight. The distance between the inside corners of the handlesshould be decreased. If the “Go” opening does not go over the crimpedring, the tool is too loose and the distance between the inside cornersof the handles should be increased.5. Apply a light oil to the tool pivot points each time the tool is adjusted.Failure to lubricate the tool will shorten its life.Adjusting ScrewLocking ScrewWARNING:Increasing the pre-load distancebeyond 13" will make the tool hardto use and shorten tool life becauseof excessive stress.Steel Handled13"QCRT5T onlyPage 81-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideINSTALLING ZURN PEX PIPEAlways strappipe downbefore bending.Zurn PEX straps and hangers hold pipe inposition and prevent strain on fittingswhen the pipe is bent.6'Straps can be as far as 6 feet apart if thepipe is continuously supported.32"Vertical runs need support at every floorlevel.Horizontal runs should be supportedevery 32 inches.Or, bymakinga loop.12"Don’t bend in aradius of lessthan 8 timesO.D. of tubing.Since Zurn PEX expands or contracts oneinch every 100 feet of pipe with every 10 of temperature change, you must allowfor expansion and contraction in longruns with a 12-inch horizontal offset.Page 9Always cut the pipe longer than necessaryto allow some slack for any contractionin the pipe.Strapping support should be firm but looseenough to allow the pipe to move backand forth as it expands and contracts.1-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideINSTALLING ZURN PEX PIPE, cont’d.If installing under a slab, use only a continuous length through the trench.There must be no connections under the slab.For details on buried pipe installations, see Page 19 of thisInstallation Guide.Long exposure to sunlight can weakenmost plastics. Always store Zurn PEXtubing under cover – never in anylocation exposed to direct sunlight.WallStudProtect pipe with a steel plate if it’swithin two inches of a stud, plate, orjoist nailing surface.SleeveZurn PEX may be connected directly toelectric water heaters for residentialplumbing applications. Zurn PEX has brassmale and female threaded adapters andswivel adapters that can be used for thisapplication.Zurn PEX must be kept at least 6" awayfrom the exhaust vent of a gas-fired waterheater. This is easily accomplished byusing flexible water heater connectors.When the inlet and outlet connections arewell away from the exhaust vent, suchas most heaters with side connections,Zurn PEX may be connected directly tothe water heater.Use protective sleeves or bushings onZurn PEX tube when penetrating metalstuds. Sleeves and bushings are notrequired when penetrating ordinarywood or particle board if the holes are atleast 1/8" larger than the tube size andtube movement is not restricted.Be sure to protect pipe with plastic sleeveswhere it enters and leaves the slab.Best results are achieved by usingclamps, pipe insulators, and strappingdesigned for plastic plumbing systems.Page 101-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideINSTALLING QICKPORT MANIFOLDSThe QickPort Manifold System is designed for efficient installation bythe plumber. The purpose of this guide is to point out some of thefeatures of the system and how to use them.Other sections of this Zurn PEX illustrated Installation Guide should bereferred to for general information on the use and installation of theZurn PEX plumbing systems.Sizing the ManifoldThe manifold system allows individual hot or cold lines to be connecteddirectly to each fixture inlet from the manifold. To size a cold watermanifold, count the number of cold water locations in the house. Besure to include outside hose bibbs. Also, include a line for the refrigeratorice maker, particularly if the refrigerator is not on the same wall as thekitchen sink.To size the hot water manifold, count the number of hot water locationsin the house.QickPort manifolds are available in increments of five (5) outlet ports.Always purchase a manifold that has at least as many ports as the househas hot or cold locations. Attempting to supply two locations from asingle manifold outlet may give unsatisfactory performance and mayviolate the local plumbing code. For a double vanity that has a continuouscabinet, some local codes will allow the second lavatory faucet to beconnected to the first by using a tee fitting under the vanity. This willreduce the needed manifold ports by one on each manifold but caremust be taken that it is acceptable to the local authorities.All unused ports should be capped, even if the valve is closed.Locating the ManifoldIn general, manifolds should be installed in an accessible location verynear the water heater.They should be accessible because one-half of the joints in the plumbingsystem are at the manifolds and an accessible location improves theplumber’s efficiency.The hot water manifold should be as close as possible, but not closerthan 18" from the water heater outlet. This will assure the minimumtime for hot water to arrive at a fixture.The cold water manifold may be located in any convenient location,but it is usually located near the hot water manifold or near theincoming water supply.Page 111-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideINSTALLING QICKPORT MANIFOLDS, cont’d.Cold WaterIn ToWater HeaterHot WaterOut ToManifoldCold WaterOut ToFixturesHot WaterOut ToFixturesWaterHeaterManifold SystemIncomingWater SupplyPage 121-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideINSTALLING QICKPORT MANIFOLDS, cont’d.Horizontal Manifold InstallationFirst, before installing the manifold, attach any shut-off valves that aregoing to be connected to the manifold.Next, position the manifold in the desired location and nail or screw themounting bracket to the studs. Make sure all valve handles have roomfor operation.NOTE: A vertical manifold installationusually requires bending the Zurn PEXtube immediately off the manifold.Extra care must be taken to assurethat the tube is not bent in a radiussmaller than the minimum permittedfor Zurn PEX which is six (6) timesthe outside diameter of the tube. Also,make sure that bending stress is notapplied to the fitting that connects thetube to the manifold.Do not install two vertical manifoldson opposite sides in the same studcavity. There generally isn’t room forcorrect bending of the Zurn PEX tube.Vertical Manifold InstallationQickPort manifolds may be coupled end to end and installed verticallyalong a stud. Be sure to install any main shut-off valves before mountingthe manifold to the stud.Position the manifold in the desired location and fasten it to the studs.Selecting the Tube SizeQickPort manifolds are designed for easy connection to 3/8" or 1/2" CTSZurn PEX tube. When selecting the tube size, the following factorsshould be considered:1. local code requirements;2. water demand of the fixture;3. distance from the manifold to the fixture;4. elevation change from manifold to the fixture; and5. water pressure available to the manifold.Where possible, we recommend the use of 3/8" tubing. The smaller tubingmeans hot water arrives at the fixture faster and the smaller tubing canmake smaller bends. With the reduced water usage of most sink andlavatory faucets and showers (typically 2.0 GPM), 3/8" tube is usuallyadequate unless the distance to be covered is more than 80 feet. Thepressure loss information for 3/8" and 1/2" CTS tube is listed below.QickPort manifolds have less than 1 psi pressure drop at total flow ratesup to 20 GPM. Even if several branches are operating simultaneously,the pressure loss due to flow through the manifold is minimal.Flow(GPM)123456Page 133/8"Pressure Droppsi/100 e Droppsi/100 7.29.010.81-800-872-7277 · www.zurn.com
Zurn PEX Plumbing Design and Application GuideINSTALLING QICKPORT MANIFOLDS, cont’d.Running the Zurn PEX TubeAfter the manifolds have been installed and the tube size selected, thenext step is to install the Zurn PEX tube. When installing the tube,there are several points that must be considered:1. Bending2. Expansion and Contraction3. Abrasion4. Heat Sources5. Friction Damage6. Freeze ProtectionZurn PEX’s flexibility is key to making manifold systems practical.Like any material, it can be damaged if it is bent too tightly.TUBEmimuMin ndBeiusRadWRONGRadius less than minimum. Tubing strainsbecomes oval. Maykink or foil.The minimum recommended bend radius for Zurn PEX is six (6) timesthe outside diameter of the tube when bending with the natural curvatureof the coil. For 3/8" tube, this is a radius of 3" and for 1/2" tube, theminimum radius is 4". If the tube must be bent against the naturalcurvature of the coil, multiply the values by 3.Zurn PEX expands and contracts more than most piping materials. Besure to allow slack of approximately 1/8" per foot of length of tube tocompensate. This will make sure the tube does not apply tension to theconnections at the manifold or the fixture inlet.Use protective sleeves or bushingson Zurn PEX tube when penetrating metal studs. Sleeves and bushings are not required when penetrating ordinary wood or particleboard if the holes are at least 1/8"larger than the tube size and tubemov
Zurn PEX Plumbing Design and Application Guide Zurn PEX Tubing and Fittings Certified Notice: This manual contains recommended installation instructions for Zurn PEX hot and cold water systems. Failure to observe these installation instructions may result in substandard performance of the system. Zurn Industries, Inc. expressly disclaims any
1/2" Henco Pex-al-Pex 5/8" Henco Pex-al-Pex 3/4" Henco Pex-al-Pex 1" Henco Pex-al-Pex 7.762 14.20604 57.68601 133.06195 8.00525 14.44692 33.32412 5.11811 4.95121 11.42075 3.01837 1.41021 3.25287 7.952 14.56693 60.25445 138.98646 8.20210 15.08351
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Pipe Material Applications Service Temperatures Maximum Working Pressure PEX/AL/PEX Hot & cold water supply, under floor heating, radiator heating, etc.-40 C - 95 C PN14 14 bar Technical data of overlapped welded multilayer pipes (Pex-Al-Pex) Normal Size 16 20 25 32 40 50 63 Outside Diameter (mm) 16 20 25 32 40 50 63
Polyethylene (PEX) Tubing . 25 ASTM F 2434: Standard Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR9 PEX Tubing and SDR9 PEX-AL-PEX Tubing. 25 IAPMO – IGC 188: Removable and Non-Removable Push Fit
Each rape header is designed specifically for each cutting platform. With Zürn rapeseed/canola harvesting equipment there is no need to compromise. Reliable spare parts supply Zürn RapsProfi header extensions use many original John Deere components: planetary knife drive with linear stroke, Schumacher cutting system, V-belts, bearings, etc.
Clamp/barb fittings listed to ASTM F2159 approved for PEX-A, PEX-B and PEX-C pipe. Use pipe cutters to make a square cut of the pipe to length. A rough . direct or indirect ultraviolet light (i.e. sunlight). y Do not expose the pipe to dire
The Liebert PEX Chilled Water units (hereafter Liebert PEX CW ) are the next generation series of Precision Air Conditioners (PAC) that provide precise environmental control. The Liebert PEX chilled water models consist of wide range of cooling capacity from 30 kW to 200 kW for large, medium and small data centers.
Anatomy is largely taught in the early years of the curriculum, with 133 some curricula offering spiral learning into later years (Evans and Watt, 2005). This 134 spiral learning frequently includes anatomy relating to laparoscopic, endoscopic, and . 7 .
