Typical Branch Line - Watts Water

1 Sizing and PlacementAs shown above, it has been established that the preferred locationfor the Water hammer arrestor is at the end of the Branch line betweenthe last two fixtures location of the Water hammer arrestor shown above applies tobranch lines that do not exceed 20 feet in length, from the start of thehorizontal Branch line to the last fixture supply on this Branch the Branch line exceeds the 20 foot length, an additional waterhammer arrestor should be used. This practice is best defined by tworules which have been established to cover the placement of waterhammer Hammer ArrestorTypical Branch LineRiserRule 1covers multiple fixture Branch lines which do not exceed20 feet -Fixture unit sizing and selection table is used toselect the required PDI unit ( Water hammer arrestor).Rule 2covers multiple fixture Branch lines which exceed 20 feetin -Fixture unit sizing and selection table is used toselect the required PDI unit ( Water hammer arrestor).

2 The sum ofthe fixture unit rating of units X and Y shall be equal to or greaterthan the demand of the to 20'Over 20'Rule 1 Rule 2 Selection for Long Piping RunsThe majority of sizing and selection applications will involve single andmultiple fixture Branch lines. These are easily handled with the sizingand selection table. The remainder of the applications involve individ-ual runs of piping to a remote item of equipment. The properly sizedwater hammer arrestor for such applications can be determined bythe tables , the flow pressure in Branch lines serving fixtures should neverexceed 55psi. Pressure reducing valves should be installed to maintainproper pressure. When flow pressures are 65 to 85psi the next sizewater hammer arrestor should be selected. Refer to sizing table forwater pressure over sizing data in this section is based on flow velocities of 10 fps orless.

3 The certification testing was conducted with a velocity of 10 fpsto offer assurance that PDI approved units were capable of handlingshock of maximum intensity that may be long runs of piping are employed to serve a remote item ofequipment, the Water hammer arrestor should be located as close aspossible to the point of quick closure. At this location, the Water ham-mer arrestor will control the developed energy and prevent the shockwave from surging through the piping system. A Typical example ofplacement is as Water Pressures up to 65psiLENGTH OF PIPE (ft)NOMINAL PIPE DIAMETER - 2"3 4"1"11 4"11 2"2"25'AABCDE50'ABCDEF75'BCDAEFEF100'CDE FCFFF125'CDFAFEFEFF150'DEFDFFFFFFOver 65 psi and up to 85psiLENGTH OF PIPE (ft)NOMINAL PIPE DIAMETER - Pipe1 2"3 4"1"11 4"11 2"2"25'BBCDEF50'BCDEFCF75'CDEFCFFF100'DE FCFEFEFF125'DECFDFFFBFFF150'EFCFFFDFFFFF FS izing TableSizing and Selection TableLong Run of PipingQuickClosureValveOutletShockWater Hammer ArrestorFeatures NPT solid hex brass adapter or solder end connectionfor easy installation Approved for installation with no access panel required May be installed in new or existing plumbing systems witha standard pipe tee vertically, horizontally or at any angle PDI Listed (PDI WH201)

4 Maintenance free unit piston is the only moving part Air pre-load is 60 psi ( bar) Factory air charged and permanently sealedPressure TemperatureOperating Pressure: Designed to operate on all domestic andcommercial lines @150psi ( bar) working Range: 33 F to 180 F ( C to 82 C).MaterialsBodies: Copper tubingPistons: PolypropyleneO-Ring: EPDMA dapter: BrassStandardsListed by IAPMO, ASSE 1010 approved, ANSI , PDI WH201 approved and WeightPre-charged Air ChamberPermanentlySealed from Water SystemNPT BrassAdapterfor EasyInstallationABSeries 15M2 For Commercial/Residential Systems5 SIZE (DN)DIMENSIONSWEIGHT (lbs.)(kgs.) 2"15M2-A11 4"15M2-B13 "15M2-C15 "15M2-D21 "15M2-E21 "15M2-F25 2"15M2-AS11 4"15M2-BS11 "15M2-CS13 "15M2-DS21 "15M2-ES21 "15M2-FS21 1050 2010 WattsUSA:No.

5 Andover, MA Tel. (978) 688-1811 Fax: (978) 794-1848 :Burlington, ONT. Tel. (905) 332-4090 Fax: (905) 332-7068 A Watts Water Technologies Hammer ArrestorsSIZEMODELORDERMODELORDERCROSSRE F. PDI(DN) " 15 15M2-A 0750140 15M2-AS 0750150 1-11A3/4" 20 15M2-B 0750141 15M2-BS 0750151 12-32B1" 25 15M2-C 0750142 15M2-CS 0750152 33-60C1" 25 15M2-D 0750143 15M2-DS 0750153 61-113D1" 25 15M2-E 0750144 15M2-ES 0750154 114-154E1" 25 15M2-F 0750145 15M2-FS 0750155 155-330F15M2S15M2 Features Pre-charged air chamber Sealed in diaphragm Rechargeable Stainless steel chamber constructionOperating Pressure:Designed for residential/domesticwater systems on lines up to 150psi ( bar) Range:33 F to 180 F ( C-82 C)Maximum Velocity:10 fps (.93 mps)Maximum Shock Pressure:200psi ( bar)ModelsMODELDESCRIPTIONSIZECONNECTION Hammer Arrestor Only1 2" 15 NPT150A-HA Water Hammer Arrestor and Fitting3 4"20 Hose150 HAFitting Only3 4"20 HoseSeries 05 For Light Commercial/Residential SystemsTable A Fixture Units Sizing InformationWEIGHT IN FIXTURE-UNITSTYPE OF Closet PFFlush Valve88 55 Water Closet PFFlush Tank55 Pedestal Urinal PFFlush Valve44 Stall or Wall Urinal Flush Valve PF44 Stall or Wall Urinal Flush Tank PF22 LavatoryFaucet211 211 2111 BathtubFaucet423211 211 2 Shower HeadMixing Valve423212 Bathroom GroupFlush Valve Closet 883 Bathroom GroupFlush Tank Closet 663 Separate ShowerMixing Valve 212 Service SinkFaucet333 Laundry Tubs (1-3)

6 Faucet 333 Combination Fixture Faucet 333 For additional information, send for Plumbing Code Requirements3 8" 05-PEX-TModel 05H-M13 4" (20mm) Hose Typespecially designed for in- line use with washing machinesSizing and PlacementThe fixture unit valve shown in the cold and hot Water columns of Table A below are utilized in the sizing of Water hammer the total number of fixture units has been calculated for the hot and cold Water Branch lines serving a group of fixtures, this number canbe applied to the sizing and selection Table B below to determine the appropriate size Water hammer arrestor for the hot and cold Branch PRESSURE - PSIPipePipeand Number of 150A valves to installSizeUp 2-150A 1 2-150A 2-150A 2-150A 3 2-150A 2-150A 11 For additional information.

7 Send for 8"05-CXT5 8" 05-C3 4" 05-QCThe noise from banging pipes is caused by shocks ofhigh speed Water flowing in the piping system whena fixture is suddenly closed. Sudden stoppage of thewater (a non-compressible liquid) flowing at a given pres-sure and velocity causes a surge or spike of pressure andis called Water hammer. When this occurs a pressure wavetravels back through the piping until it finds a point of , clothes washers, fast closing positive shutoffvalves incorporated in the system, all contribute to creatingwater shock which is not only annoying but damaging topipes and appliances. Watts Water Hammer Arrestorsincorporate a permanent pre-charged sealed air chamber toabsorb the shock. The sealed chamber prevents the loss ofair to the Water and ensures long and trouble-free life.

8 Allpotential leak points are permanently B Series 15M2 Sizing and SelectionSIZE (DN)CROSS FIXTURE UNITSREF. PDI 2151-11A3 42012-32B12533-60C11 43261-113D11 240114-154E250155-330 FSeries 150 AFor Residential Systems OnlyWhat is Water Hammer?Straight ModelsMODELSIZE (DN)CONNECTION 810 NPT11 43251 215 NPT11 43251 215 CPVC11 829411 420 Hose25063 420 Hose33 1681611 215 Sweat12551 420 Sweat12547 816OD 43255 ModelsMODELSIZE (DN)CONNECTION 48OD 470413 810OD 810OD Comp. x Reverse Comp. Nut213 1672413 816OD Comp. x Reverse Comp. Nut31 1678413 810 PEX21 458411 215 PEX21 458411 215 Quick-Connect35 89373 420 Quick-Connect33 3210493 - WeightABBAM odels05 For NPT threaded applications05-CFor compression installation on 1 2" CTS new or retrofit05-QCArrestor offered with Quick-Connect Tee05H-M1 For inline use with washing machines05-C-TFor either 1 4" icemaker or 3 8" lav supply tube installation05-CXTFor direct installation on supply stop either between stub outand stop or between stop and supply tube05-PEX-TFor either 3 8" or 1 2" inline PEX installationFor complete list of models, send for Plumbing Water building Water supply systems in whichquick-acting valves are installed shall be provided with devices toabsorb the hammer caused by high pressures resulting from thequick closing of these valves.

9 These pressure-absorbing devicesshall be approved mechanical devices. Water pressure-absorbingdevices shall be installed as close as possible to quick-acting Plumbing Water Hammer. The flow velocity of the Water distributionsystem shall be controlled to reduce the possibility of Water ham-mer. A Water hammer arrestor shall be installed where quick-closingvalves are utilized. Water hammer arrestors shall be installed inaccordance with the manufacturer's specifications. Water hammerarrestors shall conform to ASSE Economical and effective single fixture protectionagainst Water pressure shock May be installed in concealed locations without accesspanels Factory air charged and not rechargeable May be installed in new or existing plumbing systemsvertically, horizontally or at any anglePressure & TemperatureOperating Pressure:Designed especially for use in lightcommercial or residential applications on lines up to 150psi( bar) working Range:33 F to 180 F ( C - 82 C)Air Preload:60psi ( bar)StandardsCertified to ASSE 1010 and listed by Pre-charged air chamber Sealed in diaphragm Rechargeable Stainless steel chamber constructionOperating Pressure:Designed for residential/domesticwater systems on lines up to 150psi ( bar) Range:33 F to 180 F ( C-82 C)Maximum Velocity.

10 10 fps (.93 mps)Maximum Shock Pressure:200psi ( bar)ModelsMODELDESCRIPTIONSIZECONNECTION Hammer Arrestor Only1 2" 15 NPT150A-HA Water Hammer Arrestor and Fitting3 4"20 Hose150 HAFitting Only3 4"20 HoseSeries 05 For Light Commercial/Residential SystemsTable A Fixture Units Sizing InformationWEIGHT IN FIXTURE-UNITSTYPE OF Closet PFFlush Valve88 55 Water Closet PFFlush Tank55 Pedestal Urinal PFFlush Valve44 Stall or Wall Urinal Flush Valve PF44 Stall or Wall Urinal Flush Tank PF22 LavatoryFaucet211 211 2111 BathtubFaucet423211 211 2 Shower HeadMixing Valve423212 Bathroom GroupFlush Valve Closet 883 Bathroom GroupFlush Tank Closet 663 Separate ShowerMixing Valve 212 Service SinkFaucet333 Laundry Tubs (1-3)Faucet 333 Combination Fixture Faucet 333 For additional information, send for Plumbing Code Requirements3 8" 05-PEX-TModel 05H-M13 4" (20mm)