1、Performance Requirements forTemperatureActuated, FlowReduction (TAFR)Valves for IndividualSupply FittingsAmerican Society of Sanitary EngineeringASSE Standard #1062 - 2006ASSE Board Approved: OCTOBER, 2006ANSI APPROVAL: NOVEMBER, 2006An American National StandardAmerican Society of Sanitary Engineer
2、ingWestlake, OhioCopyright 2006, 1997Neither this standard, nor any portion thereof, may be reproduced without the written consentof the American Society of Sanitary Engineering.No product may be said to be ASSE approved unless the manufacturer has applied to theASSE, has had his product tested acco
3、rding to the applicable ASSE Standards, and when theproduct has passed the test, displays the ASSE Seal on the product.Instructions for receiving the authorization to display the Seal are available from ASSEsInternational Office. Organizations wishing to adopt or list any ASSE Standard should print
4、theASSE Standard number on the cover page first and in equal or larger type to that of the adoptingor listing organization.General InformationTemperature Actuated Flow Reduction (TARF) Valves for Individual Supply Fittings iASSE Standard #1062 - 2006ii Temperature Actuated Flow Reduction (TARF) Valv
5、es for Individual Supply FittingsASSE Standard #1062 - 2006This foreword shall not be considered a part of the standard; however it is offered to providebackground information.Exposure to high temperature water can result in serious injuries. This problem has beenpublicized by consumer safety organi
6、zations and is addressed in the ASTM F444-88 StandardConsumer Specification for Scald-Preventing Devices and Systems in Bath Areas.This standard covers point of use, temperature actuated, flow reduction (TAFR) valves that areinstalled in-line with or that are integrated into supply fittings. These v
7、alves automaticallyreduce discharge flow to a trickle if water temperature exceeds a preset limit. Other ASSEstandards such as ASSE 1016, ASSE 1017, ASSE 1066, ASSE 1069 and ASSE 1070 havebeen developed for hot and cold water mixing valves that limit discharge temperature and in-line pressure balanc
8、ing valves that minimize pressure variations between the hot and coldwater supplies. TAFR valves are not intended to be installed in place of devices complying withASSE 1016, ASSE 1017, ASSE 1066, ASSE 1069 or ASSE 1070. ASSE recommends thatTAFR valves be installed in accordance with local code requ
9、irements by qualified individuals.Recognition is made of the time volunteered by the working group members who participatedin the revision process, and for the support of the manufacturers.This standard does not imply ASSEs endorsement of a product which conforms to theserequirements.Compliance with
10、 this standard does not imply acceptance by any code body.ForewordTemperature Actuated Flow Reduction (TARF) Valves for Individual Supply Fittings iiiASSE Standard #1062 - 2006Edward LyczkoProduct Standards Committee ChairmanCleveland ClinicCleveland, OhioRand H. AckroydRand EngineeringNewburyport,
11、MassachusettsMichael BeckwithState of Wisconsin Department of CommerceMadison, WisconsinGunnar O. CollinsCollins Backflow Specialists, Inc.Palatine, IllinoisJudson W. CollinsJULYCO ProfessionalsMannford, OklahomaShannon M. CorcoranASSE Standards CoordinatorWestlake, OhioA. Richard EmmersonGeneral In
12、terestBuffalo Grove, IllinoisCharles GrossInternational Association of Plumbingand Mechanical OfficialsWalnut, CaliforniaSteven HazzardASSE Staff EngineerWestlake, Ohio2005-06 Product Standards CommitteeJohn F. Higdon, P.E.Apollo Valves/Conbraco Industries, Inc.Pageland, South CarolinaDale HollowayS
13、GS United States Testing CompanyTulsa, OklahomaValentine Lehr, P.E.Lehr AssociatesNew York, New YorkChuck LottPrecision Plumbing Products, Inc.Portland, OregonPeter MarzecUnited Association ofPlumbers and PipefittersWashington, D.C.Thomas C. PitcherelloState of New JerseyBordentown, New JerseyShabbi
14、r RawalpindiwalaKohler CompanyKohler, WisconsinDavid ViolaPlumbing Manufacturers InstituteSchaumberg, IllinoisJoseph C. Zaffuto, P.E.ASSE Staff EngineerWestlake, Ohioiv Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply FittingsASSE Standard #1062 - 2006Steven HazzardASSE Staff
15、EngineerWestlake, OhioSusan GalaydaProduct Listing Services, Inc.Litchfield, OhioSally RemediosDelta Faucet CompanyIndianapolis, Indiana1062 Working GroupTemperature Actuated Flow Reduction (TARF) Valves for Individual Supply Fittings vASSE Standard #1062 - 2006Table of ContentsSection I 11.0 Genera
16、l . 11.1 Application 11.2 Scope . 11.3 Reference Standards 2Section II 32.0 Test Specimens 32.1 Samples Submitted 32.2 Samples Tested 32.3 Drawings. 32.4 Rejection 3Section III . 43.0 Performance Requirements and Compliance Testing . 43.1 Working Pressure Test . 4Figure 1 43.2 Deterioration at Extre
17、mes of Manufacturers Temperature and Pressure . 53.3 Flow Rate Test 5Figure 2 63.4 Flow Reduction and Reset Test 6Table 1 73.5 Life Cycle Test 7Figure 3 83.6 Hydrostatic Pressure Test . 8Section IV . 94.0 Detailed Requirements . 94.1 Materials in Contact with Water 94.2 Coatings . 94.3 Markings . 94
18、.4 Installation Instructions . 94.5 Maintenance . 104.6 Field Testing . 10Section V 115.0 Definitions . 11vi Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply FittingsASSE Standard #1062 - 2006Temperature Actuated, FlowReduction (TAFR) Valves forIndividual Supply FittingsSectio
19、n I1.0 General1.1 ApplicationThis standard applies to Temperature Actuated, Flow Reduction (TAFR) Valves for IndividualSupply Fittings (herein referred to as the “device”) which react to high temperature water. Thesevalves are intended for use in-line with or are integrated into individual plumbing
20、supply fittingssuch as shower heads, bath and utility faucets and sink and lavatory faucets.When intended for use by people with disabilities, TAFR valves covered by this standard shall alsocomply with ICC/ANSI Standard A117.1.1.2 Scope1.2.1 DescriptionDevices covered by this standard shall be mecha
21、nically or electrically operated, and shall beinstalled in-line with or integrated into supply fittings. These devices shall automatically reduce flowwithin five (5) seconds to 0.25 GPM (0.95 L/m) or less at 80.0 psi (551.6 kPa) in response to outlettemperatures greater than a preset actuation tempe
22、rature not to exceed 120.0 F (48.9 C) so asto limit exposure to high temperature water discharged from an individual supply fitting.After actuation, the reset open temperature shall not be less than 90.0 F (32.2 C); and shall resetopen automatically or with the use of a manual reset mechanism.1.2.2
23、Size RangeSizes of the devices covered by this standard shall be 1 inch NPS (25 DN) or smaller.1.2.3 Flow Rates Before Actuationa) When the device is integrated into a supply fitting, the flow rate of the assembly prior toactuation shall be in accordance with ASME A112.18.1-2005/CSA B125.1-2005.b) F
24、or devices not integrated into a supply fitting, but that are to be used with a supply fitting thathas a specified minimum flow rate in the ASME A112.18.1-2005/CSA B125.1-2005, theminimum flow rate prior to actuation shall be at least 0.5 GPM (1.9 L/min) greater than theapplicable ASME A112.18.1-200
25、5/CSA B125.1-2005 requirement. If the device is to be usedwith a supply fitting that has a specified maximum flow, no other maximum flow requirementshall be necessary unless the device is used to limit flow.Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply Fittings 11.2.4 Press
26、ure RangeThe devices operating pressure range shall be 10.0 to 80.0 psi (69.0 to 551.6 kPa). The workingpressure range shall be 10.0 to 125.0 psi (69.0 to 861.9 kPa).1.2.5 Temperature RangeThe devices working temperature range shall be 37.0 F to 180.0 F (2.8 C to 82.2 C).1.3 Reference StandardsRefer
27、ence to industry standards shall be to the latest edition.ASME A112.18.1-2005/CSA B125.1-2005 Plumbing Supply FittingsICC/ANSI A117.1 Accessible and Usable Buildings and FacilitiesASME PTC 19.2 Instruments and Apparatus: Part 2 Pressure MeasurementASME PTC 19.5 Application, Part II of Fluid Meters:
28、Interim Supplement on Instruments andApparatus.ANSI/ISA M96.1 Temperature Measurement Equipment2 Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply FittingsASSE Standard #1062 - 2006Section II2.0 Test Specimens2.1 Samples SubmittedThree (3) devices of each size and model shall b
29、e submitted by the manufacturer.2.2 Samples TestedThe testing agency shall select one (1) of each size and model for the full test. Tests shall beperformed in the order listed.2.3 DrawingsAssembly and installation drawings and other data which are needed to enable a testing agencyto determine compli
30、ance with this standard shall accompany devices when submitted forexamination and performance testing under this standard.2.4 RejectionFailure of one (1) device shall result in a rejection of that size and model.Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply Fittings 3ASSE S
31、tandard #1062 - 2006Section III3.0 Performance Requirements and Compliance Testing3.1 Working Pressure Test3.1.1 PurposeThe purpose of this test is to determine that the device, when subjected to a working pressure of250.0 psi (1723.8 kPa) or two (2) times the manufacturers maximum rated working pre
32、ssure,whichever is greater, shall show no leaks or indications of damage.3.1.2 ProcedureInstall the device in a test setup in accordance with Figure 1. Slowly open the throttling valve toinitiate a flow of cold water at 50.0 F 10.0 F (10.0 C 5.5 C) to purge the system of air. Closethe throttling val
33、ve and gradually increase the pressure on the devices inlet to 250.0 psi 10.0psi (1723.8 69.0 kPa) or two times the manufacturers maximum rated working pressure,whichever is greater. Maintain that pressure for a period of one and one-half (1) minutes andobserve for external leakage. Release the pres
34、sure and visually inspect the device for damage.Figure 13.1.3 CriteriaAny indication of leakage or evidence of damage that would prevent full compliance with theremaining sections of this standard shall result in a rejection of the device.Note:1. Accuracy of pressure measurements shall be in accorda
35、nce with the requirements of ASME PTC 19.2 or19.5 as applicable.2. Accuracy of temperature measurement shall be within 2.0 F (1.1 C) and the response time of thethermocouple shall be one (1) second or less.3. Accuracy of the thermocouple and associated measurement equipment shall be within 1.0 F (0.
36、6 C).The thermocouple associated measurement equipment shall be capable of detecting a 63.2% step changewithin no more than one (1) second, and the thermocouples shall be Type J or Type T per ANSI/ISA M96.1.SupplyCold: 50.0 10.0 F (10.0 C 5.5 C) at250.0 psi 10.0 psi (1723.8 kPa 69.0 kPa)Hot: 180.0 F
37、 5.0 F (82.2 C 2.8 C) at125.0 psi 5.0 psi (861.9 kPa 34.5 kPa)Supply ValvePressure GaugePressure RegulatorThermocoupleTAFR ValveClear Safety ShieldThrottlingValveDischarge4 Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply FittingsASSE Standard #1062 - 20063.2 Deterioration at
38、Extremes of ManufacturersTemperature and Pressure3.2.1 PurposeThe purpose of this test is to determine that the device will withstand water at a temperature of200.0 F 5.0 F (93.3 C 2.8 C) without damage or impairment of performance capabilities.3.2.2 ProcedureInstall the device in a test set-up in a
39、ccordance with Figure 1. Fully open the throttling valve, andthen slowly open the supply valve to flow water through the device to purge the system of air.Increase the water temperature until the device actuates closed to the reduced flow position. Whilethe device is still in the reduced flow positi
40、on, adjust the water pressure to 125.0 psi 5.0 psi (861.9kPa 34.5 kPa) and increase the water temperature to 200.0 F 5.0 F (93.3 C 2.8 C) fora period of 30 minutes 3 minutes. Observe for external leakage. Release the pressure, allow thedevice to cool, and visually inspect for damage.3.2.3 CriteriaAn
41、y indication of leakage or evidence of damage that would prevent full compliance with theremaining sections of this standard shall result in a rejection of the device.3.3 Flow Rate Test3.3.1 PurposeThe purpose of this test is to determine the flow rates of the device.3.3.2 ProcedureInstall the devic
42、e into a test setup in accordance with Figure 2. The maximum linear run is notapplicable for this test.a) For devices integrated into supply fittings, initiate a flow of water at 104.0 F 5.0 F (40.0 C 2.8 C) through the device. Adjust the inlet pressure at the pressure gauge in accordancewith the AS
43、ME A112.18.1-2005/CSA B125.1-2005 requirements. Allow the flow to stabilizeand record the flow rate.b) For devices not integrated into a supply fitting, initiate flow of water at 104.0 F 5.0 F (40.0C 2.8 C) through the device. Adjust the inlet pressure at the pressure gauge in accordancewith the ASM
44、E A112.18.1-2005/CSA B125.1-2005 requirements. Allow the flow to stabilizeand record the flow rate.Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply Fittings 5ASSE Standard #1062 - 2006Figure 23.3.3 Criteriaa) For devices integrated into supply fittings a flow rate not falling
45、within the ASME A112.18.1-2005/CSA B125.1-2005 requirement for the supply fitting shall result in a rejection of thedevice.b) For devices not integrated into a supply fitting a flow rate that is less than 0.5 GPM (1.9 L/min)greater than the ASME A112.18.1-2005/CSA B125.1-2005 requirement shall resul
46、t in arejection of the device.3.4 Flow Reduction and Reset Test3.4.1 PurposeThe purpose of this test is to determine that the device automatically reduces the discharge flowwhen the inlet water supply temperature exceeds 120.0 F (48.9 C) and automatically resets orcan be manually reset after the inl
47、et temperature has decreased to 90 F +5.0 F/-0.0 F (32.2 C+2.8 C/-0.0 C).Note:1. Test system piping and components shall match the test valve.2. Accuracy of pressure and flow measurements shall be in accordance with the requirements of ASME PTC19.2 or 19.5 as applicable.3. Accuracy of the thermocoup
48、le and associated measurement equipment shall be within 1.0 F (0.6 C).The thermocouple associated measurement equipment shall be capable of detecting a 63.2% step changewithin no more than one (1) second, and the thermocouples shall be Type J or Type T per ANSI/ISA M96.1.Hot: 80.0 psi 2.0 psi (551.6
49、 kPa 13.8 kPa)Cold: 80.0 psi 2.0 psi (551.6 kPa 13.8 kPa)Mixing ValveFlow ControlValveFlow Meter Maximum Linear Run 24 inches (609.6 mm) PressureGaugeTAFRValveDischargeThermocouple within0.8 inches (20.3 mm)of TAFR valve inlet6 Temperature Actuated Flow Reduction (TARF) Valves for Individual Supply FittingsASSE Standard #1062 - 2006Table 13.4.2 ProcedureInstall the device in a test setup in accordance with Figure 2 with a mixing valve capable oftemperature change setti
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