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    CSA B125 3-2012 Plumbing fittings (Third Edition).pdf

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    CSA B125 3-2012 Plumbing fittings (Third Edition).pdf

    1、B125.3-12Plumbing fittingsLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied viewpoints and i

    2、nterests to achieve consensus and develop a standard. Although CSA Group administers the process and establishes rules to promote fairness in achieving consensus, it does not independently test, evaluate, or verify the content of standards.Disclaimer and exclusion of liabilityThis document is provid

    3、ed without any representations, warranties, or conditions of any kind, express or implied, including, without limitation, implied warranties or conditions concerning this documents fitness for a particular purpose or use, its merchantability, or its non-infringement of any third partys intellectual

    4、property rights. CSA Group does not warrant the accuracy, completeness, or currency of any of the information published in this document. CSA Group makes no representations or warranties regarding this documents compliance with any applicable statute, rule, or regulation. IN NO EVENT SHALL CSA GROUP

    5、, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BU

    6、SINESS INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA GROUP HAS BEEN ADVISED OF THE P

    7、OSSIBILITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA Group is not undertaking to render professional or other services for or on behalf of any person or entity or to perform any duty owed by any person or entity to another person or entit

    8、y. The information in this document is directed to those who have the appropriate degree of experience to use and apply its contents, and CSA Group accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained in this document. CSA Group is

    9、a private not-for-profit company that publishes voluntary standards and related documents. CSA Group has no power, nor does it undertake, to enforce compliance with the contents of the standards or other documents it publishes. Intellectual property rights and ownershipAs between CSA Group and the u

    10、sers of this document (whether it be in printed or electronic form), CSA Group is the owner, or the authorized licensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the contrary), and all inventions and trade secrets that may be contai

    11、ned in this document, whether or not such inventions and trade secrets are protected by patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document may violate laws that protect CSA Groups and/or others intellectual property a

    12、nd may give rise to a right in CSA Group and/or others to seek legal redress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA Group reserves all intellectual property rights in this document.Patent rightsAttention is drawn to the possibility that

    13、some of the elements of this standard may be the subject of patent rights. CSA Group shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibi

    14、lity.Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user of this document is authorized to do only the following:If this document is in electronic form:sLOADTHISDOCUMENTONTOACOMPUTERFORTHESOLEPURPOSEOFREVIEWINGITsSEARCHA

    15、NDBROWSETHISDOCUMENTANDsPRINTTHISDOCUMENTIFITISIN0$(b) provide an explanation of circumstances surrounding the actual field condition; and(c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accord

    16、ance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.(5) This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit

    17、 a proposal for change, please send the following information to inquiriescsagroup.org and include “Proposal for change” in the subject line:(a) Standard designation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change. 2012 CS

    18、A Group Plumbing fittingsDecember 2012 1B125.3-12Plumbing fittings1Scope1.1This Standard covers plumbing fittings, including the following:(a) anti-siphon fill valves;(b) automatic compensating valves other than those for individual wall-mounted showering systems;(c) flushometer valves and solenoid

    19、valves;(d) supply line stops;(e) temperature-actuated in-line mixing valves;(f) thermal expansion relief valves; and(g) trap primers.1.2This Standard does not cover the following plumbing supply fittings and accessories, which are covered by ASME A112.18.1/CSA B125.1:(a) automatic compensating valve

    20、s for individual wall-mounted showering systems;(b) bath and shower supply fittings;(c) bidet supply fittings;(d) clothes washer supply fittings;(e) drinking fountain supply fittings;(f) humidifier supply stops;(g) kitchen, sink, and lavatory supply fittings;(h) laundry tub supply fittings;(i) lawn

    21、and sediment faucets;(j) metering and self-closing supply fittings; and(k) supply stops.1.3This Standard does not cover(a)plumbing waste fittings, which are covered by ASME A112.18.2/CSA B125.2;(b) flexible water connectors under continuous pressure, which are covered by ASME A112.18.6/CSA B125.6; a

    22、nd(c) pipes and tubes or pipe and tube fittings.1.4In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may”

    23、 is used to express an option or that which is permissible within the limits of the standard.Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.Notes to table

    24、s and figures are considered part of the table or figure and may be written as requirements.Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application. B125.3-12 2012 CSA Group2 December 20121.5SI units are the units of record in Canada. In this Standard,

    25、the inch/pound units are shown in parentheses.The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.All references to gallons are

    26、 to U.S. gallons.For information on the conversion criteria used in this Standard, see Annex A.2 Reference publicationsThis Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, including all amendments published thereto.ASME/CSA Gr

    27、oup (The American Society of Mechanical Engineers)ASME A112.18.1-2012/CSA B125.1-12Plumbing supply fittingsASME A112.18.2-2011/CSA B125.2-11Plumbing waste fittingsASME A112.18.6-2009/CSA B125.6-09Flexible water connectorsASME A112.19.2-2008/CSA-B45.1-08Ceramic plumbing texturesASSE/ASME/CSA Group (A

    28、merican Society of Sanitary Engineering/The American Society of Mechanical Engineers)ASSE 1016-2011/ASME A112.1016-2011/CSA B125.16-11Performance requirements for automatic compensating valves for individual showers and tub/shower combinationsASME (The American Society of Mechanical Engineers)A112.1

    29、.2-2004Air Gaps in Plumbing Systems (for Plumbing Fixtures and Water-Connected Receptors)A112.18.3-2002 (R2008)Performance Requirements for Backflow Protection Devices and Systems in Plumbing Fixture FittingsB1.1-2003 (R2008)Unified Inch Screw Threads, (UN and UNR Thread Form)B1.20.1-1983 (R2006)Pip

    30、e Threads, General Purpose, InchB1.20.7-1991 (R2008)Hose Coupling Screw Threads, InchB16.18-2001 (R2005)Cast Copper Alloy Solder Joint Pressure FittingsB16.22-2001 (R2005)Wrought Copper and Copper Alloy Solder Joint Pressure Fittings 2012 CSA Group Plumbing fittingsDecember 2012 3ASSE (American Soci

    31、ety of Sanitary Engineering)1017-2003Performance Requirements for Temperature Actuated Mixing Valves for Hot Water Distribution Systems1061-2006Performance Requirements for Removable (b) without removing the piping from the body;(c) without disturbing the finished wall; and(d) using standard tools o

    32、r manufacturer-provided tools.B125.3-12 2012 CSA Group6 December 20124.5 Solder jointsThe dimensions of solder joint ends for connection to copper tubes or fittings (other than factory-assembled parts) shall comply with ASME B16.18 or ASME B16.22, as applicable.4.6 ThreadsPipe threads shall comply w

    33、ith ASME B1.20.1 and hose threads shall comply with ASME B1.20.7.4.7 Flared and ball sleeve (compression) tube fittingsThe screw thread dimensions of flared and ball sleeve (compression) tube fittings shall comply with ASME B1.1.4.8 Accessible designsOperating controls intended for use in accessible

    34、 designs shall(a)be automatically controlled; or(b) meet the following requirements:(i) be operable with one hand;(ii) not require tight grasping, pinching, or twisting of the wrist; and(iii) require an operating force not greater than the applicable value specified in Table 1.4.9 Flushometer valves

    35、The pipe sizes and inlet connections for flushometer valves shall be specified by the manufacturer.4.10 Temperature-actuated mixing valvesTemperature-actuated mixing valves shall comply with the performance requirements of ASSE 1017.4.11 Backflow preventionFittings shall be designed to protect the p

    36、otable water supply from contamination due to backflow by a means that complies with the applicable requirements of Clause 5.9.Diverting and anti-siphoning devices incorporated into a fitting shall be removable for cleaning, repair, and replacement.4.12 Automatic compensating valves and temperature-

    37、limiting devices4.12.1 Automatic compensating valvesAutomatic compensating valves (other than those for individual wall-mounted showering systems, which are covered in ASME A112.18.1/CSA B125.1 by ASSE 1016/ASME A112.1016/CSA B125.16) shall be equipped with a means that limits (sets) the maximum tem

    38、perature of the valve and shall comply with this Standard.4.12.2 Automatic temperature-limiting devicesNote: Automatic temperature-limiting devices are intended to reduce the risk of scalding and are not intended to protect against thermal shock. These devices can be separate from or integral with p

    39、lumbing supply fittings.4.12.2.1In addition to the requirements specified in Clauses 4.12.2.2, 4.12.2.3, and 5.7.6, automatic temperature limiting devices shall comply with all other applicable requirements of this Standard.4.12.2.2Automatic temperature-limiting devices shall be provided with a(a)fi

    40、xed (non-adjustable) temperature setting; or(b) temperature setting that can be 2012 CSA Group Plumbing fittingsDecember 2012 7(i) adjusted and locked in position; or(ii) protected, by use of a tool, against user access.4.12.2.3Automatic temperature-limiting devices shall be provided with check valv

    41、es or other means of preventing cross-flow that comply with Clause 5.3.3.4.13 Cover plates and escutcheonsCover plates and escutcheons for concealed and deck-mounted supply fittings shall have dimensions that allow them to conceal a circular area with a diameter of not less than 44 mm (1.73 in).4.14

    42、 MaterialsCoupling nuts and locknuts shall be made from(a)copper alloys with 56% minimum copper content;(b) stainless steel alloys of the 300 or 400 series;(c) plastics; or(d) materials that comply with Clause 5.11 of ASME A112.18.1/CSA B125.1.4.15 Toxicity and lead content4.15.1Fittings covered by

    43、this Standard shall comply with the applicable requirements of NSF/ANSI 61.4.15.2Solders and fluxes in contact with potable water shall not exceed, by mass, 0.2% lead content. Metal alloys in contact with potable water shall not exceed 8% lead content.4.15.3Fittings intended to convey or dispense wa

    44、ter for human consumption through drinking or cooking shall not contain a weighted average lead content in excess of 0.25% when evaluated in accordance with the test method in NSF/ANSI 372.4.16 Trap primers4.16.1Trap primers should activate between 140 kPa and 860 kPa (20 psi and 125 psi).4.16.2Conn

    45、ections leading into and out of a trap primer shall be at least NPS-1/2.4.16.3In response to flow or pressure changes in the supply line, a trap primer shall provide intermittent discharge of water through its secondary outlet to a trap. See Figure1.4.16.4A trap primer shall prevent back siphonage t

    46、hrough its secondary outlet in accordance with Clause 5.9.3.4.17 Fittings incorporating electrical featuresElectrical power to fittings incorporating electric features shall be supplied in accordance with Clause 4.13 of ASME A112.18.1/CSA B125.1.B125.3-12 2012 CSA Group8 December 20124.18 Dimensions

    47、4.18.1 Anti-siphon fill valves4.18.1.1 DimensionsThe dimensions of the shank on a anti-siphon fill valve shall be as shown in Figure2.4.18.1.2 Bowl refill tubeThe bowl refill tube, when supplied, shall be sufficiently rigid to maintain its installed position. If a clamping device is used, it shall n

    48、ot obstruct a cross-sectional area of the tank overflow tube of more than 20 mm2(0.031 in2).4.19 Cross-flowFittings that have integral flow control devices downstream of the primary shut-off valves that completely shut off the flow of water shall have check valves installed in the fitting to prevent

    49、 cross-flow. These check valves shall comply with Clause 5.3.3.4.20 Push-fit fittingsConnections achieved by push-fit fittings shall comply with ASSE 1061.5 Performance requirements and test procedures5.1 General5.1.1 PreconditioningBefore testing, specimens shall be conditioned at ambient laboratory conditions for at least 12 h.5.1.2 Installation for testingFor test purposes, specimens shall be installe


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