1、 2015UNIFORMPLUMBINGCODEan american national standardIAPMO/ANSI UPC 1 2015Copyright 2015 International Association of Plumbing and Mechanical Ofcials All Rights ReservedNo part of this work may be reproduced or recorded in any form or by any means, except as may be expressly permitted in writing by
2、the publisher.Twenty-Seventh Edition First Printing, January 2015Second Printing, January 2016ISSN 0733-2335Published by the International Association of Plumbing and Mechanical Ofcials4755 E. Philadelphia Street Ontario, CA 91761-2816 USA Main Phone: (909) 472-4100 Main Fax: (909) 472-4150Important
3、 Notices and DisclaimersThe 2015 edition of the Uniform Plumbing Code is developed through a consensusstandards development process approved by the American National Standards Institute.This process brings together volunteers representing varied viewpoints and interests toachieve consensus on plumbi
4、ng issues. While the International Association of Plumbingand Mechanical Officials (IAPMO) administers the process and establishes rules to promotefairness in the development of consensus, it does not independently test, evaluate, or verifythe accuracy of any information or the soundness of any judg
5、ments contained in its codesand standards.IAPMO disclaims liability for any personal injury, property, or other damages of any naturewhatsoever, whether special, indirect, consequential, or compensatory, directly or indirectlyresulting from the publication, use of, or reliance on this document. IAPM
6、O also makes noguarantee or warranty as to the accuracy or completeness of any information publishedherein.In issuing and making this document available, IAPMO is not undertaking to renderprofessional or other services for or on behalf of any person or entity. Nor is IAPMOundertaking to perform any
7、duty owed by any person or entity to someone else. Anyoneusing this document should rely on his or her own independent judgment or, as appropriate,seek the advice of a competent professional in determining the exercise of reasonablecare in any given circumstances.Updating IAPMO CodesUsers of IAPMO c
8、odes should be aware that IAPMO codes may be amended from time totime through the issuance of Tentative Interim Amendments or corrected by Errata. IAPMOcodes consist of the current edition of the document together with any Tentative InterimAmendment and any Errata in effect.In order to determine whe
9、ther an IAPMO code has been amended through the issuanceof Tentative Interim Amendments or corrected by Errata, please visit the IAPMO Groupcodes information pages on IAPMOs website (www.iapmo.org). The codes informationpages provide a list of IAPMO codes with up-to-date, specific information includ
10、ing anyissued Tentative Interim Amendments and Errata.To access the codes information pages for a specific code, go to http:/codes.iapmo.org toselect from the list of IAPMO codes. For Tentative Interim Amendments, go to the standardcouncil decisions. For Errata, select the archived revision informat
11、ion.iiiOrigin and DevelopmentThe advantages of a statewide adopted Uniform Plumbing Code are recognizedthroughout the industry. Disorder in the industry because of widely divergent plumbingpractices and the use of many different, often conflicting, plumbing codes by localjurisdictions influenced the
12、 Western Plumbing Officials Association (now the InternationalAssociation of Plumbing and Mechanical Officials IAPMO) to form a committee. Thiscommittee of plumbing inspectors, master and journeyman plumbers, and plumbingengineers, backed by public utility companies and the plumbing industry to crea
13、te abasic plumbing document for general use. The product of this effort, the first edition ofthe Uniform Plumbing Code(UPC) was adopted by IAPMO in 1945. The widespreaduse of this code over the past seven decades by jurisdictions throughout the UnitedStates and internationally is testament to its me
14、rit.Publishing the 2003 Uniform Plumbing Code, is a significant milestone because it is thefirst time in the history of the United States, a plumbing code was developed through atrue consensus process. The 2015 edition represents the most current approaches in theplumbing field and is the fifth edit
15、ion developed under the ANSI consensus process.Contributions to the content of this code consists of diverse interests as consumers,enforcing authorities, installers/maintainers, labor, manufacturers, research/standards/testing laboratories, special experts, and users.The Uniform Plumbing Code provi
16、des consumers with safe and sanitary plumbingsystems while, at the same time, allowing latitude for innovation and new technologies.The public at large is invited and encouraged to take part in IAPMOs open consensuscode development process. This code is updated every three years. The UniformPlumbing
17、 Code is dedicated to all those who, in working to achieve “the ultimateplumbing code,” have unselfishly devoted their time, effort, and personal funds to createand maintain this, the finest plumbing code in existence today.The Uniform Plumbing Code updates every three years in revision cycles that
18、begin twiceeach year that takes two years to complete. Each revision cycle advances according to a published schedule that includes final datesfor all major events and contains four basic steps as follows:1. Public and Committee Proposal Stage;2. Comment Stage;3. Association Technical Meeting;4. Cou
19、ncil Appeals and Issuance of Code.IAPMO develops “full consensus” codes built on a foundation of maximum participation andagreement by a broad range of interests. This philosophy has led to producing technicallysound codes that promote health and safety, yet do not stifle design or development. It i
20、s important to stress that; the process remains committed to the principles of consensuscode development where consensus Technical Committees and Correlating Committeesrevise codes. The public and membership is offered multiple opportunities to debate,provide input and raise concerns through Amendin
21、g Motions at the annual AssemblyConsideration Session. Anyone may submit an appeal related to the issuance of adocument through the IAPMO Standards Council.The 2015 Uniform Plumbing Code is supported by the Mechanical Contractors Associationof America (MCAA), the Plumbing-Heating-Cooling Contractors
22、 National Association(PHCC-NA), the United Association (UA), and the World Plumbing Council (WPC). Thepresence of these logos, while reflecting support, does not imply any ownership of thecopyright to the UPC, which is held exclusively by IAPMO. Further, the logos of theseassociations indicate the s
23、upport of IAPMOs open consensus process being used todevelop IAPMOs codes and standards.ivFOREWORDThe addresses of the organizations are as follows:MCAA 1385 Piccard Drive Rockville, MD 20850 (301) 869-5800PHCC-NA PO Box 6808 Falls Church, VA 22046 (800) 533-7694UA Three Park Place Annapolis, MD 214
24、01 (410) 269-2000WPC World Plumbing Council Secretariat, 353 Shepperton Road East Victoria Park 6101 Western Australia +61 (439) 943-098AdoptionThe Uniform Plumbing Code is available for adoption and use by jurisdictions in theUnited States and Internationally. Its use within a governmental jurisdic
25、tion isaccomplished through adoption by reference in accordance with applicablejurisdictional laws. At adoption, jurisdictions should insert the applicable information inbracketed words in the sample ordinance. The sample legislation for adoption of theUniform Plumbing Code on page xii provides key
26、components, regulations andresolutions.Revision MarkingsSolid vertical lines in the margins indicate a technical change from the requirements of the2012 edition. An arrow ( ) in the margin indicates where an entire section, paragraph,exception or table has been deleted, or an item in a list of items
27、 or a table has been deleted.A double right angle () in the margin indicates that the text or a table has been relocatedwithin the code. The table found on page xiv points out the relocations in the 2015 editionof the Uniform Plumbing Code.A reference in brackets following a section or paragraph ind
28、icates material that hasbeen extracted from another document. This reprinted material is not the complete andofcial position of the source document on the referenced subject that is represented bythe standard in its entirety. Text that is extracted pursuant to IAPMOs Extract Guidelines, but outside
29、of the regularrevision process is denoted with the use of the source document in the margin. This text isnot fully processed by IAPMO in accordance with ANSIs public announcement consensusrequirements for an American National Standard (ANS) nor approved by ANSIs Board ofStandards Review. The next re
30、vision cycle processes such text in accordance with thoserequirements. vFOREWORDThe format of the Uniform Plumbing Code (UPC) arranges each chapter in accordance with aspecic subject matter. However, Chapter 3 is dedicated to general requirements that areapplicable to every chapter. The subject matt
31、ers are divided as follows:CHAPTERS SUBJECTS1 Administration2 Definitions3 General Regulations4 Plumbing Fixtures and Fixture Fittings5 Water Heaters6 Water Supply and Distribution7 Sanitary Drainage8 Indirect Wastes9 Vents10 Traps and Interceptors11 Storm Drainage12 Fuel Gas Piping13 Health Care Fa
32、cilities and Medical Gasand Medical Vacuum Systems14 Firestop Protection15 Alternate Water Sources forNonpotable Applications16 Nonpotable Rainwater CatchmentSystems17 Referenced StandardsAppendix A Recommended Rules for Sizing theWater Supply SystemAppendix B Explanatory Notes on CombinationWaste a
33、nd Vent SystemsAppendix C Alternate Plumbing SystemsAppendix D Sizing Storm Water Drainage SystemsAppendix E Manufactured/Mobile Home Parks andRecreational Vehicle ParksAppendix F Firefighter Breathing AirReplenishment SystemsAppendix G Sizing of Venting SystemsAppendix H Private Sewage Disposal Sys
34、temsAppendix I Installation StandardAppendix J Combination of Indoor and OutdoorCombustion and Ventilation OpeningDesignAppendix K Potable Rainwater Catchment SystemsAppendix L Sustainable PracticesviFORMAT OF THE UNIFORM PLUMBING CODEThe following is a summary of the scope and intent of the provisi
35、ons addressed within the chapters and appendices of theUniform Plumbing Code:Chapter 1 Administration. Chapter 1 regulates the application, enforcement, and administration of subsequent requirements of the code. As well asestablishing the scope of the code, this chapter is concerned with enforcing t
36、he requirements contained in the body of the code.A plumbing code, as with any other code, is intended to be adopted as a legally enforceable document to safeguard health,safety, property and public welfare. The code cannot be effective without satisfactory provisions for its administration andenfor
37、cement. The Authority Having Jurisdiction is to review the proposed and completed work and to decide whether a plumbingsystem conforms to the code requirements. As a public servant, the Authority Having Jurisdiction enforces the code in anunbiased, proper manner. The design professional is responsib
38、le for the design of a safe plumbing system. The contractor isresponsible for installing the system in accordance with the plans. Chapter 2 Definitions. To maintain consistency and encourage the use of common terminology, Chapter 2 establishes definitions to provide clarityof terms and promote the u
39、se of a common language throughout the code. Understanding definitions within the context oftheir application enables greater collaboration, efficiency, standardization and interpretation in applying and enforcing termsused throughout the code. Codes are technical documents, and every term can impac
40、t the meaning of the code text. Termsnot defined have a normally accepted meaning.Chapter 3 General Regulations. Chapter 3 regulates the general requirements, not specific to other chapters, for installing plumbing systems. Manyregulations are not specific plumbing requirements, but relate to the ov
41、erall plumbing system. This chapter contains safetyrequirements for installing plumbing and also contains nonplumbing requirements for identifying pipe, pipe fittings, traps,fixtures, materials and devices used in plumbing systems. Listing or labeling method of approval, based on applicablenationall
42、y recognized standards, for the safe and proper installation of plumbing systems is essential to ensure protection ofpublic health, safety, and welfare. The safety requirements provide protection for piping, material, and structures, withprovisions for installation practices, removing stress and str
43、ain of the pipe, sleeving, and hanger support. The buildingsstructural stability is protected by the regulations for cutting and notching of structural members. Chapter 4 Plumbing Fixtures and Fixture Fittings.This chapter regulates the minimum number of plumbing fixtures of a specific type and qual
44、ity for each building. The fixturesmust be properly installed to be usable by the individuals occupying the building. The quality and design of every fixturemust conform to the applicable referenced standard. Compliance with this chapter will result in a building or structure havingacceptable plumbi
45、ng fixtures for the sanitary, hygienic, cleaning, washing and food preparation needs of the occupants.Chapter 5 Water Heaters. Chapter 5 regulates the design, approval, installation, and safety devices of fuel burning and other types of water heaterswith the combustion air requirements for ventilati
46、on and dilution of flue gases for appliances installed in buildings. Thischapter does not apply to direct vent appliances. In addition, this chapter regulates the design, construction, installation,maintenance of chimneys, vents and their connections to fuel burning appliances. Methods to supply com
47、bustion air may besupplied from an indoor air supply, outdoor air supply, a combination of indoor and outdoor air supply, mechanical airsupply, or an engineered system. Combustion air provisions are based on the number of openings and the total openingsize required based on the total energy input ra
48、ting of the appliance. Acceptable air supply for combustion and ventilation isnecessary for proper operation of fuel burning appliances. A shortage of combustion air can result in incomplete combustionand production of poisonous gases, such as carbon monoxide or appliance overheating. Ventilation ai
49、r provides cooling forthe appliance casing and internal controls. Inadequate ventilation of the space in which an appliance is installed can resultin increased surrounding temperatures that stress the appliance itself or other appliances in the vicinity. Chapter 6 Water Supply and Distribution. Chapter 6 regulates the design, material and installation of water supply and distribution systems, including residential firesprinklers. The water supply and distrib
