This standard describes bolted sleeve-type couplings, reducing or transition couplings, and flanged coupling adapters (couplings) used to join plain-end pipe. Couplings may be manufactured from carbon steel, stainless steel, or ductile iron and are intended for use in systems conveying water. This standard describes nominal coupling sizes 1\/2 in. (13 mm) and larger. The purpose of this standard is to provide the minimum requirements for couplings of plain-end pipe, including requirements for materials, design, testing and inspection, installation, and shipping. This standard can be referenced in documents for purchasing the described couplings. The stipulations of this standard apply when this document has been referenced.<\/p>\n
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| 9<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003This standard describes bolted sleeve-type couplings, reducing or transition couplings, and flanged coupling adapters used to join plain-end pipe. It also includes materials of construction, inspection, and testing. I.B.\tHistory.\u2003The first edition of ANSI\/AWWA C219 was approved by the AWWA Board of Directors on June 23, 1991. Subsequent editions were approved on June 15, 1997, Jan. 21, 2001, Feb.\u00a012, 2006, Jan. 23, 2011, and Jan. 14, 2017. This edition was approved o I.C.\tAcceptance.\u2003In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | II.\tSpecial Issues. II.A.\tAdvisory Information on Product Application.\u2003Bolted sleeve-type couplings have been used for joining plain-end pipe since the latter part of the nineteenth century. Currently, there are several manufacturers that produce these couplings. Though deta II.B.\tChlorine and Chloramine Degradation of Elastomers.\u2003The selection of materials is critical for water service and distribution piping in locations where there is a possibility that elastomers will be in contact with chlorine or chloramines. Documented <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | II.C.\tGasket Degradation Study.\u2003A pipe gasket, having the hardness of a compressed elastomer with a large mass relative to the small, exposed surface area, experiences minimal degradation. This was validated in a research paper reported in the Journal AWW III.\tUse of This Standard.\u2003It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. III.A.\tPurchaser Options and Alternatives.\u2003The following items should be provided by the purchaser <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | III.B.\tModification to Standard.\u2003Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. IV.\tMajor Revisions.\u2003Major revisions made to the standard in this edition include the following: <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | V.\tComments.\u2003If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standards@awwa.org. <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | AWWA Standard SECTION 1:\tGENERAL Sec. 1.1\tScope Sec. 1.2\tPurpose Sec. 1.3\tApplication <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | SECTION 2:\tREFERENCES <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | SECTION 3:\tDEFINITIONS <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA C219-23 Bolted Sleeve-Type Couplings for Plain-End Pipe<\/b><\/p>\n |