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CSA B602:20

Current Revision

Mechanical couplings for drain, waste, and vent pipe and sewer pipe

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Mechanical couplings for drain, waste, and vent pipe and sewer pipe

Preface

This is the seventh edition of CSA B602, Mechanical couplings for drain, waste, and vent pipe and sewer pipe . It supersedes the previous editions published in 2016, 2010, 2005, 1999, 1990, and 1988. The major changes in this new edition are

  1. revision to Clause 5.2.1 for chemical composition requirements
  2. clarification of the required test pressure for size-transition couplings in Clause 6.1.3
  3. addition of 350, 400 ,and 450 mm Type 1 Couplings to Tables 2 and 3
  4. removal of Figure A.1 from Annex A
  5. and addition of Clause A.3 to Annex A.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group

Scope
1.1

This Standard covers mechanical couplings that are used to axially join pipes and fittings in non-pressure drain, waste, and vent (DWV) piping systems and sewer piping systems located inside or outside buildings and above ground or underground.

Notes:

  1. Caution should be exercised when installing mechanical couplings at low temperatures. The coupling manufacturer should be consulted
  2. Caution should also be exercised when installing mechanical couplings at the base of stacks, at cleanouts, or at offsets in a piping system (see Annex A)
1.2

This Standard specifies requirements for mechanical couplings of the following types

  1. Type 1: couplings that are used to join pipes of the same or different materials or sizes and that incorporate a centre stop and an external shield. b) Type 2: couplings that are used to join pipes of the same or different materials or sizes, but for which a centre stop and/or shear ring are allowed but not required. c) Type 3: couplings used to join hubless cast iron pipe and fittings. Such couplings are composed of a stainless steel shield, a clamp assembly, and an elastomeric sealing component that complies with ASTM C564. d) Type 4: elastomeric bellows expansion joint couplings used to join pipe of the same or different materials or sizes incorporating pipe stops. Note: Pipe and pipe-fitting materials that may be joined include a) fibrocement (CSA B127.3)
  2. cast iron (CSA B70)
  3. concrete (CSA A257 Series and ASTM C14)
  4. copper (ASTM B306)
  5. acrylonitrile-butadiene-styrene (ABS) (CSA B181.1, CSA B182.1, ASTM D2661, and ASTM F628)
  6. polyvinylchloride (PVC) (CSA B181.2, CSA B182.1, CSA B182.2, ASTM D2665, and ASTM F891)
  7. galvanized steel (ASTM A53/A53M)
  8. and vitrified clay (ASTM C700)
1.3

This Standard does not cover the joining of pipes and fittings with bell and spigot ends that use an elastomeric gasket seal.

1.4

Users should note the existence of other standards developed for different types of couplings or coupling materials, e.g., ASTM C1173, ASTM C1277, ASTM C1440, ASTM C1460, ASTM C1461, ASTM C1540, and ASTM D5926.

1.5

In 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" 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 tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.6

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
SDO CSA: Canadian Standards Association
Document Number
Publication Date Jan. 1, 2020
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2020 CSA B602:20 Revision