Update No. 2 was published as notification that this is now a National Standard of Canada

This PDF inlcudes Updates No. 1, 2, 3 and 4

Preface

This is the first edition of CSA B125.3, Plumbing fittings. Together with ASME A112.18.1-2005/CSA B125.1-05, Plumbing supply fittings, and ASME A112.18.2-2005/CSA B125.2-05, Plumbing waste fittings, this Standard replaces CSA B125-01, Plumbing fittings. It covers devices, e.g., automatic compensating valves and anti-siphon fill valves, that were previously covered by CSA B125 but are not covered by ASME A112.18.1/CSA B125.1 or ASME A112.18.2/CSA B125.2. The design requirements of this Standard are generally similar to those of CSA B125.

1 Scope

1.1 This Standard applies to plumbing fittings such as the following:
(a) anti-siphon fill valves;
(b) automatic compensating valves other than those for individual wall-mounted showering systems;
(c) closet and urinal spuds;
(d) flexible connectors;
(e) flush valves;
(f) temperature-actuated in-line mixing valves;
(g) flushometer valves and solenoid valves;
(h) supply line stops;
(i) thermal expansion relief valves; and
(j) trap primers.

Note: See Clauses 1.2 and 1.3 for plumbing fittings not covered by this Standard.

1.2 This Standard does not apply to plumbing supply fittings and accessories covered by ASME A112.18.1/CSA B125.1, as follows: (a) automatic compensating valves 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 and sediment faucets;
(j) metering and self-closing supply fittings; and
(k) supply stops.

1.3 This Standard does not apply to plumbing waste fittings NPS-2 and smaller, which are covered by ASME A112.18.2/CSA B125.2.

1.4 This Standard does not apply to pipes and tubes or pipe and tube fittings.

1.5 In CSA Standards, "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. Legends to equations and figures are considered requirements.

1.6 The values given in SI (metric) units are the standard. The values given in parentheses are for information only. All references to gallons are to US gallons. For information on the conversion criteria used in this Standard, see Annex A.