{"id":517737,"date":"2024-11-05T14:46:44","date_gmt":"2024-11-05T14:46:44","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/csa-b64-series21\/"},"modified":"2024-11-05T14:46:44","modified_gmt":"2024-11-05T14:46:44","slug":"csa-b64-series21","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/csa\/csa-b64-series21\/","title":{"rendered":"CSA B64 SERIES:21"},"content":{"rendered":"

Preface<\/strong><\/p>\n

<\/p>\n

This is the seventh edition of the CSA B64 Series, Backflow preventers and vacuum breakers.<\/em> It supersedes the previous editions, published in 2011, 2007, 2001, 1994, 1988, and 1976.<\/p>\n

<\/p>\n

This edition consists of the following Standards:<\/p>\n

<\/p>\n

\u2022 CSA B64.0, Definitions, general requirements, and test methods for vacuum breakers and backflow preventers;<\/p>\n

<\/p>\n

\u2022 CSA B64.1.1, Atmospheric vacuum breakers (AVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.1.2, Pressure vacuum breakers (PVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.1.3, Spill-resistant pressure vacuum breakers (SRPVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.1.4, Vacuum breaker, air space type (ASVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.2, Hose connection vacuum breakers (HCVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.2.1, Hose connection vacuum breakers (HCVB) with manual draining feature;<\/p>\n

<\/p>\n

\u2022 CSA B64.2.1.1, Hose connection dual check vacuum breakers (HCDVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.2.2, Hose connection vacuum breakers (HCVB) with automatic draining feature;<\/p>\n

<\/p>\n

\u2022 CSA B64.3, Dual check valve backflow preventers with atmospheric port (DCAP);<\/p>\n

<\/p>\n

\u2022 CSA B64.3.1, Dual check valve backflow preventers with atmospheric port for carbonators (DCAPC);<\/p>\n

<\/p>\n

\u2022 CSA B64.4, Reduced pressure principle (RP) backflow preventers;<\/p>\n

<\/p>\n

\u2022 CSA B64.4.1, Reduced pressure principle backflow preventers for fire protection systems (RPF);<\/p>\n

<\/p>\n

\u2022 CSA B64.5, Double check valve (DCVA) backflow preventers;<\/p>\n

<\/p>\n

\u2022 CSA B64.5.1, Double check valve backflow preventers for fire protection systems (DCVAF);<\/p>\n

<\/p>\n

\u2022 CSA B64.6, Dual check valve (DuC) backflow preventers;<\/p>\n

<\/p>\n

\u2022 CSA B64.6.1, Dual check valve backflow preventers for fire protection systems (DuCF);<\/p>\n

<\/p>\n

\u2022 CSA B64.7, Laboratory faucet vacuum breakers (LFVB);<\/p>\n

<\/p>\n

\u2022 CSA B64.8, Dual check valve backflow preventers with intermediate vent (DuCV); and<\/p>\n

<\/p>\n

\u2022 CSA B64.9, Single check valve backflow preventers for fire protection systems (SCVAF).<\/p>\n

<\/p>\n

The major changes in this new edition are the following:<\/p>\n

<\/p>\n

\u2022 addition of lead requirement in CSA B64.0;<\/p>\n

<\/p>\n

\u2022 addition of test cock thread requirements to CSA B64.0;<\/p>\n

<\/p>\n

\u2022 addition of test cock waterway requirement to CSA B64.0;<\/p>\n

<\/p>\n

\u2022 removal of the dimensional requirement for support structures in CSA B64.1.4;<\/p>\n

<\/p>\n

\u2022 removal of note from Figure 1 in CSA B64.1.4; and<\/p>\n

<\/p>\n

\u2022 addition of note to Figure 2 in CSA B64.1.4.<\/p>\n

<\/p>\n

These Standards have been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. They have been published as National Standards of Canada by CSA Group.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.0:21 – Definitions, general requirements, and test methods for vacuum breakers and backflow preventers<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

The CSA B64 Series covers vacuum breakers and backflow preventers that are used in potable water supply systems to prevent cross-connections.<\/p>\n

<\/p>\n

1.2<\/p>\n

This Standard specifies definitions, general requirements, test methods, markings, and instructions that are common to some or all of the Standards in the CSA B64 Series.<\/p>\n

<\/p>\n

1.3<\/p>\n

This Standard is not a complete Standard in itself and is intended to be used in conjunction with one of the Standards in the CSA B64 Series to form a complete Standard for a particular type of vacuum breaker or backflow preventer.<\/p>\n

<\/p>\n

1.4<\/p>\n

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 each Standard in the Series; 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 Standards in the Series.<\/p>\n

<\/p>\n

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.<\/p>\n

<\/p>\n

Notes to tables and figures are considered part of the table or figure and may be written as requirements.<\/p>\n

<\/p>\n

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.<\/p>\n

<\/p>\n

1.5<\/p>\n

This Standard is written in SI units, which are the units of record for the purposes of this Standard.<\/p>\n

<\/p>\n

For conversion tables, see Annex A. Vacuum is expressed in pressure below ambient. All pipe sizes are shown as nominal pipe sizes (NPS).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.1.1:21 – Atmospheric vacuum breakers (AVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers atmospheric vacuum breakers (AVB).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.1.2:21 – Pressure vacuum breakers (PVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers pressure vacuum breakers (PVB).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.1.3:21 – Spill-resistant pressure vacuum breakers (SRPVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers spill-resistant pressure vacuum breakers (SRPVB).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.1.4:21 – Vacuum breaker, air space type (ASVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers manufactured vacuum breakers, air space type (ASVB).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.2:21 – Hose connection vacuum breakers (HCVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers hose connection vacuum breakers (HCVB).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.2.1:21 -Hose connection vacuum breakers (HCVB) with manual draining feature<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers hose connection vacuum breakers (HCVB) that incorporate a draining feature that requires manual operation.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.2.1.1:21 -Hose connection dual check vacuum breakers (HCDVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers hose connection vacuum breakers that have two check valves (HCDVB) and that incorporate a draining feature that requires manual operation. The second (downstream) check valve is field-testable.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.2.2:21 – Hose connection vacuum breakers (HCVB) with automatic draining feature<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers hose connection vacuum breakers (HCVB) that incorporate an automatic draining feature that does not require manual operation.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.3:21 – Dual check valve backflow preventers with atmospheric port (DCAP)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers dual check valve backflow preventers with an atmospheric port (DCAP).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.3.1:21 – Dual check valve backflow preventers with atmospheric port for carbonators (DCAPC)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers dual check valve backflow preventers with an atmospheric port for carbonators (DCAPC).<\/p>\n

<\/p>\n

——————————————————————————————————————————-<\/p>\n

<\/p>\n

CSA B64.4:21 – Reduced pressure principle (RP) backflow preventers<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers reduced pressure principle (RP) backflow preventers.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.4.1:21 – Reduced pressure principle backflow preventers for fire protection systems (RPF)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers reduced pressure principle backflow preventers specifically designed for use in fire protection systems (RPF).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.5:21 – Double check valve (DCVA) backflow preventers<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers double check valve (DCVA) backflow preventers.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.5.1:21 – Double check valve backflow preventers for fire protection systems (DCVAF)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers double check valve backflow preventers specifically designed for use in fire protection systems (DCVAF).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.6:21 – Dual check valve (DuC) backflow preventers<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers dual check valve (DuC) backflow preventers.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.6.1:21 – Dual check valve backflow preventers for fire protection systems (DuCF)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers dual check valve backflow preventers designed for use in fire protection systems (DuCF).<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.7:21 – Laboratory faucet vacuum breakers (LFVB)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers vacuum breakers for use on laboratory faucets.<\/p>\n

<\/p>\n

——————————————————————————————————————————–<\/p>\n

<\/p>\n

CSA B64.8:21 – Dual check valve backflow preventers with intermediate vent (DuCV)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers dual check valve backflow preventers with an intermediate vent (DuCV).<\/p>\n

<\/p>\n

Note: These devices are designed to be used on individual outlets or appliances with flow rates of 0.25 L\/s or less.<\/p>\n

<\/p>\n

——————————————————————————————————————————-<\/p>\n

<\/p>\n

CSA B64.9:21 – Single check valve backflow preventers for fire protection systems (SCVAF)<\/strong><\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard covers single check valve backflow preventers specifically designed for use in fire protection systems (SCVAF).<\/p>\n","protected":false},"excerpt":{"rendered":"

Backflow preventers and vacuum breakers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
CSA<\/b><\/a><\/td>\n2021<\/td>\n139<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":517745,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2674],"product_tag":[],"class_list":{"0":"post-517737","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-csa","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/517737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/517745"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=517737"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=517737"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=517737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}