{"id":522723,"date":"2024-11-05T15:09:23","date_gmt":"2024-11-05T15:09:23","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/csa-ansi-3-2119\/"},"modified":"2024-11-05T15:09:23","modified_gmt":"2024-11-05T15:09:23","slug":"csa-ansi-3-2119","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/csa\/csa-ansi-3-2119\/","title":{"rendered":"CSA\/ANSI 3.21:19"},"content":{"rendered":"

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

<\/p>\n

This is the first edition of CSA\/ANSI 3.21, Industrial gas-fired natural draft heaters for installation in non- hazardous and hazardous locations in oil and gas process applications.<\/p>\n

<\/p>\n

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.<\/p>\n

<\/p>\n

This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard.<\/p>\n

<\/p>\n

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

<\/p>\n

CSA\/ANSI 3.21:19, Part 1 – Industrial gas-fired natural draft heaters for installation in non-hazardous locations in oil and gas process applications<\/strong><\/p>\n

<\/p>\n

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

<\/p>\n

1.1<\/p>\n

CSA\/ANSI 3.21, Industrial gas-fired natural draft heaters for installation in non-hazardous and hazardous locations in oil and gas process applications, is arranged in two parts:<\/p>\n

<\/p>\n

a) CSA\/ANSI 3.21, Part 1, covers industrial gas-fired natural draft heaters for installation in non- hazardous locations in oil and gas process applications; and<\/p>\n

<\/p>\n

b) CSA\/ANSI 3.21, Part 2, covers industrial gas-fired natural draft heaters for installation in hazardous locations in oil and gas process applications.<\/p>\n

<\/p>\n

1.2<\/p>\n

This Standard (Part 1) applies to newly produced industrial gas-fired natural draft heaters (see Clause 3, Definitions) utilizing new and unused parts and materials intended for indoor and outdoor installation in non-hazardous locations in oil and gas process applications with a maximum input rating up to 12 500 000 Btu\/h (3750 kW).<\/p>\n

<\/p>\n

1.3<\/p>\n

The term heater when used herein applies to gas-fired industrial natural draft heaters. Examples could include but are not limited to a fire tube heater, process heater, line heater, or tank heater (see Clause 3, Definitions).<\/p>\n

<\/p>\n

1.4<\/p>\n

A heater may be factory-built as a single heater or as a packaged system (see Clause 3, Definitions) intended to be disassembled for shipping and reassembled for installation.<\/p>\n

<\/p>\n

1.5<\/p>\n

The term gas when used herein applies equally to the following gases:<\/p>\n

<\/p>\n

a) natural gas; and<\/p>\n

<\/p>\n

b) propane.<\/p>\n

<\/p>\n

Heaters may be convertible for use with natural gas and propane, when provision is made for the conversion from one gas to the other.<\/p>\n

<\/p>\n

1.6<\/p>\n

This Standard does not apply to:<\/p>\n

<\/p>\n

a) a heater whose primary use is to provide direct comfort space heating;<\/p>\n

<\/p>\n

b) a heater used or installed in a space where people may sleep or may be located in or near an area that has sleep accommodation; or<\/p>\n

<\/p>\n

c) residential or commercial equipment.<\/p>\n

<\/p>\n

1.7<\/p>\n

All references to psi (kPa) throughout this Standard are to be considered gauge pressures unless otherwise specified.<\/p>\n

<\/p>\n

1.8<\/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 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.<\/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

1.9<\/p>\n

Clause 2, Reference Publications, lists those publications identified in this Standard and the organization responsible for its development.<\/p>\n

<\/p>\n

1.10<\/p>\n

Clause 3, Definitions, provides definitions of words and terms that are specific to this Standard.<\/p>\n

<\/p>\n

1.11<\/p>\n

Clause 4, Construction, and Clause 5, Performance, are applicable to heaters that fall under the Scope of this Standard.<\/p>\n

<\/p>\n

1.12<\/p>\n

Clause 6, Items Unique to Canada, contains provisions that are unique to Canada.<\/p>\n

<\/p>\n

1.13<\/p>\n

Clause 7, Items Unique to the United States, contains provisions that are unique to the United States.<\/p>\n

<\/p>\n

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

<\/p>\n

CSA\/ANSI 3.21:19, Part 2 – Industrial gas-fired natural draft heaters for installation in hazardous locations in oil and gas process applications<\/strong><\/p>\n

<\/p>\n

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

<\/p>\n

1.1<\/p>\n

The requirements of this Standard (Part 2) apply only to heaters produced in accordance with CSA\/ANSI 3.21, Part 1, and intended for use in Zone 2 [Class I, Div 2] Hazardous Locations.<\/p>\n

<\/p>\n

1.2<\/p>\n

Clause 2 lists those publications identified in this Standard and the organization responsible for its development.<\/p>\n

<\/p>\n

1.3<\/p>\n

Clause 3 provides definitions of words and terms that are specific to this Standard.<\/p>\n

<\/p>\n

1.4<\/p>\n

Clause 4 and Clause 5 are applicable to heaters that fall under the Scope of this Standard.<\/p>\n

<\/p>\n

1.5<\/p>\n

Clause 6 contains provisions that are unique to Canada.<\/p>\n

<\/p>\n

1.6<\/p>\n

Clause 7 contains provisions that are unique to the United States.<\/p>\n","protected":false},"excerpt":{"rendered":"

Industrial gas-fired natural draft heaters for installation in non-hazardous and hazardous locations in oil and gas process applications<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
CSA<\/b><\/a><\/td>\n2019-03-01<\/td>\n189<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":522735,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[436,2674],"product_tag":[],"class_list":{"0":"post-522723","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-25-180-20","7":"product_cat-csa","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/522723","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\/522735"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=522723"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=522723"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=522723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}