Hot tapping is the technique of attaching a welded branch fitting to piping or equipment in service, and then creating an opening in that piping or equipment by drilling or cutting a portion of the piping or equipment within the attached fitting. (In certain specific situations a bolted or mechanical fitting may be used. This approach is not common practice in oil processing and petrochemical facilities and this document does not address any considerations unique to \u201chot tapping without welding\u201d.) Hot tapping is usually performed when it is not feasible, or is impractical, to take the equipment or piping out of service, or to purge or clean it by conventional methods. With proper review to determine that a hot tap is appropriate, and development and conformance to job-specific procedures, many hot tap connections have been safely made without interfering with the process operation. <\/p>\n
This publication covers the safety aspects to be considered before and during hot tapping on in-service piping or equipment. It provides: <\/p>\n
\u2022 aids to recognize, review, and address safety concerns; <\/p>\n
\u2022 a review of potential hot tapping concerns based on industry experience; <\/p>\n
\u2022 guidance on planning hot taps; <\/p>\n
\u2022 application of \u201chazard versus risk\u201d concepts applied to hot tapping; <\/p>\n
\u2022 elements to consider during the hot tap process from job analysis through completion; <\/p>\n
\u2022 suggestions on \u201cwhat to do if things go wrong.\u201d This publication is not: <\/p>\n
\u2022 a substitute for job-specific planning; <\/p>\n
\u2022 a set of work procedures. <\/p>\n
Virtually every hot tapping job is different. A detailed, written, job-specific hot tap procedure should be available before starting each job to help ensure that appropriate measures are addressed. If there are standing procedures for hot tapping they should be reviewed for applicability to the specific job to be done. These procedures may need revision in response to unique job specific problems or situations that may arise concerning the safety of personnel and facilities. The hot tap approach described in this publication applies to piping and equipment fabricated from ferritic and austenitic steel. Other materials, such as aluminum, copper, plastic, and cast iron may be unsuitable for hot tapping or welding or may require special procedures. <\/p>\n
Hot tapping is a \u201cchange\u201d subject to review based on facility \u201cmanagement of change\u201d processes or procedures.<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
Safe Hot Tapping Practices in the Petroleum and Petrochemical Industries<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n API<\/b><\/a><\/td>\n 2003<\/td>\n 40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":488324,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2642],"product_tag":[],"class_list":{"0":"post-488319","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-api","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\/488319","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\/488324"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=488319"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=488319"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=488319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}