{"id":1024,"date":"2026-04-20T22:33:58","date_gmt":"2026-04-21T02:33:58","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=1024"},"modified":"2026-04-20T22:35:51","modified_gmt":"2026-04-21T02:35:51","slug":"asme-b16-5-vs-b16-47-choosing-the-right-flange-standard-for-your-project","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/it\/2026\/04\/20\/asme-b16-5-vs-b16-47-choosing-the-right-flange-standard-for-your-project\/","title":{"rendered":"ASME B16.5 vs B16.47 Choosing the Right Flange Standard for Your Project"},"content":{"rendered":"<h2>Understanding ASME Flange Standards<\/h2>\n<p>When selecting flanges for piping systems, engineers often face the decision between ASME B16.5 and B16.47 standards. Understanding the key differences ensures proper specification and cost-effective design.<\/p>\n<h3>ASME B16.5 Overview<\/h3>\n<ul>\n<li><strong>Size Range:<\/strong> NPS 1\/2 to NPS 24<\/li>\n<li><strong>Pressure Classes:<\/strong> 150, 300, 600, 900, 1500, 2500<\/li>\n<li><strong>Applicazioni:<\/strong> General process piping, refineries, chemical plants<\/li>\n<li><strong>Flange Types:<\/strong> Weld neck, slip-on, blind, socket weld, threaded, lap joint<\/li>\n<\/ul>\n<h3>ASME B16.47 Overview<\/h3>\n<ul>\n<li><strong>Size Range:<\/strong> NPS 26 to NPS 60<\/li>\n<li><strong>Series:<\/strong> Serie A (MSS SP-44) e Serie B (API 605)<\/li>\n<li><strong>Pressure Classes:<\/strong> 150, 300, 400, 600, 900<\/li>\n<li><strong>Applicazioni:<\/strong> Large diameter pipelines, water transmission, oil and gas trunk lines<\/li>\n<\/ul>\n<h3>Key Differences<\/h3>\n<table>\n<tr>\n<th>Feature<\/th>\n<th>B16.5<\/th>\n<th>B16.47<\/th>\n<\/tr>\n<tr>\n<td>Size Range<\/td>\n<td>Up to 24 inch<\/td>\n<td>26 to 60 inch<\/td>\n<\/tr>\n<tr>\n<td>Bolt Hole Count<\/td>\n<td>Standard pattern<\/td>\n<td>More bolts for larger sizes<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Lighter<\/td>\n<td>Heavier, reinforced design<\/td>\n<\/tr>\n<tr>\n<td>Cost<\/td>\n<td>Lower<\/td>\n<td>Higher due to size<\/td>\n<\/tr>\n<\/table>\n<h3>When to Use B16.5<\/h3>\n<ul>\n<li>Process piping within refineries and chemical plants<\/li>\n<li>High-pressure applications requiring Class 1500 or 2500<\/li>\n<li>Standard industrial applications up to 24 inches<\/li>\n<li>Systems requiring\u591a\u79cd flange types<\/li>\n<\/ul>\n<h3>When to Use B16.47<\/h3>\n<ul>\n<li>Large diameter water transmission lines<\/li>\n<li>Oil and gas trunk pipelines<\/li>\n<li>Pump discharge and suction nozzles over 24 inches<\/li>\n<li>Low-pressure, high-volume applications<\/li>\n<\/ul>\n<h3>Selection Considerations<\/h3>\n<ol>\n<li>Pipe size and pressure requirements<\/li>\n<li>System design codes (ASME B31.1, B31.3, B31.4, B31.8)<\/li>\n<li>Cost implications for large diameter systems<\/li>\n<li>Availability and lead time<\/li>\n<li>Interchangeability with existing systems<\/li>\n<\/ol>\n<p>Choosing the correct standard ensures system integrity, regulatory compliance, and optimal project economics.<\/p>","protected":false},"excerpt":{"rendered":"<p>Understanding ASME Flange Standards When selecting flanges for piping systems, engineers often face the decision between ASME B16.5 and B16.47 standards. Understanding the key differences ensures proper specification and cost-effective design. ASME B16.5 Overview Size Range: NPS 1\/2 to NPS 24 Pressure Classes: 150, 300, 600, 900, 1500, 2500 Applications: General process piping, refineries, chemical [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[81,82,66,70],"class_list":["post-1024","post","type-post","status-publish","format-standard","hentry","category-blog","tag-ansi","tag-asme","tag-flange","tag-standard"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts\/1024","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/comments?post=1024"}],"version-history":[{"count":1,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts\/1024\/revisions"}],"predecessor-version":[{"id":1025,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts\/1024\/revisions\/1025"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/media?parent=1024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/categories?post=1024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/tags?post=1024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}