{"id":1010,"date":"2026-04-17T23:31:30","date_gmt":"2026-04-18T03:31:30","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=1010"},"modified":"2026-04-17T23:43:41","modified_gmt":"2026-04-18T03:43:41","slug":"lap-joint-flange-stub-end-assembly-easy-alignment-piping-systems","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/it\/2026\/04\/17\/lap-joint-flange-stub-end-assembly-easy-alignment-piping-systems\/","title":{"rendered":"Giunto a labbro Flangia con terminale a mozzo Allineamento facile Sistemi di tubazioni"},"content":{"rendered":"<h2>Understanding Lap Joint Flanges<\/h2>\n<p>A Lap Joint Flange consists of two components: a stub end and a backing flange. The stub end is butt-welded to the pipe, while the backing flange rotates freely around it, allowing for easy bolt hole alignment during assembly.<\/p>\n<h3>Design Features<\/h3>\n<ul>\n<li>Two-piece construction: stub end + backing flange<\/li>\n<li>Backing flange rotates freely for bolt alignment<\/li>\n<li>Stub end provides pressure containment<\/li>\n<li>Available in various materials and finishes<\/li>\n<\/ul>\n<h3>Key Advantages<\/h3>\n<ol>\n<li><strong>Easy Alignment:<\/strong> Rotating flange simplifies bolt hole matching<\/li>\n<li><strong>Cost Savings:<\/strong> Backing flange can be lower-grade material<\/li>\n<li><strong>Quick Disassembly:<\/strong> Ideal for systems requiring frequent maintenance<\/li>\n<li><strong>Reduced Installation Time:<\/strong> No need to rotate pipe for alignment<\/li>\n<li><strong>Versatilit\u00e0:<\/strong> Compatible with various stub end materials<\/li>\n<\/ol>\n<h3>Typical Applications<\/h3>\n<ul>\n<li>Low-pressure piping systems<\/li>\n<li>Sistemi che richiedono uno smontaggio frequente<\/li>\n<li>Large diameter piping where alignment is challenging<\/li>\n<li>Water treatment and distribution systems<\/li>\n<li>HVAC and fire protection systems<\/li>\n<li>Process piping with expansion joints<\/li>\n<\/ul>\n<h3>Material Combinations<\/h3>\n<table>\n<tr>\n<th>Component<\/th>\n<th>Material Options<\/th>\n<\/tr>\n<tr>\n<td>Stub End<\/td>\n<td>304\/316 Stainless, Carbon Steel, Duplex<\/td>\n<\/tr>\n<tr>\n<td>Backing Flange<\/td>\n<td>Carbon Steel (cost-effective option)<\/td>\n<\/tr>\n<\/table>\n<h3>Standards<\/h3>\n<ul>\n<li>ASME B16.5: Class 150-2500<\/li>\n<li>EN 1092-1: PN6-PN100<\/li>\n<li>GB\/T 9115: Chinese lap joint flange standard<\/li>\n<\/ul>\n<h3>Installation Tips<\/h3>\n<ol>\n<li>Ensure stub end is properly welded to pipe<\/li>\n<li>Verify backing flange rotates freely<\/li>\n<li>Check gasket seating surface is clean<\/li>\n<li>Tighten bolts in cross pattern<\/li>\n<\/ol>\n<p>Lap joint flanges offer an economical and practical solution for piping systems requiring frequent maintenance or where precise bolt alignment is challenging.<\/p>\n<p><strong>WhatsApp:<\/strong>\u00a0+86-18658777855<br \/>\n<strong>E-mail:<\/strong>\u00a01007788887@qq.com<br \/>\n<a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-884\" src=\"http:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp\" alt=\"\" width=\"1290\" height=\"2317\" srcset=\"https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp 1290w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-167x300.webp 167w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-570x1024.webp 570w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-768x1379.webp 768w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-855x1536.webp 855w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-1140x2048.webp 1140w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-7x12.webp 7w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-416x747.webp 416w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Informazioni sulle flange a giunto circolare Una flangia a giunto circolare \u00e8 costituita da due componenti: un'estremit\u00e0 e una flangia di supporto. L'estremit\u00e0 del raccordo \u00e8 saldata al tubo, mentre la flangia di supporto ruota liberamente intorno ad esso, consentendo un facile allineamento dei fori dei bulloni durante l'assemblaggio. Caratteristiche di progettazione Costruzione in due pezzi: estremit\u00e0 del raccordo + flangia di supporto La flangia di supporto ruota [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[71,66,103,70],"class_list":["post-1010","post","type-post","status-publish","format-standard","hentry","category-blog","tag-facing","tag-flange","tag-lapjoint","tag-standard"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts\/1010","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=1010"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts\/1010\/revisions"}],"predecessor-version":[{"id":1021,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/posts\/1010\/revisions\/1021"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/media?parent=1010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/categories?post=1010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/it\/wp-json\/wp\/v2\/tags?post=1010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}