{"id":13332,"date":"2026-07-30T11:08:57","date_gmt":"2026-07-30T09:08:57","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/stauff-round-u-bolt-clamp-rbd-din-3570-type-a-without-saddle\/"},"modified":"2026-08-07T10:36:58","modified_gmt":"2026-08-07T08:36:58","slug":"stauff-round-u-bolt-clamp-rbd-din-3570-type-a-without-saddle","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/stauff-round-u-bolt-clamp-rbd-din-3570-type-a-without-saddle\/","title":{"rendered":"STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A &#8211; without Saddle)"},"content":{"rendered":"<h3>Design and Operating Principle<\/h3>\n<p>The <strong>STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A &#8211; without Saddle)<\/strong> is designed to provide secure pipe installation on beams, profiles and brackets. The &#8220;Round Steel U-Bolt&#8221; configuration uses a U-shaped steel rod featuring two threaded ends. This double-threaded geometry allows an ideal fit to match the exact outside diameter of the pipe, ensuring firm retention and even distribution of the mechanical load. The standard supply includes the U-bolt and two fastening nuts compliant with DIN EN ISO 4032, supplied unassembled to facilitate installation operations on site.<\/p>\n<h3>Construction Features and Materials<\/h3>\n<p>To meet different environmental and operating requirements, the <strong>STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A &#8211; without Saddle)<\/strong> is available in three material variants (Material Code), each identified by a specific designation:<\/p>\n<ul>\n<li><strong>W1<\/strong>: Manufactured from uncoated Carbon Steel, ideal for standard applications.<\/li>\n<li><strong>W32<\/strong>: Manufactured from zinc-plated, blue-chromated Carbon Steel, providing a protective barrier against oxidation in moderately aggressive environments.<\/li>\n<li><strong>W5<\/strong>: Manufactured from high-quality V4A Stainless Steel (1.4401\/1.4571 &#8211; AISI 316\/316 Ti), specifically designed to withstand severe corrosive agents.<\/li>\n<\/ul>\n<p>Alternative materials and surface finishes are also available upon request for specific project requirements.<\/p>\n<h3>Technical and Dimensional Specifications<\/h3>\n<p>The versatility of the <strong>STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A &#8211; without Saddle)<\/strong> is demonstrated by the wide range of available sizes, covering nominal diameters (DN) from 20 up to 500. The system is compatible with pipe outside diameters ranging from a minimum of 20 mm to a maximum of 521 mm. Depending on the clamp size (identified by Dimension A, ranging from 30 mm to 554 mm), the ends feature metric threads (Thread G) proportioned to the expected load: M10 for smaller diameters, M12 and M16 for medium sizes, up to M20 and M24 for large-diameter pipes. The structural dimensions vary accordingly to ensure the integrity of the fastening system in every configuration.<\/p>\n<h3>Summary Technical Table of the Main Features of the STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A &#8211; without Saddle)<\/h3>\n<div style=\"width: 100%; overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">Feature<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Reference Standard<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DIN 3570, Type A<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Assembly Components<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1 U-Bolt Clamp (Type RBD), 2 Nuts (DIN EN ISO 4032)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Supply Condition<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Components supplied unassembled<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Material W1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Carbon Steel, uncoated<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Material W32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Carbon Steel, zinc-plated, blue-chromated<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Material W5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">V4A Stainless Steel 1.4401\/1.4571 (AISI 316\/316 Ti)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Pipe Outside Diameter (OD)<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">From 20 mm to 521 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Nominal Diameter (DN)<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">From 20 to 500<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Threads (Thread G)<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10, M12, M16, M20, M24<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h3>Product Codes<\/h3>\n<div style=\"width: 100%; overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">Pipe Size OD (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">Dimension A (mm)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">Thread G<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">W1 Code (Uncoated Steel)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #F2F2F2;\">W5 Code (V4A Stainless Steel)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20 \/ 25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-30-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-30-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.9 \/ 30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">40<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-40-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-40-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-48-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-48-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">38 \/ 42.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">56<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-56-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-56-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">44.5 \/ 48.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">62<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-62-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-62-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">57 \/ 60.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-76-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-76-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">64<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">82<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-82-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-82-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">76.1 \/ 88.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">94 \/ 106<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-94-W1-COMPL \/ RBD-106-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-94-W5-COMPL \/ RBD-106-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">108 \/ 114.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">136<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-136-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-136-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">133 \/ 139.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">164<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-164-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-164-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">159 \/ 168.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">192<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-192-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-192-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">193.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">218<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-218-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-218-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">216 \/ 219.1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">248<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-248-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-248-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">267 \/ 273<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">302 \/ 303<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-302-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-302-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">318 \/ 323.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">352<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-352-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-352-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">355.6 \/ 368<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">402<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-402-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-402-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">406.4 \/ 419<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">452<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-452-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-452-W5-COMPL<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">508 \/ 521<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">554<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-554-W1-COMPL<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">RBD-554-W5-COMPL<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A &#8211; without Saddle) is designed for suspended or supported installation of pipes on beams and profiles. Featuring two threaded ends, it ensures a precise fit to the pipe outside diameter (20-521 mm). Available in carbon steel (W1, W32) and V4A stainless steel (W5). The available product codes include all family configurations according to catalogue dimensions, such as: RBD-30-W1-COMPL, RBD-40-W32-COMPL, RBD-56-W5-COMPL.<\/p>\n","protected":false},"featured_media":13098,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[101,473],"product_tag":[281],"class_list":{"0":"post-13332","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-clamps","7":"product_cat-flat-and-round-u-bolts-din-3570","8":"product_tag-stauff","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v26.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>STAUFF Round U-Bolt Clamp RBD \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"STAUFF Round U-Bolt Clamp RBD (DIN 3570, Type A - without Saddle) for pipe installation on beams and profiles. W1, W32 and W5 steel. 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