{"id":13941,"date":"2026-09-29T16:00:31","date_gmt":"2026-09-29T14:00:31","guid":{"rendered":"https:\/\/lubeteam.it\/?post_type=product&#038;p=13941"},"modified":"2026-09-30T12:15:42","modified_gmt":"2026-09-30T10:15:42","slug":"oleo-tecnica-butt-weld-double-flanges","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/oleo-tecnica-butt-weld-double-flanges\/","title":{"rendered":"Oleo Tecnica Butt-Weld Double Flanges"},"content":{"rendered":"<h3>Construction Features and Dimensions<\/h3>\n<p>Oleo Tecnica Butt-Weld Double Flanges represent a robust and reliable solution for connecting rigid pipes within high-performance hydraulic systems. The construction design of these flanges features a 30\u00b0 bevel angle, optimised to facilitate butt welding and ensure maximum penetration and structural sealing of the joint.<\/p>\n<p>These components are designed to be fully compatible with pipes having specific wall thicknesses, in particular covering SCH.80, SCH.160 and SCH.XXS schedules. During installation and selection, it is strictly necessary to verify that flange dimensions &#8220;A&#8221; and &#8220;B&#8221; correspond exactly to the schedule of the pipe being used, in order to prevent misalignment and ensure correct fluid dynamics throughout the system.<\/p>\n<h3>Working Pressure and Available Series<\/h3>\n<p>The range is divided into two main categories to meet different load requirements: Series 3000 and Series 6000.<\/p>\n<p>Series 3000 covers sizes from 1\/2&#8243; up to 5&#8243;. The maximum recommended working pressure (referred to SCH.80) for this series starts at 345 Kg\/cm\u00b2 for smaller sizes, progressively decreasing to 34 Kg\/cm\u00b2 for the 3&#8243;1\/2, 4&#8243; and 5&#8243; versions.<\/p>\n<p>Series 6000, designed for higher-pressure circuits, is available in sizes from 1\/2&#8243; to 3&#8243;. In this case, maximum recommended working pressures reach 414 Kg\/cm\u00b2 for the smaller diameters, decreasing to 200 Kg\/cm\u00b2 for the 3&#8243; model.<\/p>\n<p>It is essential to specify that the recommended working pressure stated in the catalogue is based on the flange itself: the actual maximum working pressure of the complete system is determined by the wall thickness and material type (steel grade) of the pipe used.<\/p>\n<h3>Materials and Ordering Designation<\/h3>\n<p>Oleo Tecnica Butt-Weld Double Flanges are supplied as a complete configuration including flange, counter flange and screw set. Available flange-body materials are S355 carbon steel and AISI 316L stainless steel, providing suitable options for standard or highly corrosive environments.<\/p>\n<p>When ordering, the designation varies according to the material and type of fasteners required (metric or UNC). Product families are identified as follows:<\/p>\n<ul>\n<li>For S355 steel with metric screws, the designation is <strong>DFS&#8230;STM<\/strong>, while with UNC screws it is <strong>DFS&#8230;STU<\/strong>.<\/li>\n<li>For AISI 316L steel with metric screws, the designation is <strong>DFX&#8230;STM<\/strong>, while with UNC screws it is <strong>DFX&#8230;STU<\/strong>.<\/li>\n<\/ul>\n<p>Important technical note: both metric and UNC screw sets supplied with the assembly are available exclusively in carbon steel, regardless of the material selected for the flange body.<\/p>\n<h3>Summary technical table of the main characteristics of Oleo Tecnica Butt-Weld Double Flanges<\/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;\">Product Type<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Butt-Weld Double Flanges (Weld on double flanges)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Available Series<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Series 3000 \/ Series 6000<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Compatible Pipe Schedules<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">SCH.80, SCH.160, SCH.XXS<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Flange Body Materials<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">S355 Steel, AISI 316L Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Sizes &#8211; Series 3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">From 1\/2&#8243; to 5&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Max. Pressure &#8211; Series 3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">From 345 Kg\/cm\u00b2 to 34 Kg\/cm\u00b2 (referred to SCH.80)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Sizes &#8211; Series 6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">From 1\/2&#8243; to 3&#8243;<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Max. Pressure &#8211; Series 6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">From 414 Kg\/cm\u00b2 to 200 Kg\/cm\u00b2 (referred to SCH.80)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Supplied Screw Type<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Metric or UNC (exclusively in carbon steel)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Bevel Angle<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30\u00b0<\/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;\">Model (Base Code)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\">Series<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\">Size<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\">Maximum Recommended Pressure (Kg\/cm\u00b2)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS080ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">345<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS080ST038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">345<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS100ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/4&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">345<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS102ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">345<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS104ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">276<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS106ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">207<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS108ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">207<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS110ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2&#8243;1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">172<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS112ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">138<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS114ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3&#8243;1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS116ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS118ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS401ST012<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">414<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS401ST038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">414<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS402ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/4&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">414<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS403ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">414<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS404ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">375<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS404STL13<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;1\/4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">375<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS405ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1&#8243;1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">320<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS406ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">250<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS507ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2&#8243;1\/2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">230<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">DFS508ST<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6000<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3&#8243;<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">200<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Designed for high-pressure applications, Oleo Tecnica Butt-Weld Double Flanges are available in Series 3000 and 6000. Manufactured in S355 or AISI 316L steel, they are suitable for SCH.80, SCH.160 and SCH.XXS pipes. It is essential to verify that dimensions &#8220;A&#8221; and &#8220;B&#8221; match the schedule of the pipe used. System pressure depends on pipe wall thickness.<br \/> The available product codes are: DFS080ST, DFS080ST038, DFS100ST, DFS102ST, DFS104ST, DFS106ST, DFS108ST, DFS110ST, DFS112ST, DFS114ST, DFS116ST, DFS118ST, DFS401ST012, DFS401ST038, DFS402ST, DFS403ST, DFS404ST, DFS404STL13, DFS405ST, DFS406ST, DFS507ST, DFS508ST (available in the STM and STU completion families).<\/p>\n","protected":false},"featured_media":13712,"template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[496,106,493],"product_tag":[327],"class_list":{"0":"post-13941","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-butt-weld-flanges","7":"product_cat-flanges","8":"product_cat-sae-j518","9":"product_tag-oleo-tecnica","11":"first","12":"instock","13":"shipping-taxable","14":"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>Oleo Tecnica Butt-Weld Double Flanges - LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Oleo Tecnica Butt-Weld Double Flanges in S355 and AISI 316L. Available in Series 3000 and 6000, compatible with SCH.80, SCH.160 and SCH.XXS pipes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lubeteam.it\/en\/product\/oleo-tecnica-butt-weld-double-flanges\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oleo Tecnica Butt-Weld Double Flanges\" \/>\n<meta property=\"og:description\" content=\"Oleo Tecnica Butt-Weld Double Flanges in S355 and AISI 316L. 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