{"id":9861,"date":"2026-06-06T00:13:43","date_gmt":"2026-06-05T21:13:43","guid":{"rendered":"https:\/\/altal.md\/?post_type=product&#038;p=9861"},"modified":"2026-06-29T15:29:34","modified_gmt":"2026-06-29T12:29:34","slug":"90-degree-corrugated-conduit-coupling-ad28-5b","status":"publish","type":"product","link":"https:\/\/altal.md\/en\/mufta-90-pentru-tuburi-gofrate-ad28-5b\/","title":{"rendered":"90\u00b0 coupling for corrugated pipes AD28.5B\/PG21"},"content":{"rendered":"<h2><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">90\u00b0 coupling for corrugated pipes AD28.5B \u2013 maximum protection in confined spaces<\/span><\/h2>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The AD28.5B 90\u00b0 conduit connector is designed to provide secure connections between conduits with an outer diameter of 28.5 mm and various electrical equipment. The angled design allows changing the direction of the wiring route without excessive bending and without mechanical stress on the conductors. 90\u00b0 connectors with PG21 thread and polyamide body are widely used in professional cable protection systems.<\/span><\/p>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">In many industrial electrical installations, the space available around panels or enclosures is limited. Using a straight connector can complicate cable routing and increase the risk of damage to the conduit. The AD28.5B 90\u00b0 connector for corrugated conduits allows for a neat side entry and helps save space inside the installation.<\/span><\/p>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The product is made of polyamide resistant to shocks, vibrations and temperature variations. Thanks to its robust construction, the connector can be used in industrial applications, HVAC systems, photovoltaic installations, control panels and automation equipment.<\/span><\/p>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The integrated clamping system firmly locks the corrugated tube and prevents accidental detachment during operation. In the event of service work, the tube can be quickly removed by pressing the safety ring, without the use of special tools.<\/span><\/p>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The AD28.5B 90\u00b0 corrugated conduit connector is the ideal choice when it comes to protecting cables, sealing connections and optimizing installation space. The ergonomic design simplifies installation and reduces the time required for electrical work.<\/span><\/p>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Advantages<\/span><\/h3>\n<ul data-spread=\"false\">\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">90\u00b0 angled construction;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Compatible with AD28.5B corrugated tube;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Filet exterior PG21;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">High degree of protection IP68;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Quick assembly without special tools;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Secure tube fixation;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Shock and vibration resistance;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Suitable for industrial and commercial applications;<\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Saves space in electrical panels.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Frequently Asked Questions (FAQ)<\/span><\/h2>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">What is the 90\u00b0 AD28.5B coupling used for?<\/span><\/h3>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">For connecting corrugated tubes to electrical equipment when the cable route requires a 90\u00b0 change of direction.<\/span><\/p>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">What type of tube is compatible?<\/span><\/h3>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The product is intended for corrugated tubes with an outer diameter of 28.5 mm.<\/span><\/p>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">What thread does the connector have?<\/span><\/h3>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">The coupling is equipped with PG21 external thread.<\/span><\/p>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Can it be used outdoors?<\/span><\/h3>\n<p class=\"isSelectedEnd\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Yes. The IP68 rating provides high resistance to water and dust.<\/span><\/p>\n<h3><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Is a special tool required for installation?<\/span><\/h3>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">No. The connector is designed for quick assembly and disassembly.<\/span><\/p>\n<h2 data-start=\"3235\" data-end=\"3301\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">90\u00b0 coupling characteristic for corrugated pipes AD28.5B<\/span><\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" style=\"height: 324px; width: 47.8198%; border-style: solid; border-color: #000000;\" border=\"1\" data-start=\"144\" data-end=\"475\">\n<thead data-start=\"144\" data-end=\"172\">\n<tr style=\"height: 36px;\" data-start=\"144\" data-end=\"172\">\n<th class=\"last:pe-10\" style=\"width: 22.8205%; height: 36px;\" data-start=\"144\" data-end=\"161\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Characteristic<\/span><\/th>\n<th class=\"last:pe-10\" style=\"width: 24.6154%; height: 36px;\" data-start=\"161\" data-end=\"172\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Value<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"203\" data-end=\"475\">\n<tr style=\"height: 36px;\" data-start=\"203\" data-end=\"254\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"203\" data-end=\"216\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Product type<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-col-size=\"sm\" data-start=\"216\" data-end=\"254\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">90\u00b0 elbow for corrugated pipes<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"255\" data-end=\"294\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"255\" data-end=\"284\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Corrugated tube size<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-col-size=\"sm\" data-start=\"284\" data-end=\"294\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">AD28.5<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"295\" data-end=\"317\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"295\" data-end=\"307\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Tip filet<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-start=\"307\" data-end=\"317\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">PG21<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"318\" data-end=\"363\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"318\" data-end=\"352\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Thread outer diameter<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-col-size=\"sm\" data-start=\"352\" data-end=\"363\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">28.3 mm<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"364\" data-end=\"396\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"364\" data-end=\"385\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Thread length<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-col-size=\"sm\" data-start=\"385\" data-end=\"396\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">13 mm<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"397\" data-end=\"426\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"397\" data-end=\"408\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Material<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-col-size=\"sm\" data-start=\"408\" data-end=\"426\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Polyamide (PA)<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"427\" data-end=\"455\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"427\" data-end=\"447\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Degree of protection<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-start=\"447\" data-end=\"455\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">IP68<\/span><\/td>\n<\/tr>\n<tr style=\"height: 36px;\" data-start=\"456\" data-end=\"475\">\n<td style=\"width: 22.8205%; height: 36px;\" data-start=\"456\" data-end=\"466\" data-col-size=\"sm\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Color<\/span><\/td>\n<td style=\"width: 24.6154%; height: 36px; text-align: center;\" data-col-size=\"sm\" data-start=\"466\" data-end=\"475\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Black<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h3 data-section-id=\"94cugx\" data-start=\"3303\" data-end=\"3326\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Recommended products<\/span><\/h3>\n<ul data-start=\"3328\" data-end=\"3515\" data-is-last-node=\"\" data-is-only-node=\"\">\n<li data-section-id=\"3xoguk\" data-start=\"3328\" data-end=\"3356\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/corrugated-conduit-28-5-mm-black-with-draw-wire\/\" target=\"_blank\" rel=\"noopener\">Flexible corrugated tube 28.5<\/a><\/span><\/li>\n<li data-section-id=\"ndh1zq\" data-start=\"3357\" data-end=\"3383\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/corrugated-conduit-coupling-ad28-5\/\" target=\"_blank\" rel=\"noopener\">Coupling for corrugated tube 28.5 mm<\/a><\/span><\/li>\n<li data-section-id=\"1tf8ffa\" data-start=\"3384\" data-end=\"3419\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/heat-shrink-tube-8mm-black\/\" target=\"_blank\" rel=\"noopener\">Black heat shrink tube 8 mm<\/a><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/perforated-cable-trunking-35x40x2000mm\/\" target=\"_blank\" rel=\"noopener\">Nylon cable ties 2.5 x 200 mm.<\/a><\/span><\/li>\n<li data-section-id=\"1rdard\" data-start=\"3451\" data-end=\"3473\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/corrugated-conduit-18-5-mm-black-with-draw-wire\/\" target=\"_blank\" rel=\"noopener\">Perforated cable channel<\/a><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/tb-terminal-block-tb-2505\/\" target=\"_blank\" rel=\"noopener\">Bloc terminal 25A<\/a><\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<h2><span style=\"color: #800080; font-family: arial, helvetica, sans-serif;\">Model: <\/span><span style=\"color: #800080; font-family: arial, helvetica, sans-serif;\">AD28.5B\/<\/span><span style=\"color: #800080; font-family: arial, helvetica, sans-serif;\">PG21 \/ 90\u00b0<\/span><\/h2>\n<ul>\n<li>Name:\u00a0<strong>Corrugated tube coupling<\/strong><\/li>\n<li>Connection type: <strong>C<\/strong><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\"><strong>onector ungiular 90\u00b0<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Outer tube diameter: <strong>28.5 mm<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Filet: <strong>PG21<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Mounting size: <strong>28,3 mm<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Degree of protection: <strong>IP68<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Material:<strong> Polyamide<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Color: <strong>BLACK<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Assembly: <strong>without special tools<\/strong><\/span><\/li>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Application: <strong>Connecting corrugated tubes to electrical panels, distribution boxes and electrical equipment.<\/strong><\/span><\/li>\n<\/ul>\n<hr \/>\n<p>&nbsp;<\/p>","protected":false},"featured_media":9864,"comment_status":"open","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[198],"product_cat":[987,183,1066],"product_tag":[1001,1071,997,1067,1070,996],"class_list":["post-9861","product","type-product","status-publish","has-post-thumbnail","product_brand-altal","product_cat-produse-electrice","product_cat-catalog","product_cat-cuplaj-pentru-tuburi-gofrate","product_tag-28-5-mm","product_tag-1071","product_tag-gofrat","product_tag-mufta","product_tag-pg21","product_tag-tub","product_shipping_class-greutate-mica","first","instock","featured","taxable","shipping-taxable","purchasable","product-type-simple","entry","content-bg","loop-entry"],"_links":{"self":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product\/9861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/comments?post=9861"}],"version-history":[{"count":0,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product\/9861\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/media\/9864"}],"wp:attachment":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/media?parent=9861"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product_brand?post=9861"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product_cat?post=9861"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product_tag?post=9861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}