{"id":552,"date":"2021-09-06T12:33:02","date_gmt":"2021-09-06T12:33:02","guid":{"rendered":"https:\/\/www.siekmann-rohrbogen.de\/giecie-rur-wykonane-z-rury-bezszwowej\/"},"modified":"2026-10-30T10:32:21","modified_gmt":"2026-10-30T10:32:21","slug":"giecie-rur-wykonane-z-rury-bezszwowej","status":"publish","type":"page","link":"https:\/\/www.siekmann-rohrbogen.de\/pl\/","title":{"rendered":"Kolana hamburskie &#8211; Kolana rurowe"},"content":{"rendered":"\n<!-- Siekmann Startseite NEUES DESIGN (PL) \u2013 Block \"Individuelles HTML\". 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.btns{justify-content:center}\n\/* Einblend-Animation *\/\n#skr.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}\n#skr.js .reveal.in{opacity:1;transform:none}\n\/* Responsiv *\/\n@media (max-width:1024px){#skr .hero-grid{grid-template-columns:1fr}#skr .hero-visual{max-width:560px}#skr .arc-svg{display:none}}\n@media (max-width:768px){\n#skr .stats{grid-template-columns:repeat(2,1fr)}\n#skr .grid-2{grid-template-columns:1fr}\n#skr .gallery{grid-template-columns:1fr 1fr}\n#skr .bauart-demo{grid-template-columns:1fr;justify-items:center;text-align:center}\n#skr .bauart-info .tabs{justify-content:center}\n#skr .calc-fields{grid-template-columns:1fr}\n#skr .wall-row{grid-template-columns:1fr;gap:.35rem}\n#skr .swipe-hint{display:block}\n#skr table{font-size:12px}\n#skr th,#skr td{padding:.4rem .45rem}\n#skr .spec-table th{width:40%}\n}\n@media (max-width:480px){#skr .gallery{grid-template-columns:1fr}}\n@media (prefers-reduced-motion:reduce){#skr *,#skr *::before,#skr *::after{animation:none!important;transition:none!important}#skr.js .reveal{opacity:1;transform:none}#skr .arc-path{stroke-dashoffset:0}#skr .arc-tick{opacity:.9}}\n<\/style>\n<div id=\"skr\" lang=\"pl\" data-dec=\",\"><section class=\"hero\"><svg class=\"arc-svg\" viewBox=\"0 0 600 500\" aria-hidden=\"true\" focusable=\"false\"><path class=\"arc-path\" d=\"M 80 460 A 380 380 0 0 1 460 80\"\/><text class=\"arc-tick\" x=\"60\" y=\"485\" style=\"animation-delay:.6s\">0\u00b0<\/text><text class=\"arc-tick\" x=\"150\" y=\"205\" style=\"animation-delay:1.4s\">45\u00b0<\/text><text class=\"arc-tick\" x=\"470\" y=\"70\" style=\"animation-delay:2.4s\">90\u00b0<\/text><\/svg><div class=\"wrap hero-grid\"><div><p class=\"kicker\">special.elbow.production. \u2014 B\u00fcnde, Niemcy<\/p><h1>Kolana rurowe prosto od producenta \u2013 <em lang=\"de\">Siekmann<\/em><\/h1><p>Bezszwowe, grubo\u015bcienne kolana specjalne ze stali i stali nierdzewnej. Produkowane zgodnie z EN&nbsp;10253, DIN&nbsp;2605 i ASME&nbsp;B16.9.<\/p><ul class=\"hero-badges\"><li>EN 10253<\/li><li>DIN 2605<\/li><li>ASME B16.9<\/li><li>ISO 9001:2015 \u00b7 T\u00dcV Nord<\/li><\/ul><div class=\"btns\"><a class=\"btn btn-white\" href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">Zapytaj o kolana \u2192<\/a><a class=\"btn btn-ghost\" href=\"#lieferprogramm\">Program produkcji<\/a><\/div><\/div><figure class=\"hero-visual\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/09\/K1600_IMG_7675.jpg\" alt=\"Grubo\u015bcienne kolano bezszwowe 114,3 \u00d7 12,5 mm, typ B, wykonanie 3D\" width=\"1024\" height=\"683\" fetchpriority=\"high\"><\/figure><\/div><div class=\"wrap\"><dl class=\"stats\" aria-label=\"Najwa\u017cniejsze dane programu produkcji\"><div class=\"stat\"><dt>\u015arednica zewn\u0119trzna<\/dt><dd>13,7 \u2013 219,1 mm<\/dd><\/div><div class=\"stat\"><dt>Grubo\u015b\u0107 \u015bcianki<\/dt><dd>1 \u2013 55 mm<\/dd><\/div><div class=\"stat\"><dt>Tolerancja promienia gi\u0119cia<\/dt><dd>do \u00b11 mm<\/dd><\/div><div class=\"stat\"><dt>Certyfikaty<\/dt><dd>ISO 9001:2015 \u00b7 T\u00dcV Nord<\/dd><\/div><\/dl><\/div><\/section><section id=\"lieferprogramm\"><div class=\"wrap\"><div class=\"reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Program produkcji<\/p><h2>Bezszwowe. Grubo\u015bcienne. Tak\u017ce w ma\u0142ych seriach.<\/h2><p class=\"lead\"><strong>Siekmann GmbH &amp; Co. KG<\/strong> to Pa\u0144stwa niezawodny partner w zakresie <strong>kolan z rur bezszwowych<\/strong> \u2013 produkowanych w Niemczech.<\/p><p style=\"max-width:760px\">Przetwarzamy <strong>stal<\/strong> i <strong>stal nierdzewn\u0105<\/strong> i specjalizujemy si\u0119 w <strong>grubo\u015bciennych kolanach do spawania<\/strong> oraz <strong>kolanach specjalnych<\/strong>. Nasz\u0105 mocn\u0105 stron\u0105 jest precyzyjne formowanie \u2013 tak\u017ce przy ma\u0142ych ilo\u015bciach i kr\u00f3tkich terminach dostaw. Jako producent prowadzimy w\u0142asny magazyn p\u00f3\u0142fabrykat\u00f3w, dzi\u0119ki czemu mo\u017cemy szybko dostarczy\u0107 nawet pojedyncze pozycje.<\/p><\/div><div class=\"grid-2 top reveal\" style=\"margin-top:1.6rem\"><div><h3>Nasz program produkcji w skr\u00f3cie<\/h3><ul class=\"check-list\"><li>Bezszwowe <strong>kolana rurowe<\/strong> o du\u017cej grubo\u015bci \u015bcianki<\/li><li>Promienie specjalne i kolana rurowe o w\u0105skich tolerancjach<\/li><li>Stal, materia\u0142y wysokostopowe i stal nierdzewna<\/li><li><strong>Kolana 45\u00b0, 90\u00b0 i 180\u00b0<\/strong> \u2013 mo\u017cliwe tak\u017ce k\u0105ty po\u015brednie<\/li><li><strong>Kolana typu B<\/strong> wg EN 10253-2, EN 10253-4 lub DIN 2605 cz\u0119\u015b\u0107 2 z pe\u0142nym wsp\u00f3\u0142czynnikiem wytrzyma\u0142o\u015bci<\/li><li>Ma\u0142e serie i pojedyncze sztuki w bardzo kr\u00f3tkich terminach<\/li><\/ul><\/div><div><h3>Produkujemy kolana rurowe wg EN 10253, DIN 2605 lub ASME B16.9:<\/h3><div class=\"table-scroll\" style=\"margin-top:1rem\"><table class=\"spec-table\"><tbody><tr><th scope=\"row\">\u015arednica zewn\u0119trzna<\/th><td>13,7 mm \u2013 219,1 mm<\/td><\/tr><tr><th scope=\"row\">Grubo\u015b\u0107 \u015bcianki<\/th><td>1 mm do 55 mm, zale\u017cnie od \u015brednicy zewn\u0119trznej<\/td><\/tr><tr><th scope=\"row\">K\u0105t<\/th><td>15\u00b0, 30\u00b0, 45\u00b0, 90\u00b0, 180\u00b0 i k\u0105ty po\u015brednie, zale\u017cnie od wymiaru<\/td><\/tr><tr><th scope=\"row\">Wykonanie<\/th><td>2D, 3D, 5D, Long Radius (LR), Short Radius (SR) \u2013 kolejne promienie w cz\u0119\u015bci <a href=\"#biegeradius\">Promienie gi\u0119cia<\/a><\/td><\/tr><tr><th scope=\"row\">Normy<\/th><td>EN 10253 typ A i B, DIN 2605 cz\u0119\u015b\u0107 1 i 2, ASME B16.9, produkcja wed\u0142ug specyfikacji klienta<\/td><\/tr><tr><th scope=\"row\">Tolerancje<\/th><td>Produkujemy w typowych tolerancjach norm dla kolan \u2013 cz\u0119sto tak\u017ce w\u0119\u017cszych, np. z tolerancj\u0105 \u015brednicy gi\u0119cia \u00b11 mm.<\/td><\/tr><\/tbody><\/table><\/div><\/div><\/div><div class=\"reveal\" style=\"margin-top:1.6rem\"><p>Nasze kolana rurowe pracuj\u0105 na ca\u0142ym \u015bwiecie \u2013 m.in. w <a href=\"#referenzen\">rafineriach i elektrowniach<\/a>, wysokosprawnych elektrowniach gazowych, na platformach wiertniczych, w wymiennikach ciep\u0142a i w budowie maszyn.<\/p><p>Dostarczamy kolana bezszwowe ze stali w\u0119glowej, stali wysokostopowej lub stali nierdzewnej. Du\u017ce do\u015bwiadczenie w obr\u00f3bce cieplnej pozwala nam formowa\u0107 szerok\u0105 gam\u0119 materia\u0142\u00f3w \u2013 zestawienie znajd\u0105 Pa\u0144stwo w cz\u0119\u015bci <a href=\"#werkstoffe\">Materia\u0142y<\/a>.<\/p><p>Nasza produkcja podlega \u015bcis\u0142ej kontroli jako\u015bci: w trakcie ca\u0142ego procesu wykonujemy kontrole wymiarowe i dzi\u0119ki temu wcze\u015bnie wykrywamy odchylenia. Firma Siekmann jest nadzorowana przez T\u00dcV Nord i posiada certyfikat ISO&nbsp;9001:2015 \u2013 podstaw\u0119 ci\u0105g\u0142ego doskonalenia naszych proces\u00f3w. Wi\u0119cej w cz\u0119\u015bci <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/serwis\/\">Serwis i jako\u015b\u0107<\/a>.<\/p><div class=\"callout callout-row\"><p><strong>Chc\u0105 Pa\u0144stwo kupi\u0107 kolana rurowe?<\/strong> Na naszej stronie kontaktowej znajduje si\u0119 formularz do bezpo\u015bredniego zapytania.<\/p><a class=\"btn btn-blau\" href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">Do zapytania \u2192<\/a><\/div><\/div><\/div><\/section><section id=\"werkstoffe\" class=\"alt\"><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Materia\u0142y<\/p><h2>Materia\u0142y na kolana rurowe<\/h2><p class=\"lead\">Przez lata zdobyli\u015bmy szerokie do\u015bwiadczenie w produkcji kolan rurowych. Do przetwarzanych przez nas materia\u0142\u00f3w nale\u017c\u0105 stale w\u0119glowe, stale wysokostopowe i stale nierdzewne. Kolana produkujemy z nast\u0119puj\u0105cych materia\u0142\u00f3w:<\/p><div class=\"tabs\" role=\"tablist\"><button type=\"button\" class=\"tab-btn active\" role=\"tab\" aria-selected=\"true\" data-tab=\"endin\">EN \/ DIN<\/button><button type=\"button\" class=\"tab-btn\" role=\"tab\" aria-selected=\"false\" data-tab=\"asme\">ASME<\/button><\/div><div class=\"tab-panel active\" id=\"skr-panel-endin\" role=\"tabpanel\"><ul class=\"chips\"><li>P235GH TC1\/2 (St 35.8 I\/III)<\/li><li>P265GH<\/li><li>S355J2H<\/li><li>16Mo3 (15Mo3)<\/li><li>10CrMo9-10 (10CrMo910)<\/li><li>13CrMo4-5 (13CrMo44)<\/li><li>X11CrMo5<\/li><li>X11CrMo9-1<\/li><li>X20CrMoV11-1<\/li><li>X10CrMoVNb9-1<\/li><li>X10CrWMoVNb9-2<\/li><li>7CrMoVTiB10-10<\/li><li>P215NL (TTSt35N\/V)<\/li><li>12Ni14 (10Ni14)<\/li><li>P355N (StE355)<\/li><li>P355NH (WStE355)<\/li><li>P355NL1 (TStE355)<\/li><li>P355NL2<\/li><li>L290NB (StE 290.7)<\/li><li>L360NB (StE 360.7)<\/li><li>L415<\/li><li>1.4301<\/li><li>1.4306<\/li><li>1.4361<\/li><li>1.4362 (Lean Duplex)<\/li><li>1.4401<\/li><li>1.4404<\/li><li>1.4410<\/li><li>1.4435<\/li><li>1.4436<\/li><li>1.4439<\/li><li>1.4462 (Duplex)<\/li><li>1.4466 (Super Duplex)<\/li><li>1.4501<\/li><li>1.4539<\/li><li>1.4541<\/li><li>1.4547<\/li><li>1.4550<\/li><li>1.4571<\/li><li>1.4841<\/li><li>1.4749<\/li><li>1.4828<\/li><li>1.4878<\/li><li>1.4876<\/li><li>1.4952<\/li><li>1.4835<\/li><li>1.4877<\/li><li>1.4910<\/li><li>1.4922<\/li><\/ul><\/div><div class=\"tab-panel\" id=\"skr-panel-asme\" role=\"tabpanel\"><ul class=\"chips\"><li>WPA<\/li><li>WPB<\/li><li>WPC<\/li><li>WP1<\/li><li>WP5<\/li><li>WP9<\/li><li>WP11<\/li><li>WP12<\/li><li>WP22<\/li><li>WP32\/27<\/li><li>WP91<\/li><li>WP92<\/li><li>WP304<\/li><li>WP304H<\/li><li>WP304L<\/li><li>WP310<\/li><li>WP316<\/li><li>WP316L<\/li><li>WP316Ti<\/li><li>WP321<\/li><li>WP347<\/li><li>WP347H<\/li><li>WPL3<\/li><li>WPL6<\/li><li>X42<\/li><li>X52<\/li><li>WPHY52<\/li><li>WPHY60<\/li><li>S30815<\/li><li>S31000<\/li><li>S31050<\/li><li>S31500<\/li><li>S31726<\/li><li>S31803<\/li><li>S32760<\/li><li>N08904<\/li><li>Alloy 800H<\/li><li>DMV310N<\/li><\/ul><\/div><p class=\"muted\" style=\"margin-top:1.4rem\">Brak Pa\u0144stwa materia\u0142u na li\u015bcie? <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">Prosimy o kontakt<\/a> \u2013 dzi\u0119ki do\u015bwiadczeniu w obr\u00f3bce cieplnej formujemy tak\u017ce materia\u0142y specjalne.<\/p><div class=\"gallery\"><figure><img src=\"\/wp-content\/uploads\/2021\/05\/K1600_20140508-IMG_0082.jpg\" alt=\"Bezszwowe kolano stalowe ze specjalnym ukosowaniem do ruroci\u0105g\u00f3w przemys\u0142owych\" width=\"1024\" height=\"683\" loading=\"lazy\" decoding=\"async\"><figcaption>Kolano ze specjalnym ukosem<\/figcaption><\/figure><figure><img src=\"\/wp-content\/uploads\/2021\/05\/K1600_20160315-IMG_00582.jpg\" alt=\"Grubo\u015bcienne kolano stalowe jako kszta\u0142tka wysokoci\u015bnieniowa\" width=\"1024\" height=\"683\" loading=\"lazy\" decoding=\"async\"><figcaption>Grubo\u015bcienna kszta\u0142tka wysokoci\u015bnieniowa<\/figcaption><\/figure><figure><img src=\"\/wp-content\/uploads\/2021\/05\/K1600_20160315-IMG_01042.jpg\" alt=\"Kolano rurowe o ma\u0142ym promieniu gi\u0119cia\" width=\"1024\" height=\"683\" loading=\"lazy\" decoding=\"async\"><figcaption>Ma\u0142y promie\u0144 gi\u0119cia<\/figcaption><\/figure><\/div><\/div><\/section><section id=\"normen\"><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Normy<\/p><h2>Jakie normy obowi\u0105zuj\u0105 dla kolan rurowych?<\/h2><div class=\"callout\"><span class=\"tag\">Aktualne wydania norm<\/span><p>Od lipca 2026 roku dla stali ferrytycznych obowi\u0105zuje <strong>DIN EN 10253-2:2026-07<\/strong> (EN 10253-2:2021+A1:2025), a od pa\u017adziernika 2025 roku dla stali austenitycznych i duplex <strong>DIN EN 10253-4:2025-10<\/strong>. Oba wydania zawieraj\u0105 cz\u0119\u015bciowo zmienione promienie gi\u0119cia w stosunku do poprzednich norm. Ch\u0119tnie wyja\u015bnimy r\u00f3\u017cnice \u2013 <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">prosimy o kontakt<\/a>.<\/p><\/div><div class=\"cards\"><article class=\"card\"><h3>EN 10253-2<\/h3><p>Aktualna norma dla kszta\u0142tek do przyspawania doczo\u0142owego ze stali niestopowych i stopowych <strong>ferrytycznych<\/strong> ze specjalnymi wymaganiami dotycz\u0105cymi bada\u0144. \u0141\u0105czy kilka norm DIN dla r\u00f3\u017cnych kszta\u0142tek w jedn\u0105 norm\u0119 europejsk\u0105; dla nas decyduj\u0105ca jest cz\u0119\u015b\u0107 dotycz\u0105ca kolan. Dostarczamy wykonania 2D, 3D, 5D i wiele promieni specjalnych pomi\u0119dzy nimi. Norma obejmuje tak\u017ce kolana z pe\u0142nym wsp\u00f3\u0142czynnikiem wytrzyma\u0142o\u015bci (<a href=\"#TypATypB\">typ B<\/a>): maj\u0105 one wyra\u017anie pogrubion\u0105 \u015bciank\u0119 po wewn\u0119trznej stronie \u0142uku, gdzie wyst\u0119puj\u0105 najwi\u0119ksze napr\u0119\u017cenia. Dodatkowo mo\u017cna uzgodni\u0107 r\u00f3\u017cne opcje.<\/p><p class=\"ex\">Przyk\u0142ad \u2014 opcja 15: Ka\u017cd\u0105 kszta\u0142tk\u0119 nale\u017cy podda\u0107 badaniu twardo\u015bci.<\/p><\/article><article class=\"card\"><h3>EN 10253-4<\/h3><p>Ta norma dotyczy kszta\u0142tek do przyspawania doczo\u0142owego ze <strong>stali austenitycznych i austenityczno-ferrytycznych (duplex)<\/strong> ze specjalnymi wymaganiami dotycz\u0105cymi bada\u0144. W du\u017cej mierze odpowiada EN 10253-2, ale zawiera miejscami inne promienie gi\u0119cia. Nasz zesp\u00f3\u0142 ch\u0119tnie poinformuje o r\u00f3\u017cnicach. Opcje z EN 10253-2 r\u00f3wnie\u017c tu wyst\u0119puj\u0105, ale zasadniczo si\u0119 r\u00f3\u017cni\u0105.<\/p><p class=\"ex\">Przyk\u0142ad \u2014 opcja 15: Nale\u017cy wystawi\u0107 \u015bwiadectwo odbioru 3.2 wg EN 10204.<\/p><\/article><article class=\"card\"><h3>DIN 2605<\/h3><p>Dawna niemiecka norma dla kolan rurowych, obecnie zast\u0105piona przez EN 10253. Dla kolan z pe\u0142nym wsp\u00f3\u0142czynnikiem wytrzyma\u0142o\u015bci podaje inne grubo\u015bci \u015bcianek ni\u017c nowe normy. DIN 2605 jest mniej obszerna ni\u017c EN 10253 i dotyczy wy\u0142\u0105cznie kolan, a nie innych kszta\u0142tek.<\/p><\/article><article class=\"card\"><h3>ASME B16.9<\/h3><p>Norma <strong>ASME B16.9<\/strong> okre\u015bla wymagania techniczne dla bezszwowych i spawanych kszta\u0142tek stalowych \u2013 w tym kolan w r\u00f3\u017cnych wykonaniach. Wymiary podaje si\u0119 w <strong>calach (\u015brednica zewn\u0119trzna)<\/strong> i <strong>szeregach Schedule (grubo\u015bci \u015bcianek)<\/strong>. Kolana wg ASME B16.9 s\u0105 stosowane na ca\u0142ym \u015bwiecie w budowie instalacji i ruroci\u0105g\u00f3w i zapewniaj\u0105 wysok\u0105 kompatybilno\u015b\u0107 oraz zgodno\u015b\u0107 z norm\u0105.<\/p><\/article><\/div><\/div><\/section><section id=\"grundlagen\" class=\"alt\"><div class=\"wrap grid-2 reveal\"><figure class=\"shot\"><img src=\"\/wp-content\/uploads\/2021\/05\/K1600_Rohrbogen_01.jpg\" alt=\"Bezszwowe kolano stalowe 180\u00b0\" width=\"800\" height=\"533\" loading=\"lazy\" decoding=\"async\"><\/figure><div><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Podstawy<\/p><h2>Czym jest kolano rurowe?<\/h2><p>Kolano rurowe to kszta\u0142tka umo\u017cliwiaj\u0105ca zmian\u0119 kierunku w instalacjach rurowych. Kolana r\u00f3\u017cni\u0105 si\u0119 \u015brednic\u0105 zewn\u0119trzn\u0105, grubo\u015bci\u0105 \u015bcianki, <a href=\"#biegeradius\">promieniem gi\u0119cia<\/a>, k\u0105tem i <a href=\"#werkstoffe\">materia\u0142em<\/a>. Zazwyczaj produkuje si\u0119 je ze spawanych p\u00f3\u0142skorup lub \u2013 jak w firmie Siekmann \u2013 z rur bezszwowych. Kolana stosuje si\u0119 w budowie elektrowni, budowie maszyn, produkcji wymiennik\u00f3w ciep\u0142a, budowie instalacji i wielu innych dziedzinach.<\/p><\/div><\/div><\/section><section id=\"TypATypB\"><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci<\/p><h2>Typ A \/ typ B \u2013 r\u00f3\u017cnica<\/h2><div class=\"grid-2 top\"><article class=\"card\"><h3>Typ A \u2013 obni\u017cony wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci<\/h3><p>Kszta\u0142tki maj\u0105 na ca\u0142ym \u0142uku tak\u0105 sam\u0105 grubo\u015b\u0107 \u015bcianki jak na ko\u0144cach do spawania. Wytrzyma\u0142o\u015b\u0107 na ci\u015bnienie wewn\u0119trzne jest ni\u017csza ni\u017c w przypadku rury o tej samej \u015brednicy zewn\u0119trznej, grubo\u015bci \u015bcianki i materiale \u2013 dlatego m\u00f3wi si\u0119 o <strong>obni\u017conym wsp\u00f3\u0142czynniku wytrzyma\u0142o\u015bci<\/strong>. Grubo\u015b\u0107 \u015bcianki na ca\u0142ym korpusie kszta\u0142tki musi, tak jak na przy\u0142\u0105czu rury, zachowa\u0107 minimum \u221212,5&nbsp;% grubo\u015bci nominalnej.<\/p><p class=\"val\"><small>Przyk\u0142ad 76,1 \u00d7 12,5 (2D)<\/small>Grubo\u015b\u0107 \u015bcianki wewn\u0105trz: 11,0 mm<\/p><\/article><article class=\"card\"><h3>Typ B \u2013 pe\u0142ny wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci<\/h3><p>Kszta\u0142tki maj\u0105 zwi\u0119kszon\u0105 grubo\u015b\u0107 \u015bcianki po wewn\u0119trznej stronie \u0142uku. Wytrzyma\u0142o\u015b\u0107 na ci\u015bnienie wewn\u0119trzne odpowiada rurze o tej samej \u015brednicy zewn\u0119trznej, grubo\u015bci \u015bcianki i materiale \u2013 to <strong>pe\u0142ny wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci<\/strong>. Wymagan\u0105 grubo\u015b\u0107 \u015bcianki po wewn\u0119trznej stronie \u0142uku oblicza si\u0119 z\u0142o\u017conym wzorem ze \u015brednicy zewn\u0119trznej, grubo\u015bci \u015bcianki, a przede wszystkim \u015brednicy gi\u0119cia. Kolana o szczeg\u00f3lnie ma\u0142ej \u015brednicy gi\u0119cia musz\u0105 mie\u0107 wewn\u0105trz znacznie grubsz\u0105 \u015bciank\u0119.<\/p><p class=\"val\"><small>Przyk\u0142ad 76,1 \u00d7 12,5 (2D)<\/small>Grubo\u015b\u0107 \u015bcianki wewn\u0105trz: 16,8 mm<\/p><\/article><\/div><p style=\"margin-top:1.4rem\">Normy EN 10253-2 i EN 10253-4 dziel\u0105 kolana na dwa typy o r\u00f3\u017cnych nazwach: EN 10253-2 nazywa je <strong>typ A i typ B<\/strong>, EN 10253-4 <strong>wykonanie A i wykonanie B<\/strong>.<\/p><figure class=\"fig\"><img src=\"\/wp-content\/uploads\/2021\/09\/TYPA_B-1.jpg\" alt=\"Przekr\u00f3j por\u00f3wnawczy grubo\u015bci \u015bcianki: kolano typu A i typu B, 76,1 \u00d7 12,5 mm, wykonanie 2D\" width=\"1024\" height=\"617\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"calc\" id=\"typ-b-rechner\"><div class=\"calc-head\"><h3>Kalkulator grubo\u015bci \u015bcianki typ A \/ typ B<\/h3><\/div><p class=\"muted\">Wpisz \u015brednic\u0119 zewn\u0119trzn\u0105 i nominaln\u0105 grubo\u015b\u0107 \u015bcianki, a nast\u0119pnie przesu\u0144 promie\u0144 gi\u0119cia. Paski pokazuj\u0105 minimaln\u0105 grubo\u015b\u0107 \u015bcianki kolana typu A (\u015bcianka nominalna \u221212,5&nbsp;%) oraz wymagan\u0105 minimaln\u0105 grubo\u015b\u0107 \u015bcianki t<sub>int,min<\/sub> po wewn\u0119trznej stronie \u0142uku kolana typu B wg EN 10253-2.<\/p><div class=\"calc-fields\"><label for=\"skr-d\">\u015arednica zewn\u0119trzna <span>(mm)<\/span><input type=\"text\" inputmode=\"decimal\" id=\"skr-d\" value=\"76,1\" autocomplete=\"off\"><\/label><label for=\"skr-t\">Nominalna grubo\u015b\u0107 \u015bcianki <span>(mm)<\/span><input type=\"text\" inputmode=\"decimal\" id=\"skr-t\" value=\"12,5\" autocomplete=\"off\"><\/label><label for=\"skr-r\">Promie\u0144 gi\u0119cia R <span>(mm)<\/span><input type=\"text\" inputmode=\"decimal\" id=\"skr-r\" value=\"63\" autocomplete=\"off\"><\/label><\/div><div class=\"slider\"><div class=\"slider-top\"><label for=\"skr-r-range\">Przesu\u0144 promie\u0144 gi\u0119cia<\/label><b id=\"skr-r-label\"><\/b><\/div><input type=\"range\" id=\"skr-r-range\" min=\"57\" max=\"228\" step=\"0.5\" value=\"63\"><div class=\"slider-top\"><span>\u2190 ma\u0142y<\/span><span>du\u017cy \u2192<\/span><\/div><div class=\"presets\"><span class=\"muted\" style=\"align-self:center;margin-right:.3rem\">Promie\u0144 wg normy:<\/span><button type=\"button\" class=\"tab-btn sm\" data-preset=\"2d\">2D<\/button><button type=\"button\" class=\"tab-btn sm\" data-preset=\"3d\">3D<\/button><button type=\"button\" class=\"tab-btn sm\" data-preset=\"5d\">5D<\/button><\/div><p class=\"calc-note\" id=\"skr-preset-info\" aria-live=\"polite\"><\/p><\/div><div class=\"bars\" role=\"status\" aria-live=\"polite\"><div class=\"wall-row\"><span class=\"wall-label\">Typ A<small>zwyk\u0142a \u015bcianka (minimalna)<\/small><\/span><div class=\"wall-track\"><div class=\"wall-bar grey\" id=\"skr-bar-a\">\u2013<\/div><\/div><\/div><div class=\"wall-row\"><span class=\"wall-label\">Typ B<small>wzmocniona \u015bcianka wewn\u0105trz<\/small><\/span><div class=\"wall-track\"><div class=\"wall-bar\" id=\"skr-bar-b\">\u2013<\/div><\/div><\/div><p class=\"wall-delta\" id=\"skr-delta\"><\/p><\/div><p class=\"calc-note\">Warto\u015bci wy\u0142\u0105cznie orientacyjne, zaokr\u0105glone w g\u00f3r\u0119 do 0,1 mm. Nie zast\u0119puj\u0105 oblicze\u0144 wytrzyma\u0142o\u015bciowych.<\/p><\/div><h3 style=\"margin-top:2.2rem\">Cz\u0119\u015b\u0107 1 lub cz\u0119\u015b\u0107 2 wg DIN 2605<\/h3><p>DIN 2605 r\u00f3wnie\u017c rozr\u00f3\u017cnia obni\u017cony i pe\u0142ny wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci. Przy pe\u0142nym wsp\u00f3\u0142czynniku \u2013 <strong>kolano cz\u0119\u015bci 2<\/strong> \u2013 \u015bcianka w wewn\u0119trznym \u0142uku jest znacznie grubsza. W odr\u00f3\u017cnieniu od EN 10253 norma DIN 2605 nie podaje wzoru obliczeniowego, lecz zestawia grubo\u015bci \u015bcianek w tabelach.<\/p><p><strong>Kolano cz\u0119\u015bci 1<\/strong> nie ma pogrubienia w promieniu wewn\u0119trznym; na ca\u0142ym kolanie obowi\u0105zuj\u0105 te same tolerancje grubo\u015bci \u015bcianki.<\/p><\/div><\/section><section id=\"bauarten\" class=\"alt\"><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Wykonania<\/p><h2>R\u00f3\u017cnice mi\u0119dzy wykonaniami kolan<\/h2><p>Kolana r\u00f3\u017cni\u0105 si\u0119 \u015brednic\u0105 zewn\u0119trzn\u0105, grubo\u015bci\u0105 \u015bcianki i \u015brednic\u0105 gi\u0119cia. Normy okre\u015blaj\u0105 dla \u015brednic gi\u0119cia tzw. wykonania standardowe \u2013 to ujednolicenie u\u0142atwia konstruktorom planowanie. W EN i DIN wyst\u0119puj\u0105 wykonania standardowe <strong>2D, 3D, 5D i 10D<\/strong>. Ameryka\u0144ska ASME B16.9 u\u017cywa poj\u0119\u0107 <strong>Long Radius<\/strong> i <strong>Short Radius<\/strong>: Long Radius odpowiada mniej wi\u0119cej 3D, a Short Radius mniej wi\u0119cej 2D.<\/p><figure class=\"fig\"><img src=\"\/wp-content\/uploads\/2021\/06\/biegedurchmesser.jpg\" alt=\"Schemat: kolana w wykonaniu 2D, 3D i 5D w por\u00f3wnaniu \u015brednic gi\u0119cia\" width=\"1000\" height=\"150\" loading=\"lazy\" decoding=\"async\"><\/figure><p>Mimo to normy r\u00f3\u017cni\u0105 si\u0119 w niekt\u00f3rych punktach. Kolano o \u015brednicy zewn\u0119trznej 101,6&nbsp;mm ma w <strong>wykonaniu 2D<\/strong> wg EN 10253-2:2008 \u015brednic\u0119 gi\u0119cia 190,0&nbsp;mm \u2013 jako <strong>Short Radius<\/strong> wg ASME B16.9 jednak tylko 177,8&nbsp;mm. W wykonaniu 5D \u015brednica gi\u0119cia wynosi wg EN 10253-2:2008 415,0&nbsp;mm, a wg EN 10253-4 (dla stali austenitycznych) 410&nbsp;mm. Wymaga to wi\u0119c staranno\u015bci, aby unikn\u0105\u0107 pomy\u0142ek.<\/p><div class=\"bauart-demo\"><svg viewBox=\"0 0 250 220\" aria-hidden=\"true\" focusable=\"false\"><path class=\"demo-guide\" d=\"M 30 200 L 230 200 M 30 200 L 30 10\"\/><path class=\"demo-arc\" id=\"skr-arc\" d=\"M 30 130 A 70 70 0 0 1 100 200\"\/><\/svg><div class=\"bauart-info\"><div class=\"tabs\" role=\"group\" aria-label=\"Wybierz wykonanie\"><button type=\"button\" class=\"tab-btn active\" aria-pressed=\"true\" data-bauart=\"2d\">2D<\/button><button type=\"button\" class=\"tab-btn\" aria-pressed=\"false\" data-bauart=\"3d\">3D<\/button><button type=\"button\" class=\"tab-btn\" aria-pressed=\"false\" data-bauart=\"5d\">5D<\/button><\/div><div aria-live=\"polite\"><h3 id=\"skr-bauart-title\">Wykonanie 2D \u2013 ma\u0142y promie\u0144 gi\u0119cia<\/h3><p id=\"skr-bauart-text\">Kolana rurowe w wykonaniu 2D maj\u0105 ma\u0142y promie\u0144 gi\u0119cia, odpowiadaj\u0105cy w przybli\u017ceniu jednokrotno\u015bci \u015brednicy rury. Umo\u017cliwiaj\u0105 zwart\u0105 zmian\u0119 kierunku przy niewielkim zapotrzebowaniu na miejsce, a pod wzgl\u0119dem geometrii s\u0105 por\u00f3wnywalne z kolanami o kr\u00f3tkim promieniu (Short Radius) wg ASME B16.9. W wykonaniu jako typ B wg EN 10253-2 wymagana jest zwi\u0119kszona grubo\u015b\u0107 \u015bcianki, zw\u0142aszcza po wewn\u0119trznej stronie \u0142uku, aby zapewni\u0107 pe\u0142n\u0105 wytrzyma\u0142o\u015b\u0107 na ci\u015bnienie wewn\u0119trzne.<\/p><\/div><\/div><\/div><div class=\"callout\"><p>W wielu przypadkach potrzebne s\u0105 kolana o w\u0119\u017cszych tolerancjach \u015brednicy gi\u0119cia \u2013 wtedy Siekmann jest w\u0142a\u015bciwym partnerem: nasze procesy produkcyjne pozwalaj\u0105 osi\u0105gn\u0105\u0107 znacznie w\u0119\u017csze tolerancje ni\u017c warto\u015bci normowe. W razie potrzeby zamiast \u00b17&nbsp;mm wg EN 10253-2 produkujemy kolana tak\u017ce z tolerancj\u0105 promienia gi\u0119cia do <strong>\u00b11&nbsp;mm<\/strong>.<\/p><\/div><h3 style=\"margin-top:2.2rem\">Wykonania 2D, 3D i 5D w por\u00f3wnaniu norm<\/h3><p class=\"muted\">Poni\u017csza tabela por\u00f3wnuje promienie gi\u0119cia poszczeg\u00f3lnych wykona\u0144 wed\u0142ug r\u00f3\u017cnych wyda\u0144 norm (dane bez gwarancji). Kolumny \u201eEN 10253-2 2021-11\u201d pokazuj\u0105 ju\u017c <strong>nowe wydanie z 2021 roku<\/strong>; dla EN 10253-4 od pa\u017adziernika 2025 roku obowi\u0105zuje <strong>DIN EN 10253-4:2025-10<\/strong> z ponownie zmienionymi promieniami gi\u0119cia \u2013 <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">ch\u0119tnie doradzimy<\/a>.<\/p><div class=\"col-filter-bar\" role=\"group\"><button type=\"button\" class=\"tab-btn sm active\" aria-pressed=\"true\" data-cols=\"all\">Wszystkie promienie<\/button><button type=\"button\" class=\"tab-btn sm\" aria-pressed=\"false\" data-cols=\"2d\">Tylko 2D<\/button><button type=\"button\" class=\"tab-btn sm\" aria-pressed=\"false\" data-cols=\"3d\">Tylko 3D<\/button><button type=\"button\" class=\"tab-btn sm\" aria-pressed=\"false\" data-cols=\"5d\">Tylko 5D<\/button><\/div><p class=\"swipe-hint\" aria-hidden=\"true\">Przesu\u0144 tabel\u0119 w bok \u2192<\/p><div class=\"table-scroll tall\" tabindex=\"0\" aria-label=\"Tabela por\u00f3wnawcza wykona\u0144 2D, 3D, 5D wed\u0142ug wyda\u0144 norm\"><table id=\"skr-bau-table\"><caption style=\"position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)\">Promienie gi\u0119cia wykona\u0144 2D, 3D i 5D wg EN 10253-2 (2021 i 2008) oraz EN 10253-4 (2008), dane w mm<\/caption><thead><tr><th scope=\"col\">\u015ar. zewn.<br>mm<\/th><th scope=\"col\">2D<br>EN 10253-2:2021<\/th><th scope=\"col\">2D<br>EN 10253-2:2008<\/th><th scope=\"col\">2D<br>EN 10253-4:2008<\/th><th scope=\"col\">3D<br>EN 10253-2:2021<\/th><th scope=\"col\">3D<br>EN 10253-2:2008<\/th><th scope=\"col\">3D<br>EN 10253-4:2008<\/th><th scope=\"col\">5D<br>EN 10253-2:2021<\/th><th scope=\"col\">5D<br>EN 10253-2:2008<\/th><th scope=\"col\">5D<br>EN 10253-4:2008<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">17,2<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">20,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">21,3<\/th><td>17,5<\/td><td>25,0<\/td><td>25,0<\/td><td>28,0<\/td><td>38,0<\/td><td>28,0<\/td><td>42,5<\/td><td>42,5<\/td><td>45,0<\/td><\/tr><tr><th scope=\"row\">25,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>27,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">26,9<\/th><td>25,0<\/td><td>25,0<\/td><td>25,0<\/td><td>29,0<\/td><td>38,0<\/td><td>29,0<\/td><td>57,5<\/td><td>57,5<\/td><td>57,0<\/td><\/tr><tr><th scope=\"row\">30,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">31,8<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>35,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">33,7<\/th><td>25,0<\/td><td>25,0<\/td><td>28,0<\/td><td>38,0<\/td><td>38,0<\/td><td>38,0<\/td><td>72,5<\/td><td>72,5<\/td><td>72,0<\/td><\/tr><tr><th scope=\"row\">35,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">38,0<\/th><td>32,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>45,0<\/td><td>45,0<\/td><td>\u2013<\/td><td>82,5<\/td><td>82,5<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">42,4<\/th><td>32,0<\/td><td>32,0<\/td><td>32,0<\/td><td>48,0<\/td><td>48,0<\/td><td>48,0<\/td><td>92,5<\/td><td>92,5<\/td><td>93,0<\/td><\/tr><tr><th scope=\"row\">44,5<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">48,3<\/th><td>38,0<\/td><td>38,0<\/td><td>38,0<\/td><td>57,0<\/td><td>57,0<\/td><td>57,0<\/td><td>107,5<\/td><td>109,5<\/td><td>108,0<\/td><\/tr><tr><th scope=\"row\">51,0<\/th><td>45,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>63,0<\/td><td>63,0<\/td><td>\u2013<\/td><td>115,0<\/td><td>122,5<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">54,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">57,0<\/th><td>52,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>72,0<\/td><td>72,0<\/td><td>\u2013<\/td><td>127,5<\/td><td>130,0<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">60,3<\/th><td>51,0<\/td><td>51,0<\/td><td>51,0<\/td><td>76,0<\/td><td>76,0<\/td><td>76,0<\/td><td>135,0<\/td><td>137,5<\/td><td>135,0<\/td><\/tr><tr><th scope=\"row\">63,5<\/th><td>57,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>82,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>142,5<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">70,0<\/th><td>65,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>92,0<\/td><td>92,0<\/td><td>\u2013<\/td><td>160,0<\/td><td>160,0<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">76,1<\/th><td>63,0<\/td><td>63,0<\/td><td>63,0<\/td><td>95,0<\/td><td>95,0<\/td><td>95,0<\/td><td>175,0<\/td><td>175,0<\/td><td>175,0<\/td><\/tr><tr><th scope=\"row\">82,5<\/th><td>77,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>107,5<\/td><td>\u2013<\/td><td>\u2013<\/td><td>190,0<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">88,9<\/th><td>76,0<\/td><td>76,0<\/td><td>76,0<\/td><td>114,0<\/td><td>114,0<\/td><td>114,0<\/td><td>205,0<\/td><td>207,5<\/td><td>205,0<\/td><\/tr><tr><th scope=\"row\">95,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">101,6<\/th><td>95,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>133,0<\/td><td>133,0<\/td><td>\u2013<\/td><td>237,5<\/td><td>235,0<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">108,0<\/th><td>100,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>142,5<\/td><td>142,5<\/td><td>\u2013<\/td><td>253,0<\/td><td>253,0<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">114,3<\/th><td>102,0<\/td><td>102,0<\/td><td>102,0<\/td><td>152,0<\/td><td>152,0<\/td><td>152,0<\/td><td>270,0<\/td><td>270,0<\/td><td>270,0<\/td><\/tr><tr><th scope=\"row\">121,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">127,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>175,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">133,0<\/th><td>125,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>181,0<\/td><td>181,0<\/td><td>\u2013<\/td><td>312,5<\/td><td>311,5<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">139,7<\/th><td>127,0<\/td><td>127,0<\/td><td>127,0<\/td><td>190,0<\/td><td>190,0<\/td><td>190,0<\/td><td>330,0<\/td><td>330,0<\/td><td>330,0<\/td><\/tr><tr><th scope=\"row\">146,0<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>&#8211;<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">152,4<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>215,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">159,0<\/th><td>150,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>216,0<\/td><td>216,0<\/td><td>\u2013<\/td><td>375,0<\/td><td>375,0<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">165,1<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">168,3<\/th><td>152,0<\/td><td>152,0<\/td><td>152,0<\/td><td>229,0<\/td><td>229,0<\/td><td>229,0<\/td><td>390,0<\/td><td>390,0<\/td><td>390,0<\/td><\/tr><tr><th scope=\"row\">177,8<\/th><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>250,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">193,7<\/th><td>180,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>270,0<\/td><td>270,0<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><th scope=\"row\">219,1<\/th><td>203,0<\/td><td>203,0<\/td><td>203,0<\/td><td>305,0<\/td><td>305,0<\/td><td>305,0<\/td><td>510,0<\/td><td>515,0<\/td><td>510,0<\/td><\/tr><\/tbody><\/table><\/div><\/div><\/section><section id=\"biegeradius\"><span id=\"biegedurchmesser\"><\/span><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Promienie gi\u0119cia<\/p><h2>Jakie promienie gi\u0119cia oferuje Siekmann?<\/h2><p class=\"lead\">Produkujemy kolana tak\u017ce poza standardowymi promieniami 2D, 3D i 5D. Bogate portfolio narz\u0119dzi pozwala nam wykona\u0107 wiele wymiar\u00f3w specjalnych do \u015brednicy zewn\u0119trznej 219&nbsp;mm. Poni\u017csza tabela zawiera wszystkie promienie gi\u0119cia, z kt\u00f3rymi ju\u017c produkowali\u015bmy kolana.<\/p><div class=\"search\"><label for=\"skr-rad-search\">Szukaj \u015brednicy zewn\u0119trznej<\/label><input type=\"search\" id=\"skr-rad-search\" placeholder=\"np. 60,3\" inputmode=\"decimal\" autocomplete=\"off\"><span class=\"count\" id=\"skr-rad-count\" role=\"status\" aria-live=\"polite\"><\/span><\/div><div class=\"table-scroll tall\" tabindex=\"0\" aria-label=\"Tabela dost\u0119pnych promieni gi\u0119cia wed\u0142ug \u015brednicy zewn\u0119trznej\"><table id=\"skr-rad-table\"><caption style=\"position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)\">Promienie gi\u0119cia ju\u017c wyprodukowane, wed\u0142ug \u015brednicy zewn\u0119trznej, dane w mm. Promienie oznaczone * mo\u017cna wykona\u0107 tylko w 90\u00b0.<\/caption><thead><tr><th scope=\"col\">\u015arednica zewn\u0119trzna<br>mm<\/th><th scope=\"col\">Promie\u0144 gi\u0119cia R<br>mm<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">10<\/th><td>20<\/td><\/tr><tr><th scope=\"row\">14<\/th><td>20<\/td><\/tr><tr><th scope=\"row\">16<\/th><td>16<\/td><\/tr><tr><th scope=\"row\">18<\/th><td>21<\/td><\/tr><tr><th scope=\"row\">20<\/th><td>16 \u2013 25 \u2013 26,5<\/td><\/tr><tr><th scope=\"row\">21,3<\/th><td>17,5 \u2013 19,5 \u2013 25 \u2013 27,5 \u2013 28 \u2013 38 \u2013 42,5 \u2013 43,5 \u2013 150<\/td><\/tr><tr><th scope=\"row\">22<\/th><td>38 \u2013 45 \u2013 110<\/td><\/tr><tr><th scope=\"row\">25<\/th><td>21 \u2013 25 \u2013 27,5 \u2013 30 \u2013 34 \u2013 44 \u2013 45 \u2013 53 \u2013 60 \u2013 90<\/td><\/tr><tr><th scope=\"row\">26,9<\/th><td>24 \u2013 25 \u2013 25,5 \u2013 28,75 \u2013 29 \u2013 30 \u2013 32 \u2013 34 \u2013 38 \u2013 39 \u2013 40 \u2013 42,5 \u2013 47,5 \u2013 50 \u2013 52,5 \u2013 57,5 \u2013 58,5 \u2013 67,5 \u2013 70 \u2013 85 \u2013 100 \u2013 190<\/td><\/tr><tr><th scope=\"row\">28<\/th><td>28,5 \u2013 32,5 \u2013 33,5 \u2013 35 \u2013 42 \u2013 48<\/td><\/tr><tr><th scope=\"row\">30<\/th><td>25 \u2013 29 \u2013 33,5 \u2013 34 \u2013 35 \u2013 37,5 \u2013 45 \u2013 50 \u2013 55 \u2013 62,5 \u2013 68<\/td><\/tr><tr><th scope=\"row\">31,8<\/th><td>24 \u2013 25 \u2013 27,5 \u2013 30 \u2013 32,5 \u2013 35 \u2013 35,5 \u2013 36,5 \u2013 38 \u2013 39 \u2013 40 \u2013 45 \u2013 50 \u2013 55 \u2013 60 \u2013 63,5 \u2013 67,5 \u2013 80 \u2013 100 \u2013 105 \u2013 112,5<\/td><\/tr><tr><th scope=\"row\">32<\/th><td>25 \u2013 28 \u2013 32,5<\/td><\/tr><tr><th scope=\"row\">33,7<\/th><td>22,5 \u2013 25 \u2013 26,5 \u2013 28 \u2013 30 \u2013 31,5 \u2013 35 \u2013 37,5 \u2013 38 \u2013 39,5 \u2013 40 \u2013 45 \u2013 50 \u2013 60 \u2013 72,5 \u2013 125 \u2013 135 \u2013 240<\/td><\/tr><tr><th scope=\"row\">35<\/th><td>25,5 \u2013 38 \u2013 45 \u2013 45 \u2013 46,5 \u2013 60 \u2013 75 \u2013 100<\/td><\/tr><tr><th scope=\"row\">38<\/th><td>25 \u2013 27 \u2013 27,5 \u2013 29,5 \u2013 30 \u2013 32 \u2013 32,5 \u2013 35 \u2013 37,5 \u2013 37,75 \u2013 38 \u2013 38,5 \u2013 39,5 \u2013 40 \u2013 40,5 \u2013 42,5 \u2013 45 \u2013 45,5 \u2013 46,5 \u2013 47,5 \u2013 48 \u2013 50 \u2013 51,3 \u2013 55 \u2013 57 \u2013 57,5 \u2013 59 \u2013 60 \u2013 65 \u2013 66,5 \u2013 70 \u2013 75 \u2013 80 \u2013 82,5 \u2013 83 \u2013 85 \u2013 93 \u2013 99 \u2013 113 \u2013 145 \u2013 190<\/td><\/tr><tr><th scope=\"row\">40<\/th><td>47,5 \u2013 51,5 \u2013 55 \u2013 185<\/td><\/tr><tr><th scope=\"row\">42,4<\/th><td>30 \u2013 31 \u2013 32 \u2013 37,5 \u2013 38,5 \u2013 42,5 \u2013 45 \u2013 46 \u2013 48 \u2013 49 \u2013 50 \u2013 57 \u2013 63 \u2013 65 \u2013 70 \u2013 72,5 \u2013 75 \u2013 80 \u2013 92,5 \u2013 93,5 \u2013 185<\/td><\/tr><tr><th scope=\"row\">44,5<\/th><td>34 \u2013 35 \u2013 40 \u2013 42,25 \u2013 45 \u2013 50 \u2013 51 \u2013 52,5 \u2013 53,5 \u2013 55 \u2013 55,5 \u2013 57,5 \u2013 70 \u2013 70,5 \u2013 80 \u2013 97,5 \u2013 99,5 \u2013 136<\/td><\/tr><tr><th scope=\"row\">48,3<\/th><td>38 \u2013 39 \u2013 40 \u2013 42,5 \u2013 45,5 \u2013 48 \u2013 50 \u2013 51 \u2013 57 \u2013 60 \u2013 75 \u2013 76,2 \u2013 80 \u2013 85 \u2013 100 \u2013 107,5 \u2013 109,5 \u2013 112,5 \u2013 115 \u2013 135 \u2013 249<\/td><\/tr><tr><th scope=\"row\">51<\/th><td>32,5 \u2013 38 \u2013 45 \u2013 46,5 \u2013 47,5 \u2013 51 \u2013 52,5 \u2013 55 \u2013 57 \u2013 61 \u2013 63,5 \u2013 65 \u2013 67,5 \u2013 69,85 \u2013 76,2 \u2013 80 \u2013 92,5 \u2013 115 \u2013 122,5<\/td><\/tr><tr><th scope=\"row\">54<\/th><td>50 \u2013 54 \u2013 72,5 \u2013 97,5<\/td><\/tr><tr><th scope=\"row\">57<\/th><td>42,5 \u2013 52,5 \u2013 53,5 \u2013 57,5 \u2013 66 \u2013 72 \u2013 75 \u2013 77,5 \u2013 84 \u2013 85 \u2013 90 \u2013 92,5 \u2013 102,5 \u2013 104 \u2013 112,5 \u2013 127,5<\/td><\/tr><tr><th scope=\"row\">60,3<\/th><td>38,1 \u2013 40 \u2013 48,75 \u2013 51 \u2013 55 \u2013 57,15 \u2013 60 \u2013 66 \u2013 75 \u2013 76 \u2013 77,5 \u2013 78,5 \u2013 84 \u2013 90 \u2013 95 \u2013 100 \u2013 101,5 \u2013 107,5 \u2013 109 \u2013 117 \u2013 122 \u2013 135 \u2013 140 \u2013 240 \u2013 250 \u2013 350 \u2013 400<\/td><\/tr><tr><th scope=\"row\">63,5<\/th><td>41,25 \u2013 46,5 \u2013 55 \u2013 57,5 \u2013 59 \u2013 64 \u2013 77,5 \u2013 82,5 \u2013 115 \u2013 142,5 \u2013 210<\/td><\/tr><tr><th scope=\"row\">70<\/th><td>50 \u2013 55 \u2013 62,5 \u2013 65 \u2013 75 \u2013 80,5 \u2013 92 \u2013 94 \u2013 95 \u2013 127,5 \u2013 161,5 \u2013 165<\/td><\/tr><tr><th scope=\"row\">73<\/th><td>63,5 \u2013 77,5<\/td><\/tr><tr><th scope=\"row\">75<\/th><td>95<\/td><\/tr><tr><th scope=\"row\">76,1<\/th><td>63 \u2013 70 \u2013 77 \u2013 87,5 \u2013 88 \u2013 95 \u2013 97 \u2013 95 \u2013 105 \u2013 137 \u2013 140 \u2013 140,5 \u2013 150 \u2013 175<\/td><\/tr><tr><th scope=\"row\">80<\/th><td>78,5 \u2013 109 \u2013 160<\/td><\/tr><tr><th scope=\"row\">82,5<\/th><td>63,5 \u2013 77,5 \u2013 79 \u2013 80 \u2013 107,5 \u2013 114,5 \u2013 175 \u2013 190<\/td><\/tr><tr><th scope=\"row\">85<\/th><td>116,5<\/td><\/tr><tr><th scope=\"row\">88,9<\/th><td>57,5 \u2013 58 \u2013 76 \u2013 78 \u2013 80 \u2013 82,5 \u2013 87,5 \u2013 114 \u2013 162,5 \u2013 165 \u2013 185 \u2013 205<\/td><\/tr><tr><th scope=\"row\">100<\/th><td>133<\/td><\/tr><tr><th scope=\"row\">101,6<\/th><td>76 \u2013 89 \u2013 95 \u2013 97 \u2013 133,5 \u2013 150 \u2013 180 \u2013 190 \u2013 237,5<\/td><\/tr><tr><th scope=\"row\">102<\/th><td>126 \u2013 250<\/td><\/tr><tr><th scope=\"row\">106<\/th><td>144,5<\/td><\/tr><tr><th scope=\"row\">108<\/th><td>100 \u2013 101,5 \u2013 142,5 \u2013 200 \u2013 250 \u2013 252,5<\/td><\/tr><tr><th scope=\"row\">114,3<\/th><td>102 \u2013 105 \u2013 116 \u2013 135 \u2013 152 \u2013 220 \u2013 270<\/td><\/tr><tr><th scope=\"row\">121<\/th><td>112,5 \u2013 120 \u2013 152 \u2013 170 \u2013 175 \u2013 282<\/td><\/tr><tr><th scope=\"row\">127<\/th><td>107,5 \u2013 117,5 \u2013 138,5 \u2013 175 \u2013 235 \u2013 300<\/td><\/tr><tr><th scope=\"row\">133<\/th><td>125 \u2013 181 \u2013 250 \u2013 312,5<\/td><\/tr><tr><th scope=\"row\">139,7<\/th><td>127 \u2013 132,5* \u2013 190 \u2013 250* \u2013 270* \u2013 330*<\/td><\/tr><tr><th scope=\"row\">152<\/th><td>142,5* \u2013 215*<\/td><\/tr><tr><th scope=\"row\">159<\/th><td>150* \u2013 216*<\/td><\/tr><tr><th scope=\"row\">168,3<\/th><td>152* \u2013 229* \u2013 390*<\/td><\/tr><tr><th scope=\"row\">177,8<\/th><td>250*<\/td><\/tr><tr><th scope=\"row\">193,7<\/th><td>270*<\/td><\/tr><tr><th scope=\"row\">219,1<\/th><td>203* \u2013 305*<\/td><\/tr><\/tbody><\/table><\/div><p class=\"muted\" style=\"margin-top:.8rem\">* mo\u017cliwe tylko w 90\u00b0<\/p><div class=\"inline-cta\"><p><strong>Brak Pa\u0144stwa promienia gi\u0119cia?<\/strong> Prosimy pyta\u0107 tak\u017ce o inne promienie.<\/p><a class=\"btn btn-blau\" href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">Zapytaj o promie\u0144 \u2192<\/a><\/div><div class=\"gallery\"><figure><img src=\"\/wp-content\/uploads\/2021\/10\/Rohrbogen_07.jpg\" alt=\"Bezszwowe kolano stalowe z obrobionymi ko\u0144cami do spawania\" width=\"800\" height=\"533\" loading=\"lazy\" decoding=\"async\"><figcaption>Obrobione ko\u0144ce do spawania<\/figcaption><\/figure><figure><img src=\"\/wp-content\/uploads\/2021\/10\/Rohrbogen_05.jpg\" alt=\"Kolano rurowe z ukosowaniem do spawania orbitalnego\" width=\"800\" height=\"533\" loading=\"lazy\" decoding=\"async\"><figcaption>Ukos orbitalny<\/figcaption><\/figure><figure><img src=\"\/wp-content\/uploads\/2021\/10\/Rohrbogen_01.jpg\" alt=\"Bezszwowe kolana rurowe w r\u00f3\u017cnych wymiarach\" width=\"800\" height=\"533\" loading=\"lazy\" decoding=\"async\"><figcaption>R\u00f3\u017cne wymiary<\/figcaption><\/figure><\/div><\/div><\/section><section id=\"siekmann\" class=\"alt\"><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Firma<\/p><h2>Siekmann GmbH &amp; Co. KG \u2013 producent kolan specjalnych<\/h2><div class=\"grid-2 top\"><div><p class=\"lead\">Za\u0142o\u017cona w 1907 roku jako ku\u017ania, od 1940 roku produkujemy kolana rurowe \u2013 a dzi\u015b specjalizujemy si\u0119 w <strong>kolanach specjalnych z rur bezszwowych<\/strong>.<\/p><p>Nowo opracowane procesy produkcyjne, do\u015bwiadczeni pracownicy i sta\u0142a kontrola na wszystkich etapach produkcji gwarantuj\u0105 najwy\u017cszy standard jako\u015bci.<\/p><ul class=\"check-list\"><li>Wymiary specjalne \u2013 tak\u017ce poza wymiarami standardowymi<\/li><li>Produkcja kolan grubo\u015bciennych<\/li><li>Produkcja tak\u017ce ma\u0142ych serii<\/li><li>Du\u017cy wyb\u00f3r przetwarzanych materia\u0142\u00f3w \u2013 stal w\u0119glowa \/ stal nierdzewna<\/li><li>Bardzo kr\u00f3tkie terminy dostaw<\/li><li>Produkcja kolan z w\u0105skimi tolerancjami<\/li><\/ul><p>Naszym celem jest dostarczanie kolan rurowych szybko, niezawodnie i w najwy\u017cszej jako\u015bci. Du\u017cy wyb\u00f3r narz\u0119dzi pozwala nam wykona\u0107 niemal ka\u017cde kolano w zakresie \u015brednic zewn\u0119trznych od 13,7&nbsp;mm do 219,1&nbsp;mm \u2013 zw\u0142aszcza grubo\u015bcienne.<\/p><p>Zapraszamy do <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">kontaktu<\/a> \u2013 zapytania prosimy kierowa\u0107 przez nasz <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">formularz zapytania<\/a>. Osoby kontaktowe w dziale sprzeda\u017cy znajd\u0105 Pa\u0144stwo na <a href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">stronie kontaktowej<\/a>.<\/p><\/div><div><h3>Historia<\/h3><ol class=\"timeline\"><li><b>1907<\/b><span>Za\u0142o\u017cenie jako wiejska ku\u017ania \u2013 odkuwki dla miejscowego rolnictwa<\/span><\/li><li><b>1928<\/b><span>Pierwsze produkty dla bran\u017cy grzewczej<\/span><\/li><li><b>1940<\/b><span>Udana produkcja pierwszych kolan rurowych<\/span><\/li><li><b>1957<\/b><span>Nowy zak\u0142ad produkcyjny w Lohne<\/span><\/li><li><b>1970<\/b><span>Pierwsze pr\u00f3by z kolanami grubo\u015bciennymi<\/span><\/li><li><b>1992<\/b><span>Przestawienie produkcji na grubo\u015bcienne kolana specjalne \u2013 nowo opracowane procesy produkcyjne jako podstawa dzisiejszego sukcesu<\/span><\/li><li><b>dzi\u015b<\/b><span>Zakup nowych dzia\u0142ek i budowa nowej hali produkcyjnej<\/span><\/li><\/ol><\/div><\/div><\/div><\/section><section id=\"referenzen\"><div class=\"wrap reveal\"><p class=\"eyebrow\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/05\/rohrbogen_apple.png\" alt=\"\" width=\"18\" height=\"18\" loading=\"lazy\">Referencje<\/p><h2>Stosowane na ca\u0142ym \u015bwiecie<\/h2><p class=\"lead\">Nasze kolana rurowe pracuj\u0105 na ca\u0142ym \u015bwiecie \u2013 m.in. u nast\u0119puj\u0105cych klient\u00f3w:<\/p><\/div><div class=\"marquee\"><ul class=\"marquee-track\"><li>Total S.A.<\/li><li>Siemens<\/li><li>Hitachi Power<\/li><li>Alstom Power<\/li><li>Exxon Mobil Production<\/li><li>Buhlmann Rohr-Fittings-Stahlhandel<\/li><li>STAROFIT Klose GmbH &amp; Co. KG<\/li><li>ThyssenKrupp Schulte GmbH<\/li><li>RFF Rohr Flansch Fittings Handels GmbH<\/li><li>Oschatz GmbH<\/li><li>BHR Engineering &amp; Construction<\/li><li>Piping-Service Steuer Handelsges. mbH<\/li><li aria-hidden=\"true\">Total S.A.<\/li><li aria-hidden=\"true\">Siemens<\/li><li aria-hidden=\"true\">Hitachi Power<\/li><li aria-hidden=\"true\">Alstom Power<\/li><li aria-hidden=\"true\">Exxon Mobil Production<\/li><li aria-hidden=\"true\">Buhlmann Rohr-Fittings-Stahlhandel<\/li><li aria-hidden=\"true\">STAROFIT Klose GmbH &amp; Co. KG<\/li><li aria-hidden=\"true\">ThyssenKrupp Schulte GmbH<\/li><li aria-hidden=\"true\">RFF Rohr Flansch Fittings Handels GmbH<\/li><li aria-hidden=\"true\">Oschatz GmbH<\/li><li aria-hidden=\"true\">BHR Engineering &amp; Construction<\/li><li aria-hidden=\"true\">Piping-Service Steuer Handelsges. mbH<\/li><\/ul><\/div><\/section><section style=\"padding-top:0\"><div class=\"wrap reveal\"><div class=\"cta\"><h2>Zapytaj o kolana rurowe<\/h2><p>Prosimy przes\u0142a\u0107 wymiar, materia\u0142, norm\u0119 i liczb\u0119 sztuk \u2013 szybko odpowiemy z ofert\u0105.<\/p><div class=\"btns\"><a class=\"btn btn-white\" href=\"https:\/\/www.siekmann-rohrbogen.de\/pl\/kontakt\/\">Do formularza zapytania \u2192<\/a><a class=\"btn btn-ghost\" href=\"tel:+49522349600\">+49 5223 4960-0<\/a><\/div><\/div><\/div><\/section><\/div>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"pl\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Czym jest kolano rurowe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Kolano rurowe to kszta\u0142tka umo\u017cliwiaj\u0105ca zmian\u0119 kierunku w instalacjach rurowych. Kolana r\u00f3\u017cni\u0105 si\u0119 \u015brednic\u0105 zewn\u0119trzn\u0105, grubo\u015bci\u0105 \u015bcianki, promieniem gi\u0119cia, k\u0105tem i materia\u0142em. Produkuje si\u0119 je ze spawanych p\u00f3\u0142skorup lub z rur bezszwowych, a stosuje m.in. w budowie elektrowni, budowie maszyn, produkcji wymiennik\u00f3w ciep\u0142a i budowie instalacji.\"}}, {\"@type\": \"Question\", \"name\": \"Jakie normy obowi\u0105zuj\u0105 dla kolan rurowych?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Decyduj\u0105ce s\u0105 EN 10253-2 (stale niestopowe i stopowe ferrytyczne, aktualne wydanie DIN EN 10253-2:2026-07, EN 10253-2:2021+A1:2025) i EN 10253-4 (stale austenityczne i duplex, aktualne wydanie DIN EN 10253-4:2025-10). Dawna niemiecka norma DIN 2605 zosta\u0142a zast\u0105piona przez EN 10253. Mi\u0119dzynarodowo rozpowszechniona jest ameryka\u0144ska ASME B16.9 z wymiarami w calach i szeregach Schedule.\"}}, {\"@type\": \"Question\", \"name\": \"Jakie promienie gi\u0119cia oferuje Siekmann?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Siekmann produkuje kolana w wykonaniach standardowych 2D, 3D i 5D oraz w wielu promieniach specjalnych pomi\u0119dzy nimi \u2013 do \u015brednicy zewn\u0119trznej 219,1 mm. Na \u017cyczenie z tolerancj\u0105 promienia gi\u0119cia do \u00b11 mm (norma: \u00b17 mm wg EN 10253-2).\"}}, {\"@type\": \"Question\", \"name\": \"Jaka jest r\u00f3\u017cnica mi\u0119dzy kolanami typu A i typu B?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Typ A (obni\u017cony wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci) ma na ca\u0142ym \u0142uku tak\u0105 sam\u0105 grubo\u015b\u0107 \u015bcianki jak na ko\u0144cach do spawania; wytrzyma\u0142o\u015b\u0107 na ci\u015bnienie wewn\u0119trzne jest ni\u017csza ni\u017c w przypadku rury o tych samych wymiarach. Typ B (pe\u0142ny wsp\u00f3\u0142czynnik wytrzyma\u0142o\u015bci) ma zwi\u0119kszon\u0105 grubo\u015b\u0107 \u015bcianki po wewn\u0119trznej stronie \u0142uku i osi\u0105ga pe\u0142n\u0105 wytrzyma\u0142o\u015b\u0107 rury na ci\u015bnienie wewn\u0119trzne. Przyk\u0142ad 76,1 \u00d7 12,5 mm (2D): typ A wewn\u0105trz 11,0 mm, typ B wewn\u0105trz 16,8 mm.\"}}, {\"@type\": \"Question\", \"name\": \"Do jakiej grubo\u015bci \u015bcianki Siekmann produkuje kolana?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Siekmann produkuje kolana bezszwowe o grubo\u015bci \u015bcianki od 1 mm do 55 mm (zale\u017cnie od \u015brednicy zewn\u0119trznej) w zakresie \u015brednic zewn\u0119trznych od 13,7 mm do 219,1 mm \u2013 tak\u017ce w ma\u0142ych seriach lub jako pojedyncze sztuki.\"}}]}<\/script>\n<script data-no-optimize=\"1\" data-no-defer=\"1\" data-no-minify=\"1\" data-cfasync=\"false\" nowprocket>(function(){var 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