{"product_id":"contre-ecrou-fonte-noire","title":"Contraporca ferro fundido preto","description":"\u003cul\u003e\n\u003cli\u003eMaterial : Ferro maleável preto\u003c\/li\u003e\n\u003cli\u003eCor : Cinzento \/ Cinzento escuro\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA contraporca em ferro fundido preto (ref. 312) é uma porca hexagonal vazada que se enrosca numa rosca macho para \u003cstrong\u003ebloquear uma conexão em posição\u003c\/strong\u003e. Impede o afrouxamento acidental causado por vibrações ou tensões térmicas.\u003c\/p\u003e\n\n\u003ch2\u003ePara que serve uma contraporca?\u003c\/h2\u003e\n\u003cp\u003eEm canalização, algumas conexões (niple, extensão, válvula…) devem ser imobilizadas após o aperto. A contraporca enrosca-se contra a conexão fêmea onde está a rosca macho: as duas peças bloqueiam-se mutuamente. Este princípio de \u003cstrong\u003eduplo bloqueio\u003c\/strong\u003e é indispensável em instalações sujeitas a vibrações ou ciclos térmicos.\u003c\/p\u003e\n\u003cp\u003eNa decoração industrial, a contraporca também pode servir como \u003cstrong\u003eelemento estético\u003c\/strong\u003e ou batente num tubo roscado.\u003c\/p\u003e\n\n\u003ch2\u003eCaracterísticas\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eNorma :\u003c\/strong\u003e Fabricação conforme \u003cstrong\u003eEN 10242\u003c\/strong\u003e e \u003cstrong\u003eISO 49\u003c\/strong\u003e. Ferro maleável EN-GJMW-400-5 (segundo EN 1562).\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRosca :\u003c\/strong\u003e Rosca fêmea cilíndrica (Rp), conforme ISO 7-1 (BSP).\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFiabilidade :\u003c\/strong\u003e 100% testados em estanquicidade.\u003c\/li\u003e\n\u003cli\u003eMaterial : ferro maleável preto\u003c\/li\u003e\n\u003cli\u003eCor : \u003cstrong\u003ecinzento escuro\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCondições de utilização\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTemperatura máx. :\u003c\/strong\u003e 155°C (água).\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompatibilidade :\u003c\/strong\u003e Água potável, águas residuais, gás, vapor, líquidos não corrosivos.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDimensões\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;margin-bottom:20px;\"\u003e\n\u003cdiv style=\"text-align:center;\"\u003e\u003cimg style=\"float:none;\" alt=\"Desenho técnico contraporca ferro fundido preto — dimensões a, e, s\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2439\/6099\/files\/contre-ecrou-fonte-310-dimensions.jpg?v=1772729860\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003csmall\u003eDeslize a tabela horizontalmente para ver todas as medidas.\u003c\/small\u003e\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;text-align:center;font-size:0.85em;min-width:550px;\"\u003e\n\u003cthead style=\"background-color:#333;color:#fff;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;\"\u003eTamanho (polegadas)\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;\"\u003eDN\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;\"\u003eØ int×ext (mm)\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;background-color:#444;\"\u003ea (mm)\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;background-color:#444;\"\u003ee aprox. (mm)\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;background-color:#444;\"\u003es (mm)\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;background-color:#f4f4f4;color:#333;\"\u003ePeso (kg)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003e1\/4\"\u003c\/td\u003e\u003ctd\u003eDN8\u003c\/td\u003e\u003ctd\u003e8×13\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e6\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e22\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e19\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,013\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f9f9f9;\"\u003e\u003ctd\u003e3\/8\"\u003c\/td\u003e\u003ctd\u003eDN10\u003c\/td\u003e\u003ctd\u003e12×17\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e8\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e28\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e24\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,021\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e1\/2\"\u003c\/td\u003e\u003ctd\u003eDN15\u003c\/td\u003e\u003ctd\u003e15×21\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e8\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e37\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e32\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,028\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f9f9f9;\"\u003e\u003ctd\u003e3\/4\"\u003c\/td\u003e\u003ctd\u003eDN20\u003c\/td\u003e\u003ctd\u003e20×27\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e9\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e42\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e36\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,033\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e1\"\u003c\/td\u003e\u003ctd\u003eDN25\u003c\/td\u003e\u003ctd\u003e26×34\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e10\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e53\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e46\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,065\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f9f9f9;\"\u003e\u003ctd\u003e1\"1\/4\u003c\/td\u003e\u003ctd\u003eDN32\u003c\/td\u003e\u003ctd\u003e33×42\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e11\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e62\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e54\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,095\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e1\"1\/2\u003c\/td\u003e\u003ctd\u003eDN40\u003c\/td\u003e\u003ctd\u003e40×49\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e12\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e68\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e60\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,110\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f9f9f9;\"\u003e\u003ctd\u003e2\"\u003c\/td\u003e\u003ctd\u003eDN50\u003c\/td\u003e\u003ctd\u003e50×60\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e13\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e86\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e75\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,170\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e2\"1\/2\u003c\/td\u003e\u003ctd\u003eDN65\u003c\/td\u003e\u003ctd\u003e65×76\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e19\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e110\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e95\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,364\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f9f9f9;\"\u003e\u003ctd\u003e3\"\u003c\/td\u003e\u003ctd\u003eDN80\u003c\/td\u003e\u003ctd\u003e80×90\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e22\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e120\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e105\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,421\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e4\"\u003c\/td\u003e\u003ctd\u003eDN100\u003c\/td\u003e\u003ctd\u003e102×115\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e—\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e—\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u003cstrong\u003e—\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e0,960\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003e\u003cem\u003ea = altura. e = distância entre ângulos. s = entre faces planas.\u003c\/em\u003e\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eProdutos relacionados\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProdutos compatíveis :\u003c\/strong\u003e \u003ca href=\"\/collections\/tubos-aco-preto-1\"\u003eTubos aço preto\u003c\/a\u003e · \u003ca href=\"\/collections\/conexoes-fundido-preta\"\u003eConexões ferro fundido preto\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuias úteis :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/blogs\/tutoriais\/fazer-prateleiras-de-parede-em-conexoes-de-canalizacao\"\u003eFazer prateleiras de parede em conexões\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Home Invasion","offers":[{"title":"1\/4\"","offer_id":53676479643975,"sku":"1003120000800\u002614312008","price":2.57,"currency_code":"EUR","in_stock":true},{"title":"3\/8\"","offer_id":53676479676743,"sku":"1003120001200\u002614312010","price":2.82,"currency_code":"EUR","in_stock":true},{"title":"1\/2\"","offer_id":53676479709511,"sku":"1003120001500\u002614312015","price":1.47,"currency_code":"EUR","in_stock":true},{"title":"3\/4\"","offer_id":53676479742279,"sku":"1003120002000\u002614312020","price":1.84,"currency_code":"EUR","in_stock":true},{"title":"1\"","offer_id":53676479775047,"sku":"1003120002600\u002614312025","price":2.2,"currency_code":"EUR","in_stock":true},{"title":"1\"1\/4","offer_id":53676479807815,"sku":"1003120003300\u002614312032","price":3.43,"currency_code":"EUR","in_stock":true},{"title":"1\"1\/2","offer_id":53676479840583,"sku":"1003120004000\u002614312040","price":3.92,"currency_code":"EUR","in_stock":true},{"title":"2\"","offer_id":53676479873351,"sku":"1003120005000\u002614312050","price":7.83,"currency_code":"EUR","in_stock":true},{"title":"2\"1\/2","offer_id":53676479906119,"sku":"1003120006600\u002614312065","price":14.2,"currency_code":"EUR","in_stock":true},{"title":"3\"","offer_id":53676479938887,"sku":"1003120008000\u002614312080","price":17.38,"currency_code":"EUR","in_stock":true},{"title":"4\"","offer_id":53676479971655,"sku":"1003120010200\u002614312100","price":21.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2439\/6099\/files\/contre-ecrou-plomberie-fonte-noire.jpg?v=1775751777","url":"https:\/\/homeinvasion.pt\/products\/contraporca-ferro-fundido-preto","provider":"Home Invasion","version":"1.0","type":"link"}