{"id":2451,"date":"2024-06-27T16:17:59","date_gmt":"2024-06-27T14:17:59","guid":{"rendered":"https:\/\/jureknawrocki.com\/?p=2451"},"modified":"2026-03-14T08:07:25","modified_gmt":"2026-03-14T07:07:25","slug":"czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego","status":"publish","type":"post","link":"https:\/\/jureknawrocki.com\/en\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/","title":{"rendered":"Graphite purity and flange joint tightness"},"content":{"rendered":"<p>This post was written based on SPETECH materials. If anyone has ever had to deal with temperatures above creep, using graphite gaskets contaminated with sulfur and phosphorus leads to the graphite oxidizing in the air, so outside the seal. This process of mass loss is measured in hours, maybe days, so fortunately it is quick, so it can be noticed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"686\" height=\"445\" src=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-1.webp\" alt=\"\" class=\"wp-image-2452\" style=\"width:812px;height:auto\" srcset=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-1.webp 686w, https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-1-480x311.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 686px, 100vw\" \/><\/figure>\n\n\n\n<p>Here, only the gasket reinforcement remains. The graphite has completely disappeared.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"539\" height=\"528\" src=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-2.webp\" alt=\"\" class=\"wp-image-2453\" style=\"width:823px;height:auto\" srcset=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-2.webp 539w, https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-2-480x470.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 539px, 100vw\" \/><\/figure>\n\n\n\n<p>Graphite must be as little contaminated with sulfur and phosphorus as possible. How to test the purity of graphite? This is stated in the standard EN 14772 Flanges and their connections \u2014 Quality assurance control and testing of gaskets in accordance with EN 1514 and EN 12560 series standards.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"389\" src=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-3-1024x389.webp\" alt=\"\" class=\"wp-image-2454\" srcset=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-3-1024x389.webp 1024w, https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-3-980x372.webp 980w, https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-3-480x182.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Ten post zosta\u0142 napisany w oparciu o materia\u0142y firmy SPETECH. Jakby kto\u015b kiedy\u015b mia\u0142 do czynienia z temperaturami powy\u017cej pe\u0142zania, to stosowanie uszczelek z grafitu zanieczyszczonym siark\u0105 i fosforem, prowadzi do utlenienia si\u0119 grafitu w powietrzu, wi\u0119c na zewn\u0105trz przylgi. Ten proces ubytku masy jest liczony w godzinach, no mo\u017ce w dniach, wi\u0119c jest na [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2455,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"<!-- wp:paragraph -->\n<p>Jakby kto\u015b kiedy\u015b mia\u0142 do czynienia z temperaturami powy\u017cej pe\u0142zania, to stosowanie uszczelek z grafitu zanieczyszczonym siark\u0105 i fosforem, prowadzi do utlenienia si\u0119 grafitu w powietrzu, wi\u0119c na zewn\u0105trz przylgi. Ten proces ubytku masy jest liczony w godzinach, no mo\u017ce w dniach, wi\u0119c jest na szcz\u0119\u015bcie szybki, wi\u0119c da si\u0119 go zauwa\u017cy\u0107.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":2452,\"width\":\"812px\",\"height\":\"auto\",\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full is-resized\"><img src=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-1.webp\" alt=\"\" class=\"wp-image-2452\" style=\"width:812px;height:auto\"\/><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>Tutaj zosta\u0142o ju\u017c tylko zbrojenie z uszczelki. Grafit znik\u0142 zupe\u0142nie.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":2453,\"width\":\"823px\",\"height\":\"auto\",\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full is-resized\"><img src=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-2.webp\" alt=\"\" class=\"wp-image-2453\" style=\"width:823px;height:auto\"\/><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>Grafit musi by\u0107 jak najmniej zanieczyszczony siark\u0105 i fosforem. Jak bada\u0107 czysto\u015b\u0107 grafitu ? M\u00f3wi o tym norma EN 14772 Flanges and their connections \u2014 Quality assurance control and testing of gaskets in accordance with EN 1514 and EN 12560 series standards.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":2454,\"sizeSlug\":\"large\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-3-1024x389.webp\" alt=\"\" class=\"wp-image-2454\"\/><\/figure>\n<!-- \/wp:image -->","_et_gb_content_width":"","footnotes":""},"categories":[126,15],"tags":[23],"class_list":["post-2451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologia","category-projekty","tag-rurociagi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego - Jerzy Nawrocki<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jureknawrocki.com\/en\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego - Jerzy Nawrocki\" \/>\n<meta property=\"og:description\" content=\"Ten post zosta\u0142 napisany w oparciu o materia\u0142y firmy SPETECH. Jakby kto\u015b kiedy\u015b mia\u0142 do czynienia z temperaturami powy\u017cej pe\u0142zania, to stosowanie uszczelek z grafitu zanieczyszczonym siark\u0105 i fosforem, prowadzi do utlenienia si\u0119 grafitu w powietrzu, wi\u0119c na zewn\u0105trz przylgi. Ten proces ubytku masy jest liczony w godzinach, no mo\u017ce w dniach, wi\u0119c jest na [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jureknawrocki.com\/en\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/\" \/>\n<meta property=\"og:site_name\" content=\"Jerzy Nawrocki\" \/>\n<meta property=\"article:published_time\" content=\"2024-06-27T14:17:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-14T07:07:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-4.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"2100\" \/>\n\t<meta property=\"og:image:height\" content=\"1125\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Jerzy Nawrocki\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jerzy Nawrocki\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/\"},\"author\":{\"name\":\"Jerzy Nawrocki\",\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/#\\\/schema\\\/person\\\/b2567f392defa8e7698c6813f7930563\"},\"headline\":\"Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego\",\"datePublished\":\"2024-06-27T14:17:59+00:00\",\"dateModified\":\"2026-03-14T07:07:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/\"},\"wordCount\":130,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/jureknawrocki.com\\\/wp-content\\\/uploads\\\/Grafit-4.webp\",\"keywords\":[\"Ruroci\u0105gi\"],\"articleSection\":[\"Instalacje technologiczne\",\"Z \u017cycia rzeczoznawcy\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/\",\"url\":\"https:\\\/\\\/jureknawrocki.com\\\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\\\/\",\"name\":\"Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego - 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Jerzy Nawrocki","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jureknawrocki.com\/en\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/","og_locale":"en_GB","og_type":"article","og_title":"Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego - Jerzy Nawrocki","og_description":"Ten post zosta\u0142 napisany w oparciu o materia\u0142y firmy SPETECH. Jakby kto\u015b kiedy\u015b mia\u0142 do czynienia z temperaturami powy\u017cej pe\u0142zania, to stosowanie uszczelek z grafitu zanieczyszczonym siark\u0105 i fosforem, prowadzi do utlenienia si\u0119 grafitu w powietrzu, wi\u0119c na zewn\u0105trz przylgi. Ten proces ubytku masy jest liczony w godzinach, no mo\u017ce w dniach, wi\u0119c jest na [&hellip;]","og_url":"https:\/\/jureknawrocki.com\/en\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/","og_site_name":"Jerzy Nawrocki","article_published_time":"2024-06-27T14:17:59+00:00","article_modified_time":"2026-03-14T07:07:25+00:00","og_image":[{"width":2100,"height":1125,"url":"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-4.webp","type":"image\/webp"}],"author":"Jerzy Nawrocki","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Jerzy Nawrocki","Estimated reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/#article","isPartOf":{"@id":"https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/"},"author":{"name":"Jerzy Nawrocki","@id":"https:\/\/jureknawrocki.com\/#\/schema\/person\/b2567f392defa8e7698c6813f7930563"},"headline":"Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego","datePublished":"2024-06-27T14:17:59+00:00","dateModified":"2026-03-14T07:07:25+00:00","mainEntityOfPage":{"@id":"https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/"},"wordCount":130,"commentCount":0,"publisher":{"@id":"https:\/\/jureknawrocki.com\/#organization"},"image":{"@id":"https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/#primaryimage"},"thumbnailUrl":"https:\/\/jureknawrocki.com\/wp-content\/uploads\/Grafit-4.webp","keywords":["Ruroci\u0105gi"],"articleSection":["Instalacje technologiczne","Z \u017cycia rzeczoznawcy"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/","url":"https:\/\/jureknawrocki.com\/czystosc-grafitu-a-szczelnosc-polaczenia-kolnierzowego\/","name":"Czysto\u015b\u0107 grafitu a szczelno\u015b\u0107 po\u0142\u0105czenia ko\u0142nierzowego - 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