{"id":5918,"date":"2025-10-10T14:13:59","date_gmt":"2025-10-10T06:13:59","guid":{"rendered":"https:\/\/uniasen.com\/?p=5918"},"modified":"2025-10-23T14:15:19","modified_gmt":"2025-10-23T06:15:19","slug":"what-is-a-pipe-schedule","status":"publish","type":"post","link":"https:\/\/uniasen.com\/fr\/blog\/quest-ce-quun-schema-de-tuyauterie\/","title":{"rendered":"Que signifie \"Schedule\" dans le domaine de la tuyauterie ?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Lorsqu'il s'agit de syst\u00e8mes de canalisations, il est facile de confondre les programmes de canalisations. Il est important de comprendre la terminologie, en particulier pour les ing\u00e9nieurs et les entrepreneurs travaillant sur des projets de construction et des projets industriels. Cela leur permet de s\u00e9lectionner le bon tuyau pour une application sp\u00e9cifique, telle que la manutention \u00e0 haute pression ou le soutien structurel. Vous voulez en savoir plus sur les sch\u00e9mas de tuyauterie ?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le terme <\/span><b><i>\"calendrier de la tuyauterie\"<\/i><\/b><span style=\"font-weight: 400;\"> ou plus pr\u00e9cis\u00e9ment \"<\/span><b><i>SCH\" est<\/i><\/b><span style=\"font-weight: 400;\"> un num\u00e9ro normalis\u00e9 qui indique l'\u00e9paisseur des parois du tuyau. L'\u00e9paisseur de la paroi du tuyau augmente avec le num\u00e9ro de la nomenclature.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bien qu'il existe un certain nombre de programmes de tuyaux, il convient de comprendre ce qu'ils signifient et comment ils peuvent influer sur la qualit\u00e9 et les diff\u00e9rentes cat\u00e9gories de tuyaux.\u00a0<\/span><\/p>\n<h2>Que signifie le terme \"schedule\" dans le domaine de la tuyauterie ?<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5973\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-does-schedule-mean-in-pipe.webp\" alt=\"Qu&#039;est-ce que le terme &quot;schedule&quot; signifie dans le domaine de la tuyauterie ?\" width=\"635\" height=\"476\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-does-schedule-mean-in-pipe.webp 1000w, https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-does-schedule-mean-in-pipe-300x225.webp 300w, https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-does-schedule-mean-in-pipe-768x576.webp 768w, https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-does-schedule-mean-in-pipe-16x12.webp 16w\" sizes=\"auto, (max-width: 635px) 100vw, 635px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">La nomenclature (SCH) est un num\u00e9ro standard attribu\u00e9 par l'American National Standards Institute (ANSI). Il indique l'\u00e9paisseur de la paroi d'un tuyau de taille nominale donn\u00e9e. Le syst\u00e8me de nomenclature a \u00e9t\u00e9 d\u00e9velopp\u00e9 par l'American Society of Mechanical Engineers (ASME) pour simplifier les sp\u00e9cifications. Par exemple, il existe plusieurs num\u00e9ros de nomenclature pour diff\u00e9rents tuyaux, comme la nomenclature 10, <a href=\"https:\/\/uniasen.com\/fr\/blog\/tube-en-acier-schedule-20\/\">Annexe 20<\/a>, <a href=\"https:\/\/uniasen.com\/fr\/blog\/quest-ce-quun-tube-en-acier-schedule-40\/\">Annexe 40<\/a>et ainsi de suite.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les num\u00e9ros de nomenclature 10, 20 et 40 sont sans dimension. Ils ne fournissent aucune information sur le diam\u00e8tre du tuyau ou d'autres param\u00e8tres. Cependant, plus le num\u00e9ro de nomenclature augmente, plus l'\u00e9paisseur du diam\u00e8tre int\u00e9rieur du tuyau augmente.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ce num\u00e9ro normalis\u00e9 permet aux ing\u00e9nieurs et aux entrepreneurs de s\u00e9lectionner un tuyau standard, quel que soit le fabricant.\u00a0<\/span><\/p>\n<h2>Diff\u00e9rents sch\u00e9mas de tuyauterie<\/h2>\n<p><span style=\"font-weight: 400;\">Bien qu'il existe une large gamme de num\u00e9ros de tableaux, les tableaux les plus courants sont les suivants : 5, 10, 20, 40, 80, 100, 120, 140 et 160. Les nomenclatures 40 et 80 sont les plus utilis\u00e9es. Ce syst\u00e8me facilite grandement la conception, l'approvisionnement et l'installation des tuyaux dans tous les secteurs d'activit\u00e9.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Auparavant, avant la mise au point de ce syst\u00e8me, trois \u00e9paisseurs de paroi de tube d'acier standard \u00e9taient utilis\u00e9es : standard, extra-forte et double extra-forte.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La formule de calcul de l'\u00e9ch\u00e9ancier est la suivante <\/span><b>SCH = 1000(P\/S)<\/b><span style=\"font-weight: 400;\">,\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">o\u00f9 P repr\u00e9sente la pression de service et S la contrainte admissible. Les tuyaux en acier inoxydable portent le suffixe \"S\" apr\u00e8s le num\u00e9ro de nomenclature.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Il est important de noter que des tuyaux de dimensions nominales diff\u00e9rentes peuvent avoir le m\u00eame num\u00e9ro de nomenclature. Cependant, plus la taille du tuyau augmente, plus l'\u00e9paisseur de la paroi augmente. Certaines donn\u00e9es ont \u00e9t\u00e9 pr\u00e9sent\u00e9es dans le tableau \u00e0 titre d'exemple. Elles indiquent la relation entre les trois.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Taille nominale du tuyau (NPS)<\/b><\/td>\n<td><b>Num\u00e9ro de l'horaire<\/b><\/td>\n<td><b>\u00c9paisseur r\u00e9elle de la paroi<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1.000&#8243;<\/span><\/td>\n<td><span style=\"font-weight: 400;\">40<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.133&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2.000&#8243;<\/span><\/td>\n<td><span style=\"font-weight: 400;\">40<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.154&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">1.000&#8243;<\/span><\/td>\n<td><span style=\"font-weight: 400;\">80<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.179&#8243;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">2.000&#8243;<\/span><\/td>\n<td><span style=\"font-weight: 400;\">80<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.218&#8243;<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Des num\u00e9ros de nomenclature plus \u00e9lev\u00e9s signifient toujours des parois de tuyaux plus \u00e9paisses. Cela est vrai quelle que soit la taille du tuyau avec lequel vous travaillez. M\u00eame lorsque les tuyaux portent le m\u00eame num\u00e9ro de nomenclature, l'\u00e9paisseur de leurs parois varie en fonction du diam\u00e8tre.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pourquoi cela est-il important ? Des parois plus \u00e9paisses permettent aux tuyaux de supporter une pression plus importante. Elles assurent \u00e9galement la solidit\u00e9 et la s\u00e9curit\u00e9 de la conduite pour son utilisation sp\u00e9cifique. Ce syst\u00e8me garantit que chaque tuyau peut remplir correctement sa fonction sans d\u00e9faillance structurelle ni fuite. Le principe est clair : les tuyaux de plus grande taille doivent avoir des parois plus \u00e9paisses pour conserver leur r\u00e9sistance et leur stabilit\u00e9, m\u00eame s'ils portent la m\u00eame d\u00e9signation. Cette approche de la conception permet aux syst\u00e8mes de tuyauterie de fonctionner en toute s\u00e9curit\u00e9 sous pression.<\/span><\/p>\n<h2>Qu'est-ce que le diam\u00e8tre nominal d'un tuyau (NPS) ?<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5972\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-is-nominal-pipe-size-NPS.webp\" alt=\"Qu&#039;est-ce que le diam\u00e8tre nominal d&#039;un tuyau NPS ?\" width=\"651\" height=\"488\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-is-nominal-pipe-size-NPS.webp 1000w, https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-is-nominal-pipe-size-NPS-300x225.webp 300w, https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-is-nominal-pipe-size-NPS-768x576.webp 768w, https:\/\/uniasen.com\/wp-content\/uploads\/2025\/10\/What-is-nominal-pipe-size-NPS-16x12.webp 16w\" sizes=\"auto, (max-width: 651px) 100vw, 651px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Il existe deux diam\u00e8tres de tuyaux mesur\u00e9s : le diam\u00e8tre int\u00e9rieur et le diam\u00e8tre ext\u00e9rieur. Le diam\u00e8tre nominal des tuyaux indique le diam\u00e8tre int\u00e9rieur. Si le num\u00e9ro de nomenclature change, le diam\u00e8tre int\u00e9rieur changera. Le diam\u00e8tre ext\u00e9rieur reste inchang\u00e9, quel que soit le changement de num\u00e9ro de nomenclature.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les deux principaux param\u00e8tres utilis\u00e9s pour sp\u00e9cifier les tubes en acier sont le num\u00e9ro de nomenclature et le diam\u00e8tre nominal du tube.\u00a0<\/span><\/p>\n<h2>Conclusion<\/h2>\n<p><span style=\"font-weight: 400;\">En conclusion, le num\u00e9ro de nomenclature est un param\u00e8tre essentiel qui sp\u00e9cifie l'\u00e9paisseur de la paroi int\u00e9rieure des tuyaux. Il s'agit d'une norme qui permet aux ing\u00e9nieurs et aux entrepreneurs de s\u00e9lectionner le tuyau id\u00e9al pour r\u00e9pondre \u00e0 des exigences sp\u00e9cifiques, telles que la manipulation de la pression et le soutien structurel, dans le cadre de divers projets. L'augmentation du num\u00e9ro de nomenclature indique une augmentation de l'\u00e9paisseur de la paroi int\u00e9rieure. Le diam\u00e8tre ext\u00e9rieur, quant \u00e0 lui, reste inchang\u00e9. Bien qu'il existe diff\u00e9rents sch\u00e9mas de tuyauterie pour diff\u00e9rents diam\u00e8tres nominaux, les SCH 40 et SCH 40 sont les plus courants. <a href=\"https:\/\/uniasen.com\/fr\/blog\/quest-ce-quun-tuyau-schedule-80\/\">SCH 80<\/a> sont les plus populaires. Le choix du bon num\u00e9ro de nomenclature vous aidera \u00e0 soutenir votre projet en travaillant en toute s\u00e9curit\u00e9 dans des conditions de haute pression.\u00a0<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Lorsqu'il s'agit de syst\u00e8mes de canalisations, il est facile de confondre les programmes de canalisations. Il est important de comprendre la terminologie, en particulier pour les ing\u00e9nieurs et les entrepreneurs travaillant sur des projets de construction et des projets industriels. Cela leur permet de s\u00e9lectionner le bon tuyau pour l'application sp\u00e9cifique, telle que la manipulation \u00e0 haute pression ou le soutien structurel. \u00cates-vous curieux de conna\u00eetre...<\/p>","protected":false},"author":10,"featured_media":5922,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What does Schedule Mean in Pipe?<\/title>\n<meta name=\"description\" content=\"In piping engineering, schedule defines the nominal wall thickness of pipes. 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