{"id":598,"date":"2024-01-25T09:33:49","date_gmt":"2024-01-25T08:33:49","guid":{"rendered":"https:\/\/initiale.ovh\/?p=598"},"modified":"2024-06-02T17:34:33","modified_gmt":"2024-06-02T15:34:33","slug":"reducteur-de-pression","status":"publish","type":"post","link":"https:\/\/initiale.ovh\/index.php\/2024\/01\/25\/reducteur-de-pression\/","title":{"rendered":"R\u00e9ducteur de pression"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Pourquoi un r\u00e9ducteur de pression ?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Au fur et \u00e0 mesure de l&rsquo;arriv\u00e9e de l&rsquo;EFS (eau froide sanitaire) dans tous les domiciles, il a fallu augmenter la pression du r\u00e9seau, mais pas sans cons\u00e9quences.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_01.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"989\" height=\"492\" src=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_01.jpg\" alt=\"\" class=\"wp-image-610\" srcset=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_01.jpg 989w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_01-300x149.jpg 300w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_01-768x382.jpg 768w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_01-421x209.jpg 421w\" sizes=\"auto, (max-width: 989px) 100vw, 989px\" \/><\/a><figcaption class=\"wp-element-caption\">D\u00e9t\u00e9rioration<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_02.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"982\" height=\"466\" src=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_02.jpg\" alt=\"\" class=\"wp-image-611\" srcset=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_02.jpg 982w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_02-300x142.jpg 300w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_02-768x364.jpg 768w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_02-421x200.jpg 421w\" sizes=\"auto, (max-width: 982px) 100vw, 982px\" \/><\/a><figcaption class=\"wp-element-caption\">Gaspillage<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_03.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"989\" height=\"505\" src=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_03.jpg\" alt=\"\" class=\"wp-image-612\" srcset=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_03.jpg 989w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_03-300x153.jpg 300w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_03-768x392.jpg 768w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/PbsForteP_03-421x215.jpg 421w\" sizes=\"auto, (max-width: 989px) 100vw, 989px\" \/><\/a><figcaption class=\"wp-element-caption\">G\u00eane<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Pour \u00e9viter ces probl\u00e8mes, le r\u00e9ducteur de pression est install\u00e9 au niveau de l&rsquo;adduction d&rsquo;eau au sein de chaque foyer.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"795\" height=\"406\" src=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/image.png\" alt=\"\" class=\"wp-image-621\" style=\"width:441px;height:auto\" srcset=\"https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/image.png 795w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/image-300x153.png 300w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/image-768x392.png 768w, https:\/\/initiale.ovh\/wp-content\/uploads\/2024\/01\/image-421x215.png 421w\" sizes=\"auto, (max-width: 795px) 100vw, 795px\" \/><\/a><figcaption class=\"wp-element-caption\">En amont, la pression est forte<br>En aval, \u00e0 la maison, la pression est plus faible<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Pour bien faire et \u00e9viter que les impuret\u00e9s du r\u00e9seau d&rsquo;adduction viennent endommager le r\u00e9ducteur, on place g\u00e9n\u00e9ralement un <a href=\"https:\/\/initiale.ovh\/index.php\/2024\/01\/25\/le-filtre-a-tamis\/\">filtre \u00e0 tamis<\/a> juste avant le r\u00e9ducteur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Principe du r\u00e9ducteur de pression<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une pression est une force F (en Newton \u00ab&nbsp;N&nbsp;\u00bb) appliqu\u00e9e \u00e0 une surface S (en m\u00e8tre-carr\u00e9s \u00ab&nbsp;m\u00b2&nbsp;\u00bb), soit&nbsp;: <strong>P = F \/ S <\/strong><em>ou <\/em><strong>F = P x S<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>En Amont, on peut \u00e9crire&nbsp;: F = P x s<sub>si\u00e8ge<\/sub> + F<sub>ressort<\/sub><\/li>\n\n\n\n<li>En Amont, on peut \u00e9crire&nbsp;: F = p x S<sub>Membrane<\/sub><\/li>\n\n\n\n<li>\u00c0 l\u2019\u00e9quilibre&nbsp;: P<sub>Amont<\/sub> x s<sub>si\u00e8ge<\/sub> + F<sub>ressort<\/sub> = p<sub>Aval<\/sub> x S<sub>Membrane<\/sub><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Imaginons d&rsquo;abord qu&rsquo;il n&rsquo;y ait pas de ressort, ainsi \u00e0 l&rsquo;\u00e9quilibre\u00a0: P<sub>Amont<\/sub> x s<sub>si\u00e8ge<\/sub> = p<sub>Aval<\/sub> x S<sub>Membrane<\/sub>. Dans cette \u00e9quation, la taille des lettres n&rsquo;est pas choisie par hasard. La pression en amont est grande (P) par rapport \u00e0 la pression en aval (p). Le r\u00e9ducteur dispose donc logiquement d&rsquo;une petite surface de si\u00e8ge (s) et d&rsquo;une grande surface pour la membrane (S), sans quoi il n&rsquo;y aurait pas d&rsquo;\u00e9galit\u00e9. En soi, le r\u00e9ducteur est d\u00e9j\u00e0 fonctionnel, mais puisque la taille de ces surfaces est d\u00e9termin\u00e9e \u00e0 l&rsquo;usine, on ajoute \u00e9galement un ressort de force r\u00e9glable (visse de r\u00e9glage) qui favorise plus ou moins le d\u00e9placement du si\u00e8ge. Ainsi, si on visse, la pression en aval est plus forte. En revanche, si on d\u00e9visse, la pression en val est plus faible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Installation et alternative<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le r\u00e9ducteur de pression s&rsquo;installe toujours apr\u00e8s le compteur d&rsquo;eau et avec un filtre \u00e0 tamis situ\u00e9 juste en amont. En guise d&rsquo;alternative, il existe  le r\u00e9gulateur de pression. Ce dernier contient le filtre \u00e0 tamis et se r\u00e8gle automatiquement \u00e0 3 bars quelle que soit le pression en amont.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-l-039-initiale wp-block-embed-l-039-initiale\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"akVKtBWqzv\"><a href=\"https:\/\/initiale.ovh\/index.php\/2024\/01\/22\/plomberie\/\">Plomberie<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u00ab\u00a0Plomberie\u00a0\u00bb &#8212; L&#039;Initiale\" src=\"https:\/\/initiale.ovh\/index.php\/2024\/01\/22\/plomberie\/embed\/#?secret=1KADSIBQC1#?secret=akVKtBWqzv\" data-secret=\"akVKtBWqzv\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Pourquoi un r\u00e9ducteur de pression ? Au fur et \u00e0 mesure de l&rsquo;arriv\u00e9e de l&rsquo;EFS (eau froide sanitaire) dans tous les domiciles, il a fallu &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-598","post","type-post","status-publish","format-standard","hentry","category-plomberie"],"_links":{"self":[{"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/posts\/598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/comments?post=598"}],"version-history":[{"count":9,"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/posts\/598\/revisions"}],"predecessor-version":[{"id":1222,"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/posts\/598\/revisions\/1222"}],"wp:attachment":[{"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/initiale.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}