{"id":889,"date":"2024-09-26T15:54:47","date_gmt":"2024-09-26T07:54:47","guid":{"rendered":"https:\/\/www.darko-tech.com\/?post_type=products&p=889"},"modified":"2025-05-06T09:20:32","modified_gmt":"2025-05-06T01:20:32","slug":"vanne-de-decharge-en-etoile","status":"publish","type":"products","link":"https:\/\/www.darko-tech.com\/fr\/produits\/vanne-de-decharge-en-etoile\/","title":{"rendered":"Vanne de d\u00e9charge en \u00e9toile"},"content":{"rendered":"
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\u00a0<\/h2>

Mise en \u00e9vidence<\/strong><\/h2>

L'\u00e9toile du phoque dur soupape de d\u00e9charge<\/a> fonctionne avec souplesse dans des environnements \u00e0 haute temp\u00e9rature. Il r\u00e9pond \u00e0 des exigences \u00e9lev\u00e9es en mati\u00e8re d'\u00e9tanch\u00e9it\u00e9. Elle fonctionne \u00e9galement bien dans des conditions de travail complexes. La vanne offre un bon effet d'\u00e9tanch\u00e9it\u00e9. En outre, elle permet un d\u00e9montage ais\u00e9. Cependant, les vannes de d\u00e9charge de cendres d'\u00e9toiles actuellement disponibles sur le march\u00e9 ne r\u00e9pondent pas aux exigences en mati\u00e8re de transport et de d\u00e9charge de mat\u00e9riaux pulv\u00e9rulents. Leurs performances ne sont souvent pas id\u00e9ales.<\/p>

Structure d'\u00e9tanch\u00e9it\u00e9<\/strong>: L'engagement serr\u00e9 entre les surfaces m\u00e9talliques cr\u00e9e la structure d'\u00e9tanch\u00e9it\u00e9 des vannes \u00e0 joint dur. Cette structure permet d'obtenir de bonnes performances d'\u00e9tanch\u00e9it\u00e9.<\/p>

Temp\u00e9rature applicable<\/strong>: Gr\u00e2ce \u00e0 leur structure d'\u00e9tanch\u00e9it\u00e9 m\u00e9tallique, les vannes \u00e0 \u00e9tanch\u00e9it\u00e9 dure peuvent fonctionner \u00e0 des temp\u00e9ratures relativement \u00e9lev\u00e9es, g\u00e9n\u00e9ralement comprises entre -196\u00b0C et +650\u00b0C.<\/p>

Supports applicables<\/strong>: Les robinets \u00e0 joint dur ont une structure d'\u00e9tanch\u00e9it\u00e9 plus fiable que les robinets \u00e0 tournant sph\u00e9rique \u00e0 joint souple. Ils peuvent donc \u00eatre utilis\u00e9s avec une plus large gamme de fluides, y compris les gaz, les liquides et la vapeur.<\/p>

Performance d'\u00e9tanch\u00e9it\u00e9<\/strong>: Les performances d'\u00e9tanch\u00e9it\u00e9 des vannes \u00e0 joint dur sont sup\u00e9rieures \u00e0 celles des vannes \u00e0 boisseau sph\u00e9rique \u00e0 joint souple, offrant ainsi une plus grande fiabilit\u00e9.<\/p>

\"\"<\/p>

Application<\/strong><\/h2>

Les vannes de d\u00e9charge en \u00e9toile \u00e0 joint dur sont principalement utilis\u00e9es dans des domaines industriels tels que la p\u00e9trochimie, le gaz naturel et la production d'\u00e9nergie. Elles sont \u00e9galement utilis\u00e9es dans des situations qui requi\u00e8rent une r\u00e9sistance \u00e0 des pressions \u00e9lev\u00e9es, \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es et \u00e0 des milieux fortement corrosifs. Ces vannes sont g\u00e9n\u00e9ralement fabriqu\u00e9es \u00e0 partir de mat\u00e9riaux \u00e0 haute r\u00e9sistance comme l'acier inoxydable ou l'acier alli\u00e9. Cela garantit leur stabilit\u00e9 et leur fiabilit\u00e9 dans des conditions extr\u00eames. Les avantages des vannes \u00e0 joint dur incluent une bonne capacit\u00e9 de pression. Elles offrent \u00e9galement une r\u00e9sistance \u00e0 la corrosion et des performances \u00e0 haute temp\u00e9rature. Ces caract\u00e9ristiques leur permettent de fonctionner de mani\u00e8re stable pendant de longues p\u00e9riodes dans des environnements industriels difficiles.<\/p>

Structure et dessin<\/strong><\/h2>

Darko utilise des moteurs et des r\u00e9ducteurs de marque et fiables pour la vanne de d\u00e9charge en \u00e9toile. Le rotor, fabriqu\u00e9 \u00e0 partir de mat\u00e9riaux sp\u00e9ciaux, pr\u00e9sente une structure unique qui s'adapte parfaitement aux changements de temp\u00e9rature dans le syst\u00e8me thermique de cuisson. Le racleur r\u00e9sistant \u00e0 l'usure du rotor est positionn\u00e9 avec pr\u00e9cision, ce qui rend l'entretien pratique et facile.<\/p>

\"\"<\/p>

\"\"<\/h2>

Principe de fonctionnement de la vanne de d\u00e9charge en \u00e9toile<\/strong><\/h2>

Lorsque le r\u00e9ducteur \u00e9lectrique fonctionne, il entra\u00eene la roue \u00e0 l'aide d'un accouplement unidirectionnel. La conception comprend une plaque d'acier \u00e0 joint dur \u00e9lastique r\u00e9sistant aux temp\u00e9ratures \u00e9lev\u00e9es, install\u00e9e sur la roue d'alimentation. Lorsque le m\u00e9canisme de transmission fait tourner le rotor, il fixe la roue d'alimentation et la plaque d'acier \u00e0 joint dur \u00e9lastique \u00e0 l'aide de plaques de pression et de boulons. Le rotor fait ensuite tourner la plaque d'acier \u00e0 joint dur \u00e9lastique \u00e0 l'int\u00e9rieur du corps de la vanne. La roue d'alimentation transporte la mati\u00e8re de l'entr\u00e9e de l'alimentateur (bouche sup\u00e9rieure) \u00e0 la sortie de l'alimentateur (bouche inf\u00e9rieure) pour r\u00e9aliser la d\u00e9charge.<\/p>

Sp\u00e9cifications\u00a0<\/strong><\/h2>
Sp\u00e9cifications du rotor\uff0cmm<\/td>D\u00e9bit maximal\uff0ct\/h<\/td>c\u00d7d<\/td>m<\/td><\/tr>
\u03a6<\/strong>500\u00d7700<\/td>150<\/td>500\u00d7700<\/td>2075<\/td><\/tr>
\u03a6<\/strong>630\u00d7800<\/td>300<\/td>630\u00d7800<\/td>2396<\/td><\/tr>
\u03a6<\/strong>800\u00d71000<\/td>350<\/td>800\u00d71000<\/td>2950<\/td><\/tr><\/tbody><\/table>

Vous pouvez aussi aimer<\/strong><\/h2>
\"Une<\/a>
Vanne de d\u00e9rivation \u00e0 trois voies<\/figcaption><\/figure><\/td>
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\"Deux<\/a>
Valve \u00e0 clapet de d\u00e9rivation sur mesure<\/figcaption><\/figure><\/td><\/tr>
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D\u00e9poussi\u00e9reur ATEX<\/figcaption><\/figure><\/td>
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Soupape de d\u00e9compression<\/figcaption><\/figure><\/td>
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Vanne \u00e0 clapet de d\u00e9rivation<\/figcaption><\/figure><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

La vanne de d\u00e9charge en \u00e9toile \u00e0 joint dur est con\u00e7ue et d\u00e9velopp\u00e9e par Darko. Elle permet de rem\u00e9dier \u00e0 des d\u00e9fauts tels qu'un faible effet de verrouillage de l'air et une \u00e9tanch\u00e9it\u00e9 interne inad\u00e9quate. Ces probl\u00e8mes r\u00e9sultent d'un jeu excessif entre le rotor de la roue et le corps de la vanne pendant le transport et le d\u00e9chargement de mat\u00e9riaux pulv\u00e9rulents. Il s'attaque \u00e9galement aux probl\u00e8mes caus\u00e9s par un jeu insuffisant, qui peut entra\u00eener un impact sur le rotor de la roue. En outre, il tient compte des effets de la temp\u00e9rature et des mat\u00e9riaux sur les performances.<\/p>","protected":false},"featured_media":1973,"parent":0,"menu_order":0,"template":"","product":[84],"size":[],"material":[],"class_list":["post-889","products","type-products","status-publish","has-post-thumbnail","hentry","product-high-quality-valves-reliable-solutions-for-fluid-control"],"acf":[],"yoast_head":"\nstar discharge valve | rotary valve | Darko<\/title>\n<meta name=\"description\" content=\"Star discharge valve, also known as impeller feeder, rotary feeder, airlock valve, etc., is widely used in cement industry.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.darko-tech.com\/fr\/produits\/vanne-de-decharge-en-etoile\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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