![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Qingdao-LNG-Pipeline-Project-1.jpg\" "\\"Qingdao-LNG-Pipeline-Projet-1.jpg\\"")
<\/figure>\n\n\n\nChamp de production du projet de pipeline de GNL de Qingdao<\/h2>\n\n\n\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/Qingdao-LNG-Pipeline-Project-2.jpg\" "\\"Projet")
<\/figure>\n\n\n\nListe de colisage du projet de pipeline de GNL de Qingdao<\/h2>\n\n\n\n- Robinet \u00e0 tournant sph\u00e9rique cryog\u00e9nique 1\/2 pouces ~ 10 pouces<\/li>
- Vanne cryog\u00e9nique 1\/2 pouces ~ 10 pouces<\/li>
- Vanne papillon cryog\u00e9nique 4 pouces ~ 10 pouces<\/li><\/ul>\n\n\n\n
Que sont les vannes cryog\u00e9niques\u00a0?<\/h2>\n\n\n\n
Les vannes cryog\u00e9niques tirent leur nom de la branche de la physique relative aux mat\u00e9riaux se trouvant \u00e0 tr\u00e8s basse temp\u00e9rature. Pour cette raison, les vannes cryog\u00e9niques sont g\u00e9n\u00e9ralement utilis\u00e9es dans des applications dans lesquelles des gaz tr\u00e8s froids (ou d'autres fluides) sont transmis \u00e0 travers les vannes, ce qui peut potentiellement provoquer des dysfonctionnements sans extension cryog\u00e9nique.<\/p>\n\n\n\n
La production, le transport et le stockage de gaz liqu\u00e9fi\u00e9s tels que l'oxyg\u00e8ne, l'azote, l'argon, le gaz naturel, l'hydrog\u00e8ne ou l'h\u00e9lium (jusqu'\u00e0 -425\u00b0F\/-253,9\u00b0C) pr\u00e9sentent plusieurs probl\u00e8mes techniques. Les vannes moul\u00e9es \u00e0 chapeau allong\u00e9 sp\u00e9cialement adapt\u00e9es Velan offrent un service s\u00fbr et efficace.<\/p>\n\n\n\n
Comment fonctionne une vanne cryog\u00e9nique ?<\/h2>\n\n\n\n
Les vannes cryog\u00e9niques sont maintenues dans une position ferm\u00e9e naturelle pour maintenir les gaz cryog\u00e9niques ou autres fluides s\u00e9curis\u00e9s et confin\u00e9s en toute s\u00e9curit\u00e9. Une vanne cryog\u00e9nique est g\u00e9n\u00e9ralement con\u00e7ue pour r\u00e9agir \u00e0 une pression \u00e9lev\u00e9e qui pousse la vanne en position ouverte pour permettre au gaz ou \u00e0 d'autres fluides de s'\u00e9couler facilement. Un tel flux ouvert se poursuivra jusqu'\u00e0 ce que la pression diminue \u00e0 nouveau, auquel cas il reculera et sera scell\u00e9 avec un si\u00e8ge m\u00e9tallique sp\u00e9cial \u00e9tanche aux bulles pour emp\u00eacher toute fuite.<\/p>\n\n\n\n
Choisir les bonnes vannes cryog\u00e9niques<\/h2>\n\n\n\n
Il existe cinq types de vannes cryog\u00e9niques id\u00e9ales pour les fluides cryog\u00e9niques. Chacun de ces types poss\u00e8de son propre ensemble de caract\u00e9ristiques qui les rendent adapt\u00e9s \u00e0 certaines applications et inappropri\u00e9s \u00e0 d\u2019autres.<\/p>\n\n\n\n
- Robinets \u00e0 soupape<\/strong>. Appel\u00e9es ainsi en raison de leur forme sph\u00e9rique, ces vannes poss\u00e8dent un disque mobile interne \u2013 l\u2019obturateur \u2013 qui tourne \u00e0 90 degr\u00e9s par rapport au plan de son si\u00e8ge corporel coordonn\u00e9. Ces vannes cryog\u00e9niques offrent une plus grande fiabilit\u00e9 pour des performances d'\u00e9tanch\u00e9it\u00e9 \u00e0 long terme, mais sont sensibles \u00e0 l'humidit\u00e9 et ne conviennent pas dans les situations o\u00f9 le d\u00e9bit est primordial.<\/li>
- Vannes \u00e0 bille<\/strong>. Ces vannes utilisent une bille comme obturateur et comprennent g\u00e9n\u00e9ralement un si\u00e8ge de corps en polyt\u00e9trafluoro\u00e9thyl\u00e8ne. Ils ont de meilleures caract\u00e9ristiques de d\u00e9bit que les robinets \u00e0 soupape, mais sont plus sujets \u00e0 l'usure de leurs joints et de la bille elle-m\u00eame. Ils sont donc particuli\u00e8rement utiles pour les applications dans lesquelles un chemin d'\u00e9coulement sans restriction est n\u00e9cessaire.<\/li>
- Robinets \u00e0 tournant sph\u00e9rique \u00e0 entr\u00e9e sup\u00e9rieure<\/strong>. Semblable aux vannes cryog\u00e9niques \u00e0 bille standard, ce mod\u00e8le plus r\u00e9cent a une conception monobloc avec des connexions soud\u00e9es bout \u00e0 bout qui facilitent la maintenance. L\u2019absence de joints m\u00e9caniques en fait \u00e9galement une option privil\u00e9gi\u00e9e dans les applications anti-incendie.<\/li>
- Vannes \u00e0 guillotine<\/strong>. Les vannes \u00e0 vanne utilisent une vanne de type coin comme obturateur qui pivote pour se fermer parall\u00e8lement au si\u00e8ge du corps d'accouplement. Ils sont similaires aux robinets \u00e0 bille dans la mesure o\u00f9 ils offrent de bonnes caract\u00e9ristiques de d\u00e9bit mais sont g\u00ean\u00e9s par l'usure.<\/li>
- Vannes papillon<\/strong>. Les vannes papillon font partie de la famille quart de tour et utilisent un disque circulaire en leur centre. Ce disque permet aux vannes cryog\u00e9niques papillon d'\u00eatre plus courtes que les choix mentionn\u00e9s ci-dessus, ce qui les rend plus l\u00e9g\u00e8res et moins ch\u00e8res ainsi que rapides et simples \u00e0 utiliser. Mais une utilisation excessive entra\u00eene une dur\u00e9e de vie plus courte.<\/li><\/ul>\n\n\n\n
Commentaires des clients sur le projet de pipeline de GNL de Qingdao<\/h2>\n\n\n\n
La vanne basse temp\u00e9rature de ZECO est garantie pour r\u00e9sister aux basses temp\u00e9ratures et peut jouer efficacement le r\u00f4le de fonctionnement normal.<\/p>\n\n\n\n\n
Balises associ\u00e9es :<\/h2>\n\n\n\n\n\nSoupape ZECO<\/a>\n\n<\/div>\n\n\n\n\nVanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n\nR\u00e9paration de vannes \u00e0 vanne<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un clapet anti-retour axial ?<\/a>\n\n<\/div>\n\n\n\n\n\nQue sont les vannes \u00e0 soupape\u00a0?<\/a>\n\n<\/div>\n\n\n\n\nFabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n\nUsine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"Le projet GNL \u00e0 Qingdao joue un r\u00f4le important dans l\u2019am\u00e9lioration de la structure de la consommation \u00e9nerg\u00e9tique et la r\u00e9alisation du d\u00e9veloppement durable du \u2026 Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":16818,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2059,2264,2263,2352,3747,3746,3057,3748],"class_list":["post-16448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-cryogenic-ball-valve","tag-cryogenic-butterfly-valve","tag-cryogenic-gate-valve","tag-cryogenic-valve","tag-cryogenic-valve-manufacturer","tag-cryogenic-valve-manufacturers","tag-cryogenic-valve-market","tag-lng-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/qingdao-lng-pipeline-project.jpg",576,324,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2059,"name":"Cryogenic Ball Valve","slug":"cryogenic-ball-valve","term_group":0,"term_taxonomy_id":2059,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":2264,"name":"cryogenic butterfly valve","slug":"cryogenic-butterfly-valve","term_group":0,"term_taxonomy_id":2264,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2263,"name":"cryogenic gate valve","slug":"cryogenic-gate-valve","term_group":0,"term_taxonomy_id":2263,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2352,"name":"cryogenic valve","slug":"cryogenic-valve","term_group":0,"term_taxonomy_id":2352,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":3747,"name":"cryogenic valve manufacturer","slug":"cryogenic-valve-manufacturer","term_group":0,"term_taxonomy_id":3747,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3746,"name":"cryogenic valve manufacturers","slug":"cryogenic-valve-manufacturers","term_group":0,"term_taxonomy_id":3746,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3057,"name":"Cryogenic Valve Market","slug":"cryogenic-valve-market","term_group":0,"term_taxonomy_id":3057,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET CRYOGENIC VALVE INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\nCryogenic valves are designed to be utilized in air separation, chemical, or liquified natural gas (LNG) plants. They open in high-pressure conditions and allow the free flow of the gases until the pressure reduces. They assist in reducing the heat that enters the valve from outside, thereby keeping the packing gland temperature above 0 degrees Celsius and avoiding the stem and parts above the bonnet from freezing or frosting. At present, they are widely available in a variety of shapes and sizes to function under different pressure ranges.\r\n\r\n\r\n\r\n\r\nCryogenic Valve Market - Snapshot<\/h2>\r\n\r\n\r\n\r\n\r\nThe cryogenic Valve Market is likely to witness a healthy CAGR of 4.8% during the forecast period. Increasing trade of LNG has led to the high demand for storage and transportation of cryogenic gases, which in turn is driving the demand for cryogenic valves. Further, the high demand for industrial gases is acting as a catalyst for the growth of cryogenic valves.\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\nGrowth<\/td>\r\n 4.8% for the next five years<\/td>\r\n<\/tr>\r\n \r\nMajor End-User Type<\/td>\r\n Energy & power<\/td>\r\n<\/tr>\r\n \r\nMajor Type<\/td>\r\n Ball valve<\/td>\r\n<\/tr>\r\n \r\nDominant\u00a0 Application Type<\/td>\r\n Transfer lines<\/td>\r\n<\/tr>\r\n \r\nRegion with the highest demand<\/td>\r\n Asia-Pacific<\/td>\r\n<\/tr>\r\n \r\nKey Players<\/td>\r\n Cryocomp,\r\nThe Emerson Electric Company,\r\nThe Flowserve Corporation,\r\nLarsen & Toubro Limited,\r\nPowell Valves,\r\nSchlumberger Limited,\r\nWeir Group.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\nCryogenic Valve Market Share: By Application<\/h2>\r\n\r\n\r\n\r\n\r\n \t- Tanks & Cold Boxes<\/li>\r\n \t
- Liquefiers<\/li>\r\n \t
- Transfer lines<\/li>\r\n \t
- Manifolds & Gas Trains<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Type<\/h2>\r\n\r\n\r\n\r\n\r\n \t- Globe Valve<\/li>\r\n \t
- Gate Valve<\/li>\r\n \t
- Check Valve<\/li>\r\n \t
- Ball Valve<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Gas<\/h2>\r\n\r\n\r\n\r\n\r\n \t- LNG<\/li>\r\n \t
- Oxygen<\/li>\r\n \t
- Nitrogen<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By End-User<\/h2>\r\n\r\n\r\n\r\n\r\n \t- Energy & Power<\/li>\r\n \t
- Chemicals<\/li>\r\n \t
- Food & Beverage<\/li>\r\n \t
- Healthcare<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Region<\/h2>\r\n\r\n\r\n\r\n\r\n \t- North America<\/li>\r\n \t
- Europe<\/li>\r\n \t
- Asia Pacific<\/li>\r\n \t
- Middle East & Africa<\/li>\r\n \t
- South America<\/li>\r\n<\/ul>\r\n","parent":0,"count":7,"filter":"raw"},{"term_id":3748,"name":"lng valve","slug":"lng-valve","term_group":0,"term_taxonomy_id":3748,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2059,"label":"Cryogenic Ball Valve"},{"value":2264,"label":"cryogenic butterfly valve"},{"value":2263,"label":"cryogenic gate valve"},{"value":2352,"label":"cryogenic valve"},{"value":3747,"label":"cryogenic valve manufacturer"},{"value":3746,"label":"cryogenic valve manufacturers"},{"value":3057,"label":"Cryogenic Valve Market"},{"value":3748,"label":"lng valve"}]},"yoast_head":"\n
Qingdao LNG Pipeline Project - Cryogenic Valve | ZECO Valve<\/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:\/\/zecovalve.com\/fr\/qingdao-lng-pipeline-project.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qingdao LNG Pipeline Project - Cryogenic Valve | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"The LNG project in Qingdao plays an important role in improving the energy consumption structure and realizing the sustainable development of the ... 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<\/figure>\n\n\n\nListe de colisage du projet de pipeline de GNL de Qingdao<\/h2>\n\n\n\n- Robinet \u00e0 tournant sph\u00e9rique cryog\u00e9nique 1\/2 pouces ~ 10 pouces<\/li>
- Vanne cryog\u00e9nique 1\/2 pouces ~ 10 pouces<\/li>
- Vanne papillon cryog\u00e9nique 4 pouces ~ 10 pouces<\/li><\/ul>\n\n\n\n
Que sont les vannes cryog\u00e9niques\u00a0?<\/h2>\n\n\n\n
Les vannes cryog\u00e9niques tirent leur nom de la branche de la physique relative aux mat\u00e9riaux se trouvant \u00e0 tr\u00e8s basse temp\u00e9rature. Pour cette raison, les vannes cryog\u00e9niques sont g\u00e9n\u00e9ralement utilis\u00e9es dans des applications dans lesquelles des gaz tr\u00e8s froids (ou d'autres fluides) sont transmis \u00e0 travers les vannes, ce qui peut potentiellement provoquer des dysfonctionnements sans extension cryog\u00e9nique.<\/p>\n\n\n\n
La production, le transport et le stockage de gaz liqu\u00e9fi\u00e9s tels que l'oxyg\u00e8ne, l'azote, l'argon, le gaz naturel, l'hydrog\u00e8ne ou l'h\u00e9lium (jusqu'\u00e0 -425\u00b0F\/-253,9\u00b0C) pr\u00e9sentent plusieurs probl\u00e8mes techniques. Les vannes moul\u00e9es \u00e0 chapeau allong\u00e9 sp\u00e9cialement adapt\u00e9es Velan offrent un service s\u00fbr et efficace.<\/p>\n\n\n\n
Comment fonctionne une vanne cryog\u00e9nique ?<\/h2>\n\n\n\n
Les vannes cryog\u00e9niques sont maintenues dans une position ferm\u00e9e naturelle pour maintenir les gaz cryog\u00e9niques ou autres fluides s\u00e9curis\u00e9s et confin\u00e9s en toute s\u00e9curit\u00e9. Une vanne cryog\u00e9nique est g\u00e9n\u00e9ralement con\u00e7ue pour r\u00e9agir \u00e0 une pression \u00e9lev\u00e9e qui pousse la vanne en position ouverte pour permettre au gaz ou \u00e0 d'autres fluides de s'\u00e9couler facilement. Un tel flux ouvert se poursuivra jusqu'\u00e0 ce que la pression diminue \u00e0 nouveau, auquel cas il reculera et sera scell\u00e9 avec un si\u00e8ge m\u00e9tallique sp\u00e9cial \u00e9tanche aux bulles pour emp\u00eacher toute fuite.<\/p>\n\n\n\n
Choisir les bonnes vannes cryog\u00e9niques<\/h2>\n\n\n\n
Il existe cinq types de vannes cryog\u00e9niques id\u00e9ales pour les fluides cryog\u00e9niques. Chacun de ces types poss\u00e8de son propre ensemble de caract\u00e9ristiques qui les rendent adapt\u00e9s \u00e0 certaines applications et inappropri\u00e9s \u00e0 d\u2019autres.<\/p>\n\n\n\n
- Robinets \u00e0 soupape<\/strong>. Appel\u00e9es ainsi en raison de leur forme sph\u00e9rique, ces vannes poss\u00e8dent un disque mobile interne \u2013 l\u2019obturateur \u2013 qui tourne \u00e0 90 degr\u00e9s par rapport au plan de son si\u00e8ge corporel coordonn\u00e9. Ces vannes cryog\u00e9niques offrent une plus grande fiabilit\u00e9 pour des performances d'\u00e9tanch\u00e9it\u00e9 \u00e0 long terme, mais sont sensibles \u00e0 l'humidit\u00e9 et ne conviennent pas dans les situations o\u00f9 le d\u00e9bit est primordial.<\/li>
- Vannes \u00e0 bille<\/strong>. Ces vannes utilisent une bille comme obturateur et comprennent g\u00e9n\u00e9ralement un si\u00e8ge de corps en polyt\u00e9trafluoro\u00e9thyl\u00e8ne. Ils ont de meilleures caract\u00e9ristiques de d\u00e9bit que les robinets \u00e0 soupape, mais sont plus sujets \u00e0 l'usure de leurs joints et de la bille elle-m\u00eame. Ils sont donc particuli\u00e8rement utiles pour les applications dans lesquelles un chemin d'\u00e9coulement sans restriction est n\u00e9cessaire.<\/li>
- Robinets \u00e0 tournant sph\u00e9rique \u00e0 entr\u00e9e sup\u00e9rieure<\/strong>. Semblable aux vannes cryog\u00e9niques \u00e0 bille standard, ce mod\u00e8le plus r\u00e9cent a une conception monobloc avec des connexions soud\u00e9es bout \u00e0 bout qui facilitent la maintenance. L\u2019absence de joints m\u00e9caniques en fait \u00e9galement une option privil\u00e9gi\u00e9e dans les applications anti-incendie.<\/li>
- Vannes \u00e0 guillotine<\/strong>. Les vannes \u00e0 vanne utilisent une vanne de type coin comme obturateur qui pivote pour se fermer parall\u00e8lement au si\u00e8ge du corps d'accouplement. Ils sont similaires aux robinets \u00e0 bille dans la mesure o\u00f9 ils offrent de bonnes caract\u00e9ristiques de d\u00e9bit mais sont g\u00ean\u00e9s par l'usure.<\/li>
- Vannes papillon<\/strong>. Les vannes papillon font partie de la famille quart de tour et utilisent un disque circulaire en leur centre. Ce disque permet aux vannes cryog\u00e9niques papillon d'\u00eatre plus courtes que les choix mentionn\u00e9s ci-dessus, ce qui les rend plus l\u00e9g\u00e8res et moins ch\u00e8res ainsi que rapides et simples \u00e0 utiliser. Mais une utilisation excessive entra\u00eene une dur\u00e9e de vie plus courte.<\/li><\/ul>\n\n\n\n
Commentaires des clients sur le projet de pipeline de GNL de Qingdao<\/h2>\n\n\n\n
La vanne basse temp\u00e9rature de ZECO est garantie pour r\u00e9sister aux basses temp\u00e9ratures et peut jouer efficacement le r\u00f4le de fonctionnement normal.<\/p>\n\n\n\n\n
Balises associ\u00e9es :<\/h2>\n\n\n\n\n\nSoupape ZECO<\/a>\n\n<\/div>\n\n\n\n\nVanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n\nR\u00e9paration de vannes \u00e0 vanne<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un clapet anti-retour axial ?<\/a>\n\n<\/div>\n\n\n\n\n\nQue sont les vannes \u00e0 soupape\u00a0?<\/a>\n\n<\/div>\n\n\n\n\nFabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n\nUsine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"Le projet GNL \u00e0 Qingdao joue un r\u00f4le important dans l\u2019am\u00e9lioration de la structure de la consommation \u00e9nerg\u00e9tique et la r\u00e9alisation du d\u00e9veloppement durable du \u2026 Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":16818,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2059,2264,2263,2352,3747,3746,3057,3748],"class_list":["post-16448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-cryogenic-ball-valve","tag-cryogenic-butterfly-valve","tag-cryogenic-gate-valve","tag-cryogenic-valve","tag-cryogenic-valve-manufacturer","tag-cryogenic-valve-manufacturers","tag-cryogenic-valve-market","tag-lng-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/qingdao-lng-pipeline-project.jpg",576,324,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2059,"name":"Cryogenic Ball Valve","slug":"cryogenic-ball-valve","term_group":0,"term_taxonomy_id":2059,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":2264,"name":"cryogenic butterfly valve","slug":"cryogenic-butterfly-valve","term_group":0,"term_taxonomy_id":2264,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2263,"name":"cryogenic gate valve","slug":"cryogenic-gate-valve","term_group":0,"term_taxonomy_id":2263,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2352,"name":"cryogenic valve","slug":"cryogenic-valve","term_group":0,"term_taxonomy_id":2352,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":3747,"name":"cryogenic valve manufacturer","slug":"cryogenic-valve-manufacturer","term_group":0,"term_taxonomy_id":3747,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3746,"name":"cryogenic valve manufacturers","slug":"cryogenic-valve-manufacturers","term_group":0,"term_taxonomy_id":3746,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3057,"name":"Cryogenic Valve Market","slug":"cryogenic-valve-market","term_group":0,"term_taxonomy_id":3057,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET CRYOGENIC VALVE INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\nCryogenic valves are designed to be utilized in air separation, chemical, or liquified natural gas (LNG) plants. They open in high-pressure conditions and allow the free flow of the gases until the pressure reduces. They assist in reducing the heat that enters the valve from outside, thereby keeping the packing gland temperature above 0 degrees Celsius and avoiding the stem and parts above the bonnet from freezing or frosting. At present, they are widely available in a variety of shapes and sizes to function under different pressure ranges.\r\n\r\n\r\n\r\n\r\nCryogenic Valve Market - Snapshot<\/h2>\r\n\r\n\r\n\r\n\r\nThe cryogenic Valve Market is likely to witness a healthy CAGR of 4.8% during the forecast period. Increasing trade of LNG has led to the high demand for storage and transportation of cryogenic gases, which in turn is driving the demand for cryogenic valves. Further, the high demand for industrial gases is acting as a catalyst for the growth of cryogenic valves.\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\nGrowth<\/td>\r\n 4.8% for the next five years<\/td>\r\n<\/tr>\r\n \r\nMajor End-User Type<\/td>\r\n Energy & power<\/td>\r\n<\/tr>\r\n \r\nMajor Type<\/td>\r\n Ball valve<\/td>\r\n<\/tr>\r\n \r\nDominant\u00a0 Application Type<\/td>\r\n Transfer lines<\/td>\r\n<\/tr>\r\n \r\nRegion with the highest demand<\/td>\r\n Asia-Pacific<\/td>\r\n<\/tr>\r\n \r\nKey Players<\/td>\r\n Cryocomp,\r\nThe Emerson Electric Company,\r\nThe Flowserve Corporation,\r\nLarsen & Toubro Limited,\r\nPowell Valves,\r\nSchlumberger Limited,\r\nWeir Group.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\nCryogenic Valve Market Share: By Application<\/h2>\r\n\r\n\r\n\r\n\r\n \t- Tanks & Cold Boxes<\/li>\r\n \t
- Liquefiers<\/li>\r\n \t
- Transfer lines<\/li>\r\n \t
- Manifolds & Gas Trains<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Type<\/h2>\r\n\r\n\r\n\r\n\r\n \t- Globe Valve<\/li>\r\n \t
- Gate Valve<\/li>\r\n \t
- Check Valve<\/li>\r\n \t
- Ball Valve<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Gas<\/h2>\r\n\r\n\r\n\r\n\r\n \t- LNG<\/li>\r\n \t
- Oxygen<\/li>\r\n \t
- Nitrogen<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By End-User<\/h2>\r\n\r\n\r\n\r\n\r\n \t- Energy & Power<\/li>\r\n \t
- Chemicals<\/li>\r\n \t
- Food & Beverage<\/li>\r\n \t
- Healthcare<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Region<\/h2>\r\n\r\n\r\n\r\n\r\n \t- North America<\/li>\r\n \t
- Europe<\/li>\r\n \t
- Asia Pacific<\/li>\r\n \t
- Middle East & Africa<\/li>\r\n \t
- South America<\/li>\r\n<\/ul>\r\n","parent":0,"count":7,"filter":"raw"},{"term_id":3748,"name":"lng valve","slug":"lng-valve","term_group":0,"term_taxonomy_id":3748,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2059,"label":"Cryogenic Ball Valve"},{"value":2264,"label":"cryogenic butterfly valve"},{"value":2263,"label":"cryogenic gate valve"},{"value":2352,"label":"cryogenic valve"},{"value":3747,"label":"cryogenic valve manufacturer"},{"value":3746,"label":"cryogenic valve manufacturers"},{"value":3057,"label":"Cryogenic Valve Market"},{"value":3748,"label":"lng valve"}]},"yoast_head":"\n
Qingdao LNG Pipeline Project - Cryogenic Valve | ZECO Valve<\/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:\/\/zecovalve.com\/fr\/qingdao-lng-pipeline-project.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qingdao LNG Pipeline Project - Cryogenic Valve | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"The LNG project in Qingdao plays an important role in improving the energy consumption structure and realizing the sustainable development of the ... 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Que sont les vannes cryog\u00e9niques\u00a0?<\/h2>\n\n\n\n
Les vannes cryog\u00e9niques tirent leur nom de la branche de la physique relative aux mat\u00e9riaux se trouvant \u00e0 tr\u00e8s basse temp\u00e9rature. Pour cette raison, les vannes cryog\u00e9niques sont g\u00e9n\u00e9ralement utilis\u00e9es dans des applications dans lesquelles des gaz tr\u00e8s froids (ou d'autres fluides) sont transmis \u00e0 travers les vannes, ce qui peut potentiellement provoquer des dysfonctionnements sans extension cryog\u00e9nique.<\/p>\n\n\n\n
La production, le transport et le stockage de gaz liqu\u00e9fi\u00e9s tels que l'oxyg\u00e8ne, l'azote, l'argon, le gaz naturel, l'hydrog\u00e8ne ou l'h\u00e9lium (jusqu'\u00e0 -425\u00b0F\/-253,9\u00b0C) pr\u00e9sentent plusieurs probl\u00e8mes techniques. Les vannes moul\u00e9es \u00e0 chapeau allong\u00e9 sp\u00e9cialement adapt\u00e9es Velan offrent un service s\u00fbr et efficace.<\/p>\n\n\n\n
Comment fonctionne une vanne cryog\u00e9nique ?<\/h2>\n\n\n\n
Les vannes cryog\u00e9niques sont maintenues dans une position ferm\u00e9e naturelle pour maintenir les gaz cryog\u00e9niques ou autres fluides s\u00e9curis\u00e9s et confin\u00e9s en toute s\u00e9curit\u00e9. Une vanne cryog\u00e9nique est g\u00e9n\u00e9ralement con\u00e7ue pour r\u00e9agir \u00e0 une pression \u00e9lev\u00e9e qui pousse la vanne en position ouverte pour permettre au gaz ou \u00e0 d'autres fluides de s'\u00e9couler facilement. Un tel flux ouvert se poursuivra jusqu'\u00e0 ce que la pression diminue \u00e0 nouveau, auquel cas il reculera et sera scell\u00e9 avec un si\u00e8ge m\u00e9tallique sp\u00e9cial \u00e9tanche aux bulles pour emp\u00eacher toute fuite.<\/p>\n\n\n\n
Choisir les bonnes vannes cryog\u00e9niques<\/h2>\n\n\n\n
Il existe cinq types de vannes cryog\u00e9niques id\u00e9ales pour les fluides cryog\u00e9niques. Chacun de ces types poss\u00e8de son propre ensemble de caract\u00e9ristiques qui les rendent adapt\u00e9s \u00e0 certaines applications et inappropri\u00e9s \u00e0 d\u2019autres.<\/p>\n\n\n\n
- Robinets \u00e0 soupape<\/strong>. Appel\u00e9es ainsi en raison de leur forme sph\u00e9rique, ces vannes poss\u00e8dent un disque mobile interne \u2013 l\u2019obturateur \u2013 qui tourne \u00e0 90 degr\u00e9s par rapport au plan de son si\u00e8ge corporel coordonn\u00e9. Ces vannes cryog\u00e9niques offrent une plus grande fiabilit\u00e9 pour des performances d'\u00e9tanch\u00e9it\u00e9 \u00e0 long terme, mais sont sensibles \u00e0 l'humidit\u00e9 et ne conviennent pas dans les situations o\u00f9 le d\u00e9bit est primordial.<\/li>
- Vannes \u00e0 bille<\/strong>. Ces vannes utilisent une bille comme obturateur et comprennent g\u00e9n\u00e9ralement un si\u00e8ge de corps en polyt\u00e9trafluoro\u00e9thyl\u00e8ne. Ils ont de meilleures caract\u00e9ristiques de d\u00e9bit que les robinets \u00e0 soupape, mais sont plus sujets \u00e0 l'usure de leurs joints et de la bille elle-m\u00eame. Ils sont donc particuli\u00e8rement utiles pour les applications dans lesquelles un chemin d'\u00e9coulement sans restriction est n\u00e9cessaire.<\/li>
- Robinets \u00e0 tournant sph\u00e9rique \u00e0 entr\u00e9e sup\u00e9rieure<\/strong>. Semblable aux vannes cryog\u00e9niques \u00e0 bille standard, ce mod\u00e8le plus r\u00e9cent a une conception monobloc avec des connexions soud\u00e9es bout \u00e0 bout qui facilitent la maintenance. L\u2019absence de joints m\u00e9caniques en fait \u00e9galement une option privil\u00e9gi\u00e9e dans les applications anti-incendie.<\/li>
- Vannes \u00e0 guillotine<\/strong>. Les vannes \u00e0 vanne utilisent une vanne de type coin comme obturateur qui pivote pour se fermer parall\u00e8lement au si\u00e8ge du corps d'accouplement. Ils sont similaires aux robinets \u00e0 bille dans la mesure o\u00f9 ils offrent de bonnes caract\u00e9ristiques de d\u00e9bit mais sont g\u00ean\u00e9s par l'usure.<\/li>
- Vannes papillon<\/strong>. Les vannes papillon font partie de la famille quart de tour et utilisent un disque circulaire en leur centre. Ce disque permet aux vannes cryog\u00e9niques papillon d'\u00eatre plus courtes que les choix mentionn\u00e9s ci-dessus, ce qui les rend plus l\u00e9g\u00e8res et moins ch\u00e8res ainsi que rapides et simples \u00e0 utiliser. Mais une utilisation excessive entra\u00eene une dur\u00e9e de vie plus courte.<\/li><\/ul>\n\n\n\n
Commentaires des clients sur le projet de pipeline de GNL de Qingdao<\/h2>\n\n\n\n
La vanne basse temp\u00e9rature de ZECO est garantie pour r\u00e9sister aux basses temp\u00e9ratures et peut jouer efficacement le r\u00f4le de fonctionnement normal.<\/p>\n\n\n\n\n
Balises associ\u00e9es :<\/h2>\n\n\n\n\n
\nSoupape ZECO<\/a>\n\n<\/div>\n\n\n\n\nVanne et robinet \u00e0 boisseau sph\u00e9rique<\/a>\n\n<\/div>\n\n\n\n\nR\u00e9paration de vannes \u00e0 vanne<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet \u00e0 soupape ?<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un clapet anti-retour axial ?<\/a>\n\n<\/div>\n\n\n\n\n\nQue sont les vannes \u00e0 soupape\u00a0?<\/a>\n\n<\/div>\n\n\n\n\nFabricant de robinets-vannes \u00e0 commande manuelle<\/a>\n\n<\/div>\n\n\n\n\nDiff\u00e9rence entre la vanne \u00e0 vanne et la vanne papillon<\/a>\n\n<\/div>\n\n\n\n\nQu'est-ce qu'un robinet-vanne ?<\/a>\n\n<\/div>\n\n\n\n\nUsine de soupapes de r\u00e9duction de pression de Shanghai<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"Le projet GNL \u00e0 Qingdao joue un r\u00f4le important dans l\u2019am\u00e9lioration de la structure de la consommation \u00e9nerg\u00e9tique et la r\u00e9alisation du d\u00e9veloppement durable du \u2026 Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":16818,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2059,2264,2263,2352,3747,3746,3057,3748],"class_list":["post-16448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-cryogenic-ball-valve","tag-cryogenic-butterfly-valve","tag-cryogenic-gate-valve","tag-cryogenic-valve","tag-cryogenic-valve-manufacturer","tag-cryogenic-valve-manufacturers","tag-cryogenic-valve-market","tag-lng-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/qingdao-lng-pipeline-project.jpg",576,324,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2059,"name":"Cryogenic Ball Valve","slug":"cryogenic-ball-valve","term_group":0,"term_taxonomy_id":2059,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":2264,"name":"cryogenic butterfly valve","slug":"cryogenic-butterfly-valve","term_group":0,"term_taxonomy_id":2264,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2263,"name":"cryogenic gate valve","slug":"cryogenic-gate-valve","term_group":0,"term_taxonomy_id":2263,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2352,"name":"cryogenic valve","slug":"cryogenic-valve","term_group":0,"term_taxonomy_id":2352,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":3747,"name":"cryogenic valve manufacturer","slug":"cryogenic-valve-manufacturer","term_group":0,"term_taxonomy_id":3747,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3746,"name":"cryogenic valve manufacturers","slug":"cryogenic-valve-manufacturers","term_group":0,"term_taxonomy_id":3746,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3057,"name":"Cryogenic Valve Market","slug":"cryogenic-valve-market","term_group":0,"term_taxonomy_id":3057,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET CRYOGENIC VALVE INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\nCryogenic valves are designed to be utilized in air separation, chemical, or liquified natural gas (LNG) plants. They open in high-pressure conditions and allow the free flow of the gases until the pressure reduces. They assist in reducing the heat that enters the valve from outside, thereby keeping the packing gland temperature above 0 degrees Celsius and avoiding the stem and parts above the bonnet from freezing or frosting. At present, they are widely available in a variety of shapes and sizes to function under different pressure ranges.\r\n\r\n\r\n\r\n\r\n
Cryogenic Valve Market - Snapshot<\/h2>\r\n\r\n\r\n\r\n\r\nThe cryogenic Valve Market is likely to witness a healthy CAGR of 4.8% during the forecast period. Increasing trade of LNG has led to the high demand for storage and transportation of cryogenic gases, which in turn is driving the demand for cryogenic valves. Further, the high demand for industrial gases is acting as a catalyst for the growth of cryogenic valves.\r\n\r\n\r\n\r\n\r\n
\r\n\r\n\r\n
\r\n Growth<\/td>\r\n 4.8% for the next five years<\/td>\r\n<\/tr>\r\n \r\n Major End-User Type<\/td>\r\n Energy & power<\/td>\r\n<\/tr>\r\n \r\n Major Type<\/td>\r\n Ball valve<\/td>\r\n<\/tr>\r\n \r\n Dominant\u00a0 Application Type<\/td>\r\n Transfer lines<\/td>\r\n<\/tr>\r\n \r\n Region with the highest demand<\/td>\r\n Asia-Pacific<\/td>\r\n<\/tr>\r\n \r\n Key Players<\/td>\r\n Cryocomp,\r\nThe Emerson Electric Company,\r\nThe Flowserve Corporation,\r\nLarsen & Toubro Limited,\r\nPowell Valves,\r\nSchlumberger Limited,\r\nWeir Group.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n Cryogenic Valve Market Share: By Application<\/h2>\r\n\r\n\r\n\r\n
- \r\n \t
- Tanks & Cold Boxes<\/li>\r\n \t
- Liquefiers<\/li>\r\n \t
- Transfer lines<\/li>\r\n \t
- Manifolds & Gas Trains<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Type<\/h2>\r\n\r\n\r\n\r\n
- \r\n \t
- Globe Valve<\/li>\r\n \t
- Gate Valve<\/li>\r\n \t
- Check Valve<\/li>\r\n \t
- Ball Valve<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Gas<\/h2>\r\n\r\n\r\n\r\n
- \r\n \t
- LNG<\/li>\r\n \t
- Oxygen<\/li>\r\n \t
- Nitrogen<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By End-User<\/h2>\r\n\r\n\r\n\r\n
- \r\n \t
- Energy & Power<\/li>\r\n \t
- Chemicals<\/li>\r\n \t
- Food & Beverage<\/li>\r\n \t
- Healthcare<\/li>\r\n \t
- Others<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Cryogenic Valve Market Share: By Region<\/h2>\r\n\r\n\r\n\r\n
- \r\n \t
- North America<\/li>\r\n \t
- Europe<\/li>\r\n \t
- Asia Pacific<\/li>\r\n \t
- Middle East & Africa<\/li>\r\n \t
- South America<\/li>\r\n<\/ul>\r\n","parent":0,"count":7,"filter":"raw"},{"term_id":3748,"name":"lng valve","slug":"lng-valve","term_group":0,"term_taxonomy_id":3748,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2059,"label":"Cryogenic Ball Valve"},{"value":2264,"label":"cryogenic butterfly valve"},{"value":2263,"label":"cryogenic gate valve"},{"value":2352,"label":"cryogenic valve"},{"value":3747,"label":"cryogenic valve manufacturer"},{"value":3746,"label":"cryogenic valve manufacturers"},{"value":3057,"label":"Cryogenic Valve Market"},{"value":3748,"label":"lng valve"}]},"yoast_head":"\n
Qingdao LNG Pipeline Project - Cryogenic Valve | ZECO Valve<\/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:\/\/zecovalve.com\/fr\/qingdao-lng-pipeline-project.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qingdao LNG Pipeline Project - Cryogenic Valve | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"The LNG project in Qingdao plays an important role in improving the energy consumption structure and realizing the sustainable development of the ... 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- Vannes \u00e0 bille<\/strong>. Ces vannes utilisent une bille comme obturateur et comprennent g\u00e9n\u00e9ralement un si\u00e8ge de corps en polyt\u00e9trafluoro\u00e9thyl\u00e8ne. Ils ont de meilleures caract\u00e9ristiques de d\u00e9bit que les robinets \u00e0 soupape, mais sont plus sujets \u00e0 l'usure de leurs joints et de la bille elle-m\u00eame. Ils sont donc particuli\u00e8rement utiles pour les applications dans lesquelles un chemin d'\u00e9coulement sans restriction est n\u00e9cessaire.<\/li>