{"id":15729,"date":"2026-06-09T08:38:00","date_gmt":"2026-06-09T00:38:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15729"},"modified":"2026-06-25T12:32:28","modified_gmt":"2026-06-25T04:32:28","slug":"how-to-choose-butterfly-valve","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/","title":{"rendered":"Butterfly Valve Selection Guide: How to Choose the Right Butterfly Valve"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sommario<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Attiva\/disattiva Sommario\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Attiva\/disattiva<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#What_are_the_Components_of_a_Butterfly_Valve\" >Quali sono i componenti di una valvola a farfalla?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Butterfly_Valve_Types_by_Body_and_Connection_Style\" >Tipi di valvole a farfalla per stile di corpo e connessione<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Wafer_Butterfly_Valve\" >Valvola a farfalla wafer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Flanged_Butterfly_Valve\" >Valvola a farfalla flangiata<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Butterfly_Valve_Seat_Types_and_Seat_Material_Compatibility_Chart\" >Tipi di sedi per valvole a farfalla e tabella di compatibilit\u00e0 dei materiali delle sedi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Five_Key_Influences_for_Right_Butterfly_Valve_Selection\" >Cinque influenze chiave per la corretta selezione della valvola a farfalla<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#How_to_Match_Butterfly_Valve_Specifications_to_Your_Industry\" >Come abbinare le specifiche della valvola a farfalla alla tua industria\u00a0<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Oil_and_Gas\" >Olio e gas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Water_Treatment\" >Trattamento delle acque<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Chemical_Processing\" >Elaborazione chimica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Food_and_Beverage\" >Cibo e bevande<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#HVAC_and_Building_Services\" >HVAC e servizi di costruzione<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.xintaivalves.com\/it\/blog\/butterfly-valve\/how-to-choose-butterfly-valve\/#Conclusion\" >Conclusione<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Le valvole a farfalla sono valvole a quarto di giro ampiamente utilizzate in <a href=\"https:\/\/www.xintaivalves.com\/it\/blog\/flow-control-valve-comprehensive-guide\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/flow-control-valve-comprehensive-guide\/\" rel=\"noreferrer noopener\">controllo del flusso<\/a> applicazioni industriali.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ci sono sei criteri da prendere in considerazione durante la selezione di una valvola appropriata per il tuo progetto. In qualit\u00e0 di ingegnere di approvvigionamento, devi valutare il tipo di fluido, pressione\/temperatura, applicazione della valvola, dimensioni della valvola, compatibilit\u00e0 con i materiali e metodo di funzionamento della valvola.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Questo <a href=\"https:\/\/www.xintaivalves.com\/it\/collection\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>guida alla selezione delle valvole a farfalla<\/strong><\/a> fornisce ai responsabili degli acquisti e agli ingegneri un quadro chiaro. Copre le parti della valvola, i tipi di connessione, i materiali delle sedi e le condizioni operative.\u00a0\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_Components_of_a_Butterfly_Valve\"><\/span><strong>Quali sono i componenti di una valvola a farfalla?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ogni tipo di valvola a farfalla ha gli stessi cinque componenti principali. Conoscere i diversi <a href=\"https:\/\/www.xintaivalves.com\/it\/butterfly-valve-collection\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>parti della valvola a farfalla<\/strong><\/a> previene errori di specifica e costose riparazioni o sostituzioni.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Studia il diagramma qui sotto per aiutarti a capire come funzionano i diversi componenti:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-1024x512.webp\" alt=\"RIASSUNTO DEI COMPONENTI DELLA VALVOLA A FARFALLA\" class=\"wp-image-15731\" style=\"width:604px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724754.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Butterfly_Valve_Types_by_Body_and_Connection_Style\"><\/span><strong>Tipi di valvole a farfalla per stile di corpo e connessione<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lo stile di connessione determina come la valvola si monta sulla tua tubazione. Influenza anche l'accesso alla manutenzione e la capacit\u00e0 di pressione.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ci sono tre tipi di corpo standard, pi\u00f9 due design eccentrici ad alte prestazioni per servizi impegnativi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wafer_Butterfly_Valve\"><\/span><strong>Valvola a farfalla wafer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"299\" height=\"484\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755.webp\" alt=\"\" class=\"wp-image-15732\" style=\"width:148px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755.webp 299w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755-185x300.webp 185w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724755-7x12.webp 7w\" sizes=\"(max-width: 299px) 100vw, 299px\" \/><figcaption class=\"wp-element-caption\"><strong>Lug valvola a farfalla<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">IL <a href=\"https:\/\/www.xintaivalves.com\/it\/products\/centerline-wafer-type-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">valvola a farfalla wafer<\/a> si posiziona tra due flange di tubazione. I bulloni passanti lo fissano in posizione.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c8 il design pi\u00f9 leggero ed economico. Ideale per <a href=\"https:\/\/www.xintaivalves.com\/it\/blog\/valves-for-water-treatment\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/valves-for-water-treatment\/\" rel=\"noreferrer noopener\">trattamento dell&#039;acqua<\/a>, linee di lavorazione alimentare e di trasferimento chimico. Tuttavia, non \u00e8 adatto per servizio a fondo cieco. Entrambe le flange devono rimanere in posizione.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Questo tipo di valvola \u00e8 anche chiamato <strong>valvola BF<\/strong>. \u201cBF\u201d \u00e8 l'abbreviazione di \u201cButterfly\u201d. Tuttavia, produttori diversi hanno significati diversi a seconda del contesto del loro settore.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Una valvola a farfalla tipo lug ha inserti filettati nel corpo valvola che accettano bulloni da ciascuna flangia in modo indipendente. Ci\u00f2 consente la rimozione del tubo a valle senza disturbare la valvola.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le valvole tipo lug sono utilizzate dove l'accesso alla manutenzione \u00e8 frequente o dove \u00e8 necessario un isolamento a fondo cieco.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Flanged_Butterfly_Valve\"><\/span><strong>Valvola a farfalla flangiata<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Una valvola a farfalla flangiata ha flange integrate che si imbullonano direttamente alle flange del tubo corrispondenti. Questo design gestisce pressioni e temperature pi\u00f9 elevate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Questo design \u00e8 preferito per raffinerie, condotte petrolchimiche e processi industriali ad alto ciclo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Design a doppio e triplo eccentrico<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"300\" height=\"489\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756.webp\" alt=\"\" class=\"wp-image-15733\" style=\"aspect-ratio:0.6135250599145566;width:169px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756-184x300.webp 184w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724756-7x12.webp 7w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption class=\"wp-element-caption\">Valvola a farfalla doppia eccentrica<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Le valvole a doppio eccentrico (doppio offset) riducono l'usura della sede e sono adatte per la strozzatura a pressioni fino alla Classe 300.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le valvole a triplo eccentrico utilizzano una tenuta metallo-metallo. Gestiscono vapore, gas di scarico e fluidi abrasivi a temperature fino a 600\u00b0C. Queste valvole sono allineate con <strong>tipi di sedi per valvole a farfalla<\/strong> che richiedono sedi in lega dura anzich\u00e9 materiali elastomerici.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Butterfly_Valve_Seat_Types_and_Seat_Material_Compatibility_Chart\"><\/span><strong>Tipi di sedi per valvole a farfalla e tabella di compatibilit\u00e0 dei materiali delle sedi<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La sede crea la tenuta primaria tra il disco e il corpo valvola. Il materiale errato della sede causa guasti precoci, perdite o contaminazione chimica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I materiali delle sedi a cinque posti coprono la maggior parte delle applicazioni industriali. Ognuno ha un limite di temperatura definito e un profilo di compatibilit\u00e0 chimica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Questo <strong>tabella di compatibilit\u00e0 dei materiali delle sedi delle valvole a farfalla<\/strong> \u00e8 un punto di partenza. Per acidi concentrati o servizi con mezzi misti, richiedere una revisione della compatibilit\u00e0 dei materiali al proprio fornitore di valvole.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tabella di compatibilit\u00e0 dei materiali delle sedi delle valvole a farfalla<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Seat Material<\/strong><\/td><td><strong>Intervallo di temperatura<\/strong><\/td><td><strong>Mezzi compatibili<\/strong><\/td><td><strong>Evitare<\/strong><\/td><td><strong>Classe di pressione<\/strong><\/td><\/tr><tr><td><strong>EPDM<\/strong><\/td><td>Da -20\u00b0C a +120\u00b0C<\/td><td>Acqua, vapore, prodotti chimici blandi<\/td><td>Oli, solventi<\/td><td>PN10\u2013PN16<\/td><\/tr><tr><td><strong>NBR (Nitrile)<\/strong><\/td><td>Da -20\u00b0C a +80\u00b0C<\/td><td>Olio, gas, carburanti<\/td><td>Acidi, ozono<\/td><td>PN10\u2013PN16<\/td><\/tr><tr><td><strong>PTFE<\/strong><\/td><td><strong>Da -40\u00b0C a +180\u00b0C<\/strong><\/td><td><strong>Prodotti chimici, acidi, mezzi corrosivi<\/strong><\/td><td>Abrasivi<\/td><td>PN10\u2013PN25<\/td><\/tr><tr><td><strong>Viton (FKM)<\/strong><\/td><td>-20\u00b0C to +200\u00b0C<\/td><td>Solvents, acids, high-temp fluids<\/td><td>Ketones<\/td><td>PN10\u2013PN25<\/td><\/tr><tr><td><strong>Metal (Stainless \/ Alloy)<\/strong><\/td><td>Up to +600\u00b0C<\/td><td>Steam, high-temp gas, abrasive slurries<\/td><td>\u2014<\/td><td>Classe 150\u2013600<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PTFE seat temperature range<\/strong>: -40\u00b0C to +180\u00b0C (356\u00b0F). PTFE resists virtually all acids, solvents, and corrosive chemicals. It is the standard choice for chemical processing and high-purity pharmaceutical lines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EPDM is the workhorse seat for water and steam service up to 120\u00b0C. NBR handles hydrocarbon media well but degrades quickly in acid or ozone exposure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Viton (FKM) extends the working ceiling to 200\u00b0C. Use it for hot solvents and aggressive chemical service where PTFE seat limitations apply.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal seats (stainless or Stellite-overlay alloy) are specified for triple-eccentric valves in high-temperature steam, power generation, and abrasive slurry lines.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Five_Key_Influences_for_Right_Butterfly_Valve_Selection\"><\/span><strong>Cinque influenze chiave per la corretta selezione della valvola a farfalla<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you want your industrial piping system to run efficiently, follow this checklist for all your projects.&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fluid Characteristics. <\/strong>Identify temperature, pressure, viscosity, and chemical composition. Confirm whether the media contains solids or abrasive particles. These factors set both body material and seat material requirements.<\/li>\n\n\n\n<li><strong>Operating Pressure and Pressure Class. <\/strong>Match the valve pressure rating to the system design pressure. Common ratings: PN10, PN16, PN25, Class 150, and Class 300. Always include a safety margin above peak operating pressure.<\/li>\n\n\n\n<li><strong>Pipeline Size and Flow Rate. <\/strong>Valve bore must match pipe bore. Undersized valves create excessive pressure drop. Oversized valves lose throttling control at low flow.<\/li>\n\n\n\n<li><strong>End Connection Standard. <\/strong>Confirm the flange drilling pattern: ANSI\/ASME B16.5, DIN EN 1092-1, JIS B2220, or BS 4504. Mismatched standards require adapters and create leak points.<\/li>\n\n\n\n<li><strong>Actuation and Control Requirements. <\/strong>High-cycle or remote-controlled lines need pneumatic or electric actuators with ISO 5211 mounting pads and positioners. Low-cycle manual service uses a handwheel or gear operator.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Match_Butterfly_Valve_Specifications_to_Your_Industry\"><\/span><strong>Come abbinare le specifiche della valvola a farfalla alla tua industria\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-1024x512.webp\" alt=\"Abbina le specifiche della valvola a farfalla alla tua industria\" class=\"wp-image-15734\" style=\"width:608px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724757.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">There are very big differences in valve specifications depending on which industry you work in. The same valve type may require different seat, disc, or actuator types.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Below are real-world applications of butterfly valves:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Oil_and_Gas\"><\/span><strong>Olio e gas<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Specify triple-eccentric or <a href=\"https:\/\/www.xintaivalves.com\/it\/knowledge-center\/difference-between-double-offset-and-triple-offset-butterfly-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/knowledge-center\/difference-between-double-offset-and-triple-offset-butterfly-valve\/\" rel=\"noreferrer noopener\">doppio offset<\/a> valves with metal seats. API 609 compliance is mandatory. Working pressures often reach Class 300 or Class 600.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You may be aware of the <strong>XXV valve, <\/strong>which is a safety-critical emergency shutdown valve used in oil &amp; gas, chemical plants, and industrial facilities. The \u201cXXV\u201d designation represents a valve tagging system that clearly reflects function and safety criticality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Water_Treatment\"><\/span><strong>Trattamento delle acque<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Wafer valves with EPDM seats handle municipal water service. Specify NSF\/ANSI 61 certification for potable water contact. Verify leakage class per EN 12266-1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Chemical_Processing\"><\/span><strong>Elaborazione chimica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PTFE-lined or PTFE-seated valves are standard. The <strong>PTFE seat temperature range<\/strong> da -40\u00b0C a +180\u00b0C copre la maggior parte delle linee di processo chimico. Specificare un design del disco a passaggio totale per eliminare le zone morte.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Food_and_Beverage\"><\/span><strong>Cibo e bevande<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">I materiali della sede e del disco devono soddisfare la conformit\u00e0 FDA 21 CFR o EU 1935\/2004 per il contatto alimentare. Specificare finiture superficiali lisce (Ra \u2264 0,8 \u03bcm) per la pulibilit\u00e0 CIP\/SIP.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"HVAC_and_Building_Services\"><\/span><strong>HVAC e servizi di costruzione<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le valvole wafer con sedi in EPDM coprono la maggior parte dei circuiti di acqua refrigerata e acqua calda. Selezionare valvole con classe di pressione PN10 o PN16. Il peso ridotto e le dimensioni compatte faccia a faccia riducono i costi di installazione.<\/p>\n\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <title>Prodotto in evidenza<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n      font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins';\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #D70C19;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #D70C19;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.xintaivalves.com\/it\/product\/butterfly-valve\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/02\/%E5%AF%B9%E7%84%8A%E5%BC%8F%E4%B8%89%E5%81%8F%E5%BF%83%E5%A4%9A%E5%B1%82%E6%AC%A1%E7%A1%AC%E5%AF%86%E5%B0%81%E8%9D%B6%E9%98%80.jpg\" alt=\"Valvola a farfalla\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\ud83d\udee0 Valvola a farfalla<\/div>\n    <div class=\"hero-description\">Valvola a farfalla di precisione per un controllo efficiente della portata in una variet\u00e0 di applicazioni industriali. Prestazioni affidabili per sistemi ad alta e bassa pressione.<\/div>\n    <span class=\"hero-link\">Esplora il prodotto<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusione<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IL <strong>guida alla selezione delle valvole a farfalla<\/strong> aiuta ingegneri e team di approvvigionamento ad abbinare la valvola al sistema.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il fluido, la temperatura, la classe di pressione, il tipo di connessione e il tipo di attuazione sono i fattori che determineranno la valvola da utilizzare per la vostra applicazione. Tutti questi criteri devono essere soddisfatti quando si acquistano valvole.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/it\/\" target=\"_blank\" rel=\"noreferrer noopener\">Valvola Xintai<\/a> produce secondo gli standard di gestione della qualit\u00e0 ISO 9001. I nostri prodotti sono contrassegnati CE e sono fabbricati secondo gli standard API, ANSI, DIN, JIS e BS. Ci\u00f2 significa che le valvole Xintai si adattano ai sistemi di tubazioni internazionali senza hardware di conversione o adattatori personalizzati.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-red-background-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.xintaivalves.com\/it\/contact\/\" style=\"font-style:normal;font-weight:500\" target=\"_blank\" rel=\"noreferrer noopener\">Ottieni un preventivo<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Butterfly valves are quarter-turn valves widely utilized in flow control industrial applications.\u00a0 There are six criteria to be taken into account while selecting an appropriate valve for your project. Being a procurement engineer, you need to assess fluid type, pressure\/temperature, valve application, valve dimensions, compatibility with materials, and valve operation method. This butterfly valve selection [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15730,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-butterfly-valve"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/posts\/15729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/comments?post=15729"}],"version-history":[{"count":1,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/posts\/15729\/revisions"}],"predecessor-version":[{"id":15736,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/posts\/15729\/revisions\/15736"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/media\/15730"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/media?parent=15729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/categories?post=15729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/it\/wp-json\/wp\/v2\/tags?post=15729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}