{"id":2310,"date":"2026-07-10T11:24:00","date_gmt":"2026-07-10T03:24:00","guid":{"rendered":"https:\/\/onerovalve.com\/?p=2310"},"modified":"2026-07-24T13:44:50","modified_gmt":"2026-07-24T05:44:50","slug":"bsp-vs-npt","status":"publish","type":"post","link":"https:\/\/www.onerovalve.com\/it\/blog\/bsp-vs-npt\/","title":{"rendered":"BSP vs NPT: qual \u00e8 la differenza?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Quando si ha a che fare con connessioni filettate di tubi, probabilmente vi siete imbattuti nei termini filettatura BSP e raccordo NPT. Questi due standard di filettatura sono ampiamente utilizzati nelle applicazioni di tubazioni e valvole industriali, ma non sono intercambiabili. Comprendere le loro differenze \u00e8 essenziale per selezionare il raccordo giusto per il vostro sistema.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In questo articolo, analizzeremo BSP vs NPT, analizzandone la struttura, l&#039;utilizzo, la compatibilit\u00e0 e come identificarli. Se sei alle prime armi con le tubazioni industriali o hai bisogno di un rapido ripasso, questa guida semplifica tutto ci\u00f2 che devi sapere.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Cosa significa TNP?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">NPT (National Pipe Thread) \u00e8 il tipo di filettatura standard utilizzato principalmente negli Stati Uniti per i raccordi per tubi. Presenta un design conico, che consente di creare una tenuta stagna e a prova di perdite quando abbinato a un raccordo corrispondente.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Angolo del filetto:<\/strong> 60\u00b0<\/li>\n\n\n\n<li><strong>Forma:<\/strong> Cime e valli appiattite<\/li>\n\n\n\n<li><strong>Meccanismo di tenuta:<\/strong> Richiede un sigillante per filettature (ad esempio, nastro in teflon) per garantire una connessione senza perdite<\/li>\n\n\n\n<li><strong>Comunemente usato in:<\/strong> Impianti idraulici, gasdotti e applicazioni industriali negli Stati Uniti<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Tipi di filettature NPT<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>NPT (National Pipe Tapered)<\/strong> \u2013 Utilizzato per applicazioni a pressione, garantisce una tenuta stagna tramite rastremazione.<\/li>\n\n\n\n<li><strong>NPS (tubo nazionale dritto)<\/strong> \u2013 Un&#039;alternativa con filettatura dritta che richiede un O-ring o una guarnizione per evitare perdite.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Cos&#039;\u00e8 una filettatura BSP?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">BSP (British Standard Pipe) \u00e8 lo standard di filettatura utilizzato nel Regno Unito, in Australia e in molti altri paesi. A differenza di NPT, BSP \u00e8 disponibile in due varianti: BSPT (conico) e BSPP (parallelo).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Angolo del filetto:<\/strong> 55\u00b0<\/li>\n\n\n\n<li><strong>Forma:<\/strong> Cime e valli arrotondate<\/li>\n\n\n\n<li><strong>Meccanismo di tenuta:<\/strong>\n<ul class=\"wp-block-list\">\n<li>BSPT richiede un sigillante per filettature (simile a NPT)<\/li>\n\n\n\n<li>BSPP richiede una guarnizione incollata o un O-ring<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Comunemente usato in:<\/strong> Europa, Asia, Australia e settori come il trattamento delle acque e i sistemi idraulici<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Tipi di filettature BSP<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>BSPT (tubo conico standard britannico)<\/strong> \u2013 Sigilla tramite interferenza della filettatura e richiede sigillante.<\/li>\n\n\n\n<li><strong>BSPP (British Standard Pipe Parallel)<\/strong> \u2013 Utilizza una rondella o un O-ring per la tenuta anzich\u00e9 l&#039;interferenza della filettatura.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>BSP vs NPT: differenze principali<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Per identificare rapidamente se un raccordo per tubi \u00e8 BSP o NPT, considerare le seguenti differenze:<\/p>\n\n\n\n<div class=\"ovm-table-wrap\">\n<style>\n.ovm-table-wrap{margin:24px 0;overflow-x:auto;border-radius:10px;box-shadow:0 3px 14px rgba(15,35,65,.08);}\n.ovm-table{width:100%;border-collapse:collapse;font-size:14px;min-width:600px;background:#fff;}\n.ovm-table thead th{background:#0b3a66 !important;color:#ffffff !important;text-align:center !important;vertical-align:middle;padding:12px 14px;font-size:13.5px;font-weight:600;letter-spacing:.3px;border:none !important;}\n.ovm-table thead th:first-child{border-top-left-radius:10px;}\n.ovm-table thead th:last-child{border-top-right-radius:10px;}\n.ovm-table tbody td{padding:12px 14px;border-bottom:1px solid #e6ebf1;color:#3d4a5c !important;text-align:center !important;vertical-align:middle;background:transparent;}\n.ovm-table tbody th{padding:12px 14px;border-bottom:1px solid #e6ebf1;color:#0b3a66 !important;text-align:left !important;vertical-align:middle;background:#f6f9fc !important;font-weight:600;}\n.ovm-table tbody tr:hover td, .ovm-table tbody tr:hover th{background:#eaf2fa !important;}\n.ovm-table tbody tr.ovm-new th, .ovm-table tbody tr.ovm-new td{background:#e5f0fb !important;}\n.ovm-table tbody tr.ovm-new th{border-left:3px solid #0b5fa5;}\n<\/style>\n<table class=\"ovm-table\">\n<thead>\n<tr><th>Caratteristica<\/th><th>Filettatura BSP<\/th><th>Filettatura NPT<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><th>Angolo del filo<\/th><td>55\u00b0<\/td><td>60\u00b0<\/td><\/tr>\n<tr class=\"ovm-new\"><th>Filetti per pollice (TPI)<\/th><td>11 TPI (tipico)<\/td><td>11,5 TPI (tipico)<\/td><\/tr>\n<tr><th>Forma del filo<\/th><td>Cime e valli arrotondate<\/td><td>Cime e valli piatte<\/td><\/tr>\n<tr><th>Conico o parallelo?<\/th><td>BSPT (conico) e BSPP (parallelo)<\/td><td>Sempre conico (tranne NPS)<\/td><\/tr>\n<tr><th>Sigillatura<\/th><td>BSPP richiede un O-ring; BSPT richiede sigillante<\/td><td>Richiede sigillante per filettature<\/td><\/tr>\n<tr><th>Uso geografico<\/th><td>Regno Unito, Australia, Europa, Asia<\/td><td>Stati Uniti, Canada<\/td><\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>BSP e NPT sono compatibili?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No, le filettature BSP e NPT non sono compatibili a causa delle diverse angolazioni, forme e meccanismi di tenuta. Anche se apparentemente si adattassero, non creerebbero una tenuta adeguata, causando perdite o guasti al sistema. Se \u00e8 necessario collegare componenti BSP e NPT, utilizzare sempre un adattatore BSP-NPT dedicato anzich\u00e9 forzare l&#039;accoppiamento delle filettature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Eccezione:<\/strong> In alcuni casi \u00e8 possibile utilizzare BSPT e NPT insieme in applicazioni a bassa pressione, ma questa soluzione non \u00e8 consigliata per sistemi critici o ad alta pressione.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Come identificare i filetti BSP vs NPT<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Per determinare se si sta lavorando con thread BSP o NPT:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Controllare l&#039;angolo del filo<\/strong> \u2013 Utilizzare un calibro per filettature per misurare l&#039;angolo (55\u00b0 = BSP, 60\u00b0 = NPT).<\/li>\n\n\n\n<li><strong>Osserva la forma<\/strong> \u2013 Le filettature BSP hanno filettature arrotondate, mentre le filettature NPT hanno punte affilate e piatte.<\/li>\n\n\n\n<li><strong>Misurare la conicit\u00e0<\/strong> \u2013 Se \u00e8 parallelo, probabilmente \u00e8 BSPP; se \u00e8 rastremato, potrebbe essere BSPT o NPT.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Applicazioni industriali di filettature BSP e NPT<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Dove vengono utilizzati i raccordi NPT?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Impianti idraulici (acquedotti e gasdotti)<\/li>\n\n\n\n<li>Industrie del petrolio e del gas<\/li>\n\n\n\n<li>Sistemi di compressione dell&#039;aria<\/li>\n\n\n\n<li>Valvole a sfera industriali<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Dove vengono utilizzate le filettature BSP?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sistemi idraulici e pneumatici<\/li>\n\n\n\n<li>Impianti di trattamento delle acque<\/li>\n\n\n\n<li>Irrigazione agricola<\/li>\n\n\n\n<li>Valvole a sfera industriali nei mercati non statunitensi<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Domande frequenti<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Cosa significa TNP?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">NPT sta per <strong>Filettatura nazionale per tubi<\/strong>, lo standard statunitense per le filettature coniche dei tubi, utilizzato principalmente in applicazioni industriali e idrauliche.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00c8 possibile mescolare filettature BSP e NPT?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No, le filettature BSP e NPT hanno angoli e meccanismi di tenuta diversi, il che le rende incompatibili.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Come faccio a identificare un thread BSP?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Controllare che l&#039;angolo della filettatura sia di 55\u00b0 e che i picchi siano arrotondati. Se la filettatura \u00e8 parallela, \u00e8 BSPP; se \u00e8 rastremata, \u00e8 BSPT.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>I raccordi NPT necessitano di sigillante?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00ec, i raccordi NPT richiedono un sigillante per filettature, come nastro in Teflon o sigillante per tubi, per evitare perdite.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quali settori utilizzano BSP e NPT?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Il BSP \u00e8 diffuso in Europa, Australia e Asia, mentre il NPT \u00e8 utilizzato principalmente negli Stati Uniti e in Canada per tubazioni industriali e sistemi di gas.<\/p>\n\n\n\n<div class=\"ovm-cta-block\">\n<style>\n.ovm-cta-block{margin:32px 0;background:#eaf2fa;border:1px solid #cfe0f0;border-radius:14px;padding:36px 32px;color:#0b3a66;box-shadow:0 3px 14px rgba(11,58,102,.08);}\n.ovm-cta-block h2{color:#0b3a66 !important;font-size:22px;margin:0 0 14px;}\n.ovm-cta-block p{color:#3d4a5c;font-size:14.5px;line-height:1.65;margin:0 0 18px;}\n.ovm-cta-range-title{margin:0 0 14px;font-weight:600;color:#0b3a66;font-size:15px;}\n.ovm-cta-range-title a{color:#0b5fa5;text-decoration:underline;text-underline-offset:3px;}\n.ovm-cta-range-title a:hover{color:#0b3a66;}\n.ovm-cta-flow{margin:0 0 22px;}\n.ovm-cta-flow-item{display:flex;align-items:flex-start;gap:14px;background:#ffffff;border:1px solid #dce5ee;border-radius:8px;padding:14px 16px;margin-bottom:10px;box-shadow:0 1px 3px rgba(15,35,65,.05);}\n.ovm-cta-flow-item:last-child{margin-bottom:0;}\n.ovm-cta-flow-dot{flex:none;width:10px;height:10px;border-radius:50%;background:#0b5fa5;margin-top:6px;}\n.ovm-cta-flow-text{font-size:13.5px;color:#3d4a5c;line-height:1.5;}\n.ovm-cta-flow-text strong{color:#0b3a66;}\n.ovm-cta-btn{display:inline-block;background:#0b5fa5;color:#ffffff !important;font-weight:700;font-size:14px;padding:12px 28px;border-radius:6px;text-decoration:none;transition:background .15s ease;}\n.ovm-cta-btn:hover{background:#0b3a66;}\n<\/style>\n\n<h2>Perch\u00e9 scegliere Onero Valve per le tue esigenze di valvole a sfera industriali?<\/h2>\n<p>Noi di Onero Valve, ogni valvola a sfera del nostro catalogo pu\u00f2 essere configurata con connessioni filettate BSP o NPT per adattarsi allo standard di tubazione regionale, senza bisogno di adattatori. In qualit\u00e0 di produttore affidabile con certificazioni ISO9001, API6D e CE, garantiamo precisione, durata e prestazioni in ogni prodotto.<\/p>\n\n<p class=\"ovm-cta-range-title\"><a href=\"https:\/\/www.onerovalve.com\/it\/products\/\" target=\"_blank\" rel=\"noopener\">La nostra gamma di prodotti comprende:<\/a><\/p>\n<div class=\"ovm-cta-flow\">\n<div class=\"ovm-cta-flow-item\"><span class=\"ovm-cta-flow-dot\"><\/span><span class=\"ovm-cta-flow-text\"><strong>Valvole a sfera flottanti<\/strong> \u2014 Autoregolante e compatto per svariate applicazioni industriali.<\/span><\/div>\n<div class=\"ovm-cta-flow-item\"><span class=\"ovm-cta-flow-dot\"><\/span><span class=\"ovm-cta-flow-text\"><strong>Valvole a sfera Trunnion<\/strong> \u2014 Stabile ad alta pressione.<\/span><\/div>\n<div class=\"ovm-cta-flow-item\"><span class=\"ovm-cta-flow-dot\"><\/span><span class=\"ovm-cta-flow-text\"><strong>Valvole a sfera con ingresso dall&#039;alto<\/strong> \u2014 Manutenzione semplificata grazie al design con accesso dall&#039;alto.<\/span><\/div>\n<div class=\"ovm-cta-flow-item\"><span class=\"ovm-cta-flow-dot\"><\/span><span class=\"ovm-cta-flow-text\"><strong>Valvole a sfera con sede rigida<\/strong> \u2014 Maggiore resistenza per ambienti estremi.<\/span><\/div>\n<div class=\"ovm-cta-flow-item\"><span class=\"ovm-cta-flow-dot\"><\/span><span class=\"ovm-cta-flow-text\"><strong>Valvole a sfera completamente saldate<\/strong> \u2014 Massima prevenzione delle perdite grazie al corpo monoblocco.<\/span><\/div>\n<\/div>\n\n<p>Con oltre trent&#039;anni di esperienza, Onero Valve \u00e8 leader del settore grazie a processi produttivi all&#039;avanguardia, innovazione e garanzia di qualit\u00e0. Che abbiate bisogno di raccordi BSP o NPT, vi offriamo la soluzione migliore, personalizzata in base alle vostre esigenze. Contattateci oggi stesso per trovare la valvola a sfera industriale pi\u00f9 adatta alla vostra applicazione!<\/p>\n\n<a href=\"https:\/\/www.onerovalve.com\/it\/\" target=\"_blank\" rel=\"noopener\" class=\"ovm-cta-btn\">Visita Onero Valve<\/a>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Perch\u00e9 scegliere Onero Valve per le tue esigenze di valvole a sfera industriali?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Presso Onero Valve, ogni valvola a sfera nel nostro catalogo pu\u00f2 essere <a href=\"https:\/\/www.onerovalve.com\/it\/contact\/\" data-type=\"link\" data-id=\"https:\/\/onerovalve.com\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">configurato con connessioni filettate BSP o NPT<\/a> per adattarsi allo standard regionale delle tubazioni: non sono necessari adattatori. In qualit\u00e0 di produttore affidabile con certificazioni ISO9001, API6D e CE, garantiamo precisione, durata e prestazioni in ogni prodotto. In qualit\u00e0 di produttore affidabile con certificazioni ISO9001, API6D e CE, garantiamo precisione, durata e prestazioni in ogni prodotto.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.onerovalve.com\/it\/products\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>La nostra gamma di prodotti comprende:<\/strong><\/a><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Valvole a sfera flottanti<\/strong> \u2013 Autoregolante e compatto per varie applicazioni industriali.<\/li>\n\n\n\n<li><strong>Valvole a sfera Trunnion<\/strong> \u2013 Stabile ad alta pressione.<\/li>\n\n\n\n<li><strong>Valvole a sfera con ingresso dall&#039;alto<\/strong> \u2013 Facile manutenzione grazie al design con accesso dall\u2019alto.<\/li>\n\n\n\n<li><strong>Valvole a sfera con sede rigida<\/strong> \u2013 Maggiore durata per ambienti estremi.<\/li>\n\n\n\n<li><strong>Valvole a sfera completamente saldate<\/strong> \u2013 Massima prevenzione delle perdite grazie al corpo monoblocco.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Con oltre tre decenni di esperienza, Onero Valve \u00e8 leader del settore con produzione avanzata, innovazione e garanzia di qualit\u00e0. Che tu abbia bisogno di raccordi BSP o NPT, forniamo la migliore soluzione su misura per le tue esigenze. Contattaci oggi stesso per trovare la valvola a sfera industriale giusta per la tua applicazione!<a href=\"https:\/\/www.onerovalve.com\/it\/\" target=\"_blank\" rel=\"noreferrer noopener\"> Visita Onero Valve<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>When dealing with pipe thread connections, you\u2019ve likely come across the terms BSP thread and NPT fitting. These two threading standards are widely used in industrial<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":2312,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2310","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BSP vs NPT Thread: Differences, Sizes &amp; Which to Choose<\/title>\n<meta name=\"description\" content=\"BSP and NPT threads aren&#039;t interchangeable. See the full comparison table (angle, TPI, sealing) and find valves pre-configured for either standard.\" \/>\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.onerovalve.com\/it\/blog\/bsp-vs-npt\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"BSP vs NPT Thread: Differences, Sizes &amp; Which to Choose\" \/>\n<meta property=\"og:description\" content=\"BSP and NPT threads aren&#039;t interchangeable. 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