{"id":20943,"date":"2026-08-17T14:28:53","date_gmt":"2026-08-17T14:28:53","guid":{"rendered":"https:\/\/www.poolparthub.com\/?post_type=product&#038;p=20943"},"modified":"2026-09-21T13:13:07","modified_gmt":"2026-09-21T13:13:07","slug":"valvola-di-non-ritorno-amita-per-gfr-1-pollice-filettatura-femmina-6-bar-dn25-nera","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/it\/product\/amita-non-return-valve-pa-gfr-1-inch-female-thread-6-bar-dn25-black\/","title":{"rendered":"Valvola di non ritorno Amita PA GFR, 1 pollice, filettatura femmina, 6 bar, DN25, nera"},"content":{"rendered":"<h2>Valvola di non ritorno Amita DN25 in poliammide rinforzata con fibra di vetro, filettatura femmina BSP da 1 pollice<\/h2>\n<p>Questa valvola di ritegno in linea impedisce il riflusso negli impianti idrici in pressione grazie al suo corpo compatto, composto da due parti e stampato in poliammide rinforzata con fibra di vetro (PA-GF). Il materiale combina la resistenza chimica delle materie plastiche tecniche con una rigidit\u00e0 e una resistenza agli urti notevolmente superiori rispetto alla PA standard, rendendolo particolarmente adatto alle linee di circolazione delle piscine, alle condotte di irrigazione e agli impianti di fertirrigazione delle serre, dove la leggerezza e l\u2019immunit\u00e0 alla corrosione sono prioritarie rispetto ai raccordi metallici.<\/p>\n<p>Entrambe le porte sono dotate di filettatura BSP femmina da 1 pollice, il che consente l\u2019installazione diretta tra adattatori per tubi con filettatura maschio standard o uscite di pompe senza bisogno di riduttori. Il disco in NBR caricato a molla si apre a una bassa pressione di apertura compresa tra 0,025 e 0,035 bar, garantendo una restrizione minima al flusso in avanti alla portata nominale di 17,9 m\u00b3\/h, chiudendosi al contempo in modo affidabile contro una pressione di sistema fino a 6 bar. La molla interna in acciaio inossidabile 316 resiste alla corrosione nell\u2019intero intervallo di temperature di esercizio compreso tra 0 \u00b0C e 70 \u00b0C, coprendo applicazioni che vanno dall\u2019alimentazione di acqua fredda al ritorno dell\u2019acqua calda delle piscine.<\/p>\n<h3>Specifiche tecniche<\/h3>\n<ul>\n<li>Tipo \/ Serie: Amita<\/li>\n<li>Diametro nominale: DN25<\/li>\n<li>Tipo di raccordo: filettatura femmina, 1 pollice BSP (entrambe le estremit\u00e0)<\/li>\n<li>Lunghezza totale: 81 mm<\/li>\n<li>Materiale del corpo: PA rinforzato con fibra di vetro (PA-GF), nero<\/li>\n<li>Materiale della molla: acciaio inossidabile 316<\/li>\n<li>Materiale della guarnizione \/ del disco: NBR<\/li>\n<li>Pressione massima di esercizio: 6 bar<\/li>\n<li>Pressione di fessurazione: 0,025\u20130,035 bar<\/li>\n<li>Portata massima: 17,9 m\u00b3\/h<\/li>\n<li>Intervallo di temperatura di funzionamento: da 0 \u00b0C a 70 \u00b0C<\/li>\n<li>Colore: Nero<\/li>\n<\/ul>\n<h3>Compatibilit\u00e0<\/h3>\n<p>Adatto per acqua potabile fredda, acqua di piscina e impianti di irrigazione che utilizzano raccordi per tubi con filettatura maschio BSP da 1 pollice o attacchi per pompe (DN25). Compatibile con l\u2019acqua di piscina clorata entro i limiti di temperatura e pressione indicati. Non raccomandato per un funzionamento continuo a temperature superiori a 70 \u00b0C o per fluidi chimicamente incompatibili con le guarnizioni in NBR o con la poliammide (ad es. solventi concentrati, idrocarburi aromatici). Il flusso \u00e8 unidirezionale; \u00e8 necessario rispettare il corretto orientamento di installazione (freccia o bocca di ingresso rivolta verso l\u2019uscita della pompa).<\/p>","protected":false},"excerpt":{"rendered":"<p>Amita DN25 Non-Return Valve in Glass Fibre Reinforced Polyamide, 1 inch BSP Female Thread This inline check valve prevents backflow in pressurised water systems with a compact, two-part body moulded from glass fibre reinforced polyamide (PA-GF). The material combines the chemical resistance of engineering plastics with significantly greater rigidity and impact strength than standard PA,<a href=\"https:\/\/www.poolparthub.com\/it\/product\/amita-non-return-valve-pa-gfr-1-inch-female-thread-6-bar-dn25-black\/\">Continua a leggere <span class=\"sr-only\">&#8220;Amita Non-Return Valve PA GFR 1 inch Female Thread 6 bar DN25 Black&#8221;<\/span><\/a><\/p>","protected":false},"featured_media":20944,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"bwfblock_default_font":"","inline_featured_image":false},"product_brand":[1889],"product_cat":[2098],"product_tag":[],"class_list":["post-20943","product","type-product","status-publish","has-post-thumbnail","product_brand-amita","product_cat-products-plumbing","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":{"pph_product_template":false,"pph_extra_parts_check":"","pph_spare_parts":null,"pph_extra_spare_parts":null,"extra_product_tabs":null,"main_product_link":null,"restock_info":"","exploded_view_link":null,"details_product":[{"text_details_type":"yes","text_details_product":"Ultra-low cracking pressure (0.025\u20130.035 bar) minimises head loss at startup"},{"text_details_type":"yes","text_details_product":"Glass fibre reinforced PA body resists corrosion and pool chemicals without the weight of brass"},{"text_details_type":"yes","text_details_product":"Stainless steel 316 spring ensures long service life in wet, chlorinated environments"},{"text_details_type":"yes","text_details_product":"Compact 81 mm overall length fits tight pump-room installations"},{"text_details_type":"yes","text_details_product":"Standard 1 inch BSP female ports integrate directly with common pool and irrigation fittings"},{"text_details_type":"no","text_details_product":"One-directional flow only \u2014 incorrect installation causes immediate blockage"},{"text_details_type":"no","text_details_product":"Maximum 70 \u00b0C limits use to cold and warm water; not suitable for hot-water systems"},{"text_details_type":"no","text_details_product":"PA-GF body is not solvent-weldable; connection relies solely on thread seal (PTFE tape or hemp required)"}],"details_product_exploded":null,"pph_card_badge_use_custom":false,"pph_card_badge_text":"","pph_card_badge_background_color":"#ADC2F7","pph_card_badge_border_color":"#ADC2F7","pph_card_badge_text_color":"#2B46AB"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.4 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Amita Non-Return Valve PA GFR 1 inch Female Thread 6 bar DN25 Black | PoolPartHub<\/title>\n<meta name=\"description\" content=\"Amita DN25 non-return valve in glass fibre reinforced PA, 1 inch BSP female thread, 6 bar rated \u2014 prevents backflow with just 0.025 bar cracking pressure.\" \/>\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.poolparthub.com\/it\/product\/valvola-di-non-ritorno-amita-per-gfr-1-pollice-filettatura-femmina-6-bar-dn25-nera\/\" \/>\n<meta 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