{"id":26990,"date":"2016-11-22T15:40:47","date_gmt":"2016-11-22T14:40:47","guid":{"rendered":"https:\/\/www.at-fluidsolutions.com\/valvole\/valvole-di-non-ritorno\/"},"modified":"2026-08-09T17:55:40","modified_gmt":"2026-08-09T15:55:40","slug":"non-return-valves","status":"publish","type":"pneumatica","link":"https:\/\/www.at-fluidsolutions.com\/en\/pneumatica\/valves-and-electrovalves\/non-return-valves\/","title":{"rendered":"Non Return Valves"},"content":{"rendered":"<h3 data-path-to-node=\"6\">One-Way Flow Control and System Protection for Compressed Air<\/h3>\n<p data-path-to-node=\"7\">The <b data-path-to-node=\"7\" data-index-in-node=\"4\">VR Series<\/b> non-return valves (also known as <i data-path-to-node=\"7\" data-index-in-node=\"49\">check valves<\/i>) are essential components in industrial pneumatic circuits. Their primary function is to allow compressed air to flow in one direction while automatically blocking reverse flow, protecting upstream equipment from unwanted backpressure.<\/p>\n<h3 data-path-to-node=\"13\">Available Configurations and Threads<\/h3>\n<p data-path-to-node=\"14\">To ensure seamless integration into your pneumatic lines, the VR40 series comes in a variety of connection types and thread styles:<\/p>\n<ul data-path-to-node=\"15\">\n<li>\n<p data-path-to-node=\"15,0,0\"><b data-path-to-node=\"15,0,0\" data-index-in-node=\"0\">Male \/ Female Thread<\/b><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,1,0\"><b data-path-to-node=\"15,1,0\" data-index-in-node=\"0\">Male Thread \/ Push-in Tube Connection<\/b><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,2,0\"><b data-path-to-node=\"15,2,0\" data-index-in-node=\"0\">In-Line Tube \/ Tube Connection<\/b><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,3,0\">Multiple nominal sizes to accommodate various air flow demands.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":30106,"parent":31028,"menu_order":21,"template":"","tipologia_valvole":[822,830,868],"dimensione_valvole":[850,831,832,834,838,839,848,849],"funzione_valvole":[],"tipologia_attuatori":[],"diametro_attuatori":[],"tipologia_trattamenti":[],"dimensione_trattamenti":[],"catgorie_pneumatica":[1079],"class_list":["post-26990","pneumatica","type-pneumatica","status-publish","has-post-thumbnail","hentry","tipologia_valvole-accessories","tipologia_valvole-auxiliary-valves","tipologia_valvole-non-return-valves","dimensione_valvole-o8-mm-tube","dimensione_valvole-g1-8","dimensione_valvole-g1-4","dimensione_valvole-m5","dimensione_valvole-g3-8","dimensione_valvole-g1-2","dimensione_valvole-o4-mm-tube","dimensione_valvole-o6-mm-tube","catgorie_pneumatica-valves-and-electrovalves"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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