{"id":9359,"date":"2026-03-03T09:22:23","date_gmt":"2026-03-03T09:22:23","guid":{"rendered":"https:\/\/www.poolparthub.com\/?post_type=product&#038;p=9359"},"modified":"2026-03-24T10:06:29","modified_gmt":"2026-03-24T10:06:29","slug":"astralpool-clear-series-check-valve-o-50","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/nl\/product\/astralpool-clear-series-check-valve-o-50\/","title":{"rendered":"AstralPool Clear Series check valve \u00d8 50"},"content":{"rendered":"<h2>AstralPool Clear Series check valve \u00d8 50<\/h2>\n<p>\nThe AstralPool Clear Series check valve \u00d8 50 is a transparent non return valve for 50 mm pool pipework. Its clear PVC body and lid give full visibility of the internal flap and water flow, so you can instantly see whether the valve is open or closed, which simplifies inspection and fault finding in compact plant rooms.\n<\/p>\n<h3>Full flap opening with minimal pressure loss<\/h3>\n<p>\nThe Clear Series design uses a wide opening flap that only needs a small pressure difference to open. Once in the open position, the flap lifts almost completely out of the flow path, which keeps head loss very low as water passes through. This helps maintain pump performance and overall hydraulic efficiency in filtration, heating and treatment circuits without unnecessary pressure drop.\n<\/p>\n<h3>Transparent body for 360 degree visibility<\/h3>\n<p>\nThe AstralPool Clear Series check valve \u00d8 50 is manufactured with a fully transparent PVC U body and clear lid. This makes it possible to check flow direction, valve movement and the presence of air or debris from any angle without dismantling the pipework. The valve also acts as a compact sight glass in the line and is especially useful on suction or return lines where visual confirmation of flow is important.\n<\/p>\n<h3>Easy maintenance with removable lid and unions<\/h3>\n<p>\nFor quick access, the valve features a removable threaded lid that can be opened without tools. Interchangeable unions on both sides allow the valve to be removed from the installation when needed, while the internal flap and sealing components can be cleaned or replaced in a few simple steps.\n<\/p>\n<ul>\n<li>Tool free threaded locking ring for fast lid removal.<\/li>\n<li>Union connections on inlet and outlet for easy installation.<\/li>\n<li>Internal parts accessible for cleaning and replacement without modifying the rest of the system.<\/li>\n<\/ul>\n<h3>Durable PVC U construction for saltwater use<\/h3>\n<p>\nThe AstralPool Clear Series check valve \u00d8 50 is made entirely from PVC U with high chemical and mechanical resistance for pool environments. A coated internal spring protects against corrosion, making the valve suitable for installations with salt chlorinators and for seawater applications. The maximum working pressure is 3.5 bar within a typical operating temperature range of 10 to 30 \u00b0C in swimming pool systems.\n<\/p>\n<h3>Installation options and typical applications<\/h3>\n<p>\nWith 50 mm union connections, this check valve is ideal for medium sized pool pipework where backflow must be prevented. It allows water to flow only in the intended direction and blocks reverse flow when the pump stops, helping to protect equipment and maintain priming where needed.\n<\/p>\n<ul>\n<li>For use on \u00d8 50 mm PVC pool lines.<\/li>\n<li>Available in versions with or without spring depending on installation orientation.<\/li>\n<li>Spring version suitable for vertical or horizontal mounting; non spring version for vertical lines with upward flow.<\/li>\n<\/ul>\n<p>\nTypical positions include between pump and filter, upstream of a heat pump or special treatment device, or on lines where preventing reverse flow and having visual confirmation of operation are both important.<\/p>","protected":false},"excerpt":{"rendered":"<p>AstralPool Clear Series check valve \u00d8 50 The AstralPool Clear Series check valve \u00d8 50 is a transparent non return valve for 50 mm pool pipework. Its clear PVC body and lid give full visibility of the internal flap and water flow, so you can instantly see whether the valve is open or closed, which<a href=\"https:\/\/www.poolparthub.com\/nl\/product\/astralpool-clear-series-check-valve-o-50\/\">Continue reading <span class=\"sr-only\">&#8220;AstralPool Clear Series check valve \u00d8 50&#8221;<\/span><\/a><\/p>","protected":false},"featured_media":9353,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"bwfblock_default_font":"","inline_featured_image":false},"product_brand":[920],"product_cat":[15],"product_tag":[],"class_list":["post-9359","product","type-product","status-publish","has-post-thumbnail","product_brand-astralpool","product_cat-uncategorized","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":{"pph_product_template":"standard","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":"","details_product":[{"text_details_type":"yes","text_details_product":"Transparent body and lid provide 360\u00b0 visual flow control "},{"text_details_type":"yes","text_details_product":"Wide opening flap gives very low pressure loss in operation "},{"text_details_type":"yes","text_details_product":"Tool free threaded lid and unions simplify inspection and cleaning "},{"text_details_type":"yes","text_details_product":"PVC U body and coated spring suitable for salt and seawater use"},{"text_details_type":"no","text_details_product":"Maximum working pressure limited to typical pool system ranges "},{"text_details_type":"no","text_details_product":"Requires correct orientation and positioning to function optimally"}],"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 v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>AstralPool Clear Series check valve \u00d8 50 | PoolPartHub<\/title>\n<meta name=\"description\" content=\"AstralPool Clear Series check valve \u00d8 50 with transparent body, low pressure loss and tool free lid. Non return valve for 50 mm pool lines and saltwater systems.\" \/>\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\/nl\/product\/astralpool-clear-series-check-valve-o-50\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AstralPool Clear Series check valve \u00d8 50\" \/>\n<meta property=\"og:description\" content=\"AstralPool Clear Series check valve \u00d8 50 with transparent body, low pressure loss and tool free lid. 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