{"id":8836,"date":"2026-02-17T13:05:17","date_gmt":"2026-02-17T13:05:17","guid":{"rendered":"https:\/\/www.poolparthub.com\/?post_type=product&#038;p=8836"},"modified":"2026-03-24T10:10:10","modified_gmt":"2026-03-24T10:10:10","slug":"astralpool-impeller-1-hp-50-hz-4405010416","status":"publish","type":"product","link":"https:\/\/www.poolparthub.com\/nl\/product\/astralpool-impeller-1-hp-50-hz-4405010416\/","title":{"rendered":"Astralpool impeller 1 HP 50 Hz &#8211; 4405010416"},"content":{"rendered":"<h2>Astralpool impeller 1 HP 50 Hz 4405010416<\/h2>\n<p>\nThe Astralpool impeller 1 HP 50 Hz 4405010416 is the original replacement rotor for selected Astralpool pool pumps equipped with a<br \/>\n1 horsepower, 50 hertz motor. This hydraulic component generates the flow and pressure needed for daily filtration, and replacing a<br \/>\nworn or damaged impeller is essential to restore the pump\u2019s original performance on compatible residential pool installations.\n<\/p>\n<h3>Function of the Astralpool 1 HP 50 Hz impeller<\/h3>\n<p>\nInside the pump wet end, the impeller is mounted directly on the motor shaft and rotates at high speed. As it turns, it draws water in<br \/>\nthrough the suction port and pushes it out towards the diffuser and discharge. The specific geometry of the Astralpool impeller 1 HP<br \/>\n50 Hz 4405010416 is matched to the 50 hertz motor speed and to the pump body, so the filtration system delivers the designed flow rate<br \/>\nand head for a 1 HP 50 Hz configuration.\n<\/p>\n<p>\nA correctly sized and undamaged impeller helps the pump to prime quickly, maintain strong suction at skimmers and drains and circulate<br \/>\nwater efficiently through the filter, heater and treatment equipment.\n<\/p>\n<h3>Design and construction<\/h3>\n<p>\nThe Astralpool impeller 1 HP 50 Hz 4405010416 is moulded from high quality plastic designed for long term use in treated pool water.<br \/>\nIts blades and hub are precisely shaped so that clearances with the diffuser and pump housing remain within the tolerances defined by<br \/>\nthe manufacturer.\n<\/p>\n<ul>\n<li>Durable plastic body suitable for properly balanced chlorinated or saltwater pools.<\/li>\n<li>Vane profile optimised for 1 HP 50 Hz operation on compatible Astralpool pumps.<\/li>\n<li>Central hub shaped for secure mounting on the motor shaft using the original fixing system.<\/li>\n<li>Balanced construction to support smooth, low vibration running when installed correctly.<\/li>\n<\/ul>\n<h3>Compatibility and typical applications<\/h3>\n<p>\nThis impeller is intended for specific Astralpool pool pumps that list reference 4405010416 in their exploded view or spare parts list<br \/>\nfor the 1 HP 50 Hz version. It is typically used in small to medium residential pools where the pump provides circulation through sand,<br \/>\nglass or cartridge filters.\n<\/p>\n<ul>\n<li>Compatible with Astralpool circulation pumps configured with a 1 HP 50 Hz motor.<\/li>\n<li>Suitable for in ground or above ground pools that match the pump\u2019s performance range.<\/li>\n<li>Direct replacement part for installations using the original 4405010416 impeller.<\/li>\n<\/ul>\n<p>\nBefore ordering, always check the pump identification label and compare with the official parts diagram to confirm that 4405010416 is<br \/>\nthe correct impeller reference for your model.\n<\/p>\n<h3>When to replace the impeller 4405010416<\/h3>\n<p>\nEven though it is protected inside the housing, the impeller works at high speed and can be affected over time by fine abrasive<br \/>\nparticles, occasional cavitation and normal mechanical stress. Visible damage or subtle wear quickly reduces flow and pressure.\n<\/p>\n<ul>\n<li>Loss of flow or filter pressure even though the prefilter basket and filter are clean.<\/li>\n<li>Cracks, chips or missing sections on the impeller blades.<\/li>\n<li>Erosion or rounding of the vane edges and hub contact surfaces.<\/li>\n<li>New vibration or rattling noises coming from the pump body.<\/li>\n<\/ul>\n<p>\nReplacing a tired or damaged impeller with the original Astralpool impeller 1 HP 50 Hz 4405010416 is one of the most effective ways to<br \/>\nrecover the pump\u2019s designed hydraulic performance.\n<\/p>\n<h3>Installation recommendations<\/h3>\n<p>\nInstallation of the Astralpool impeller 1 HP 50 Hz 4405010416 should always take place with the pump isolated electrically and the<br \/>\nhydraulic circuit depressurised. The operation is often combined with replacement of the mechanical seal and nearby gaskets to avoid<br \/>\nrepeated disassembly.\n<\/p>\n<ul>\n<li>Switch off the power supply, close isolation valves and drain the pump housing completely.<\/li>\n<li>Remove the prefilter lid and basket, then separate the wet end from the motor according to the pump instructions.<\/li>\n<li>Hold the motor shaft at the rear or on the flats provided and unscrew or unclip the old impeller.<\/li>\n<li>Inspect the mechanical seal and diffuser and replace them if they show signs of wear or damage.<\/li>\n<li>Fit the new impeller 4405010416 on the shaft, following the original fixing method and tightening direction.<\/li>\n<li>Reassemble the pump, prime the prefilter with water and check that the impeller turns freely by hand before start up.<\/li>\n<\/ul>\n<p>\nAfter restarting filtration, monitor noise level, pressure and any vibrations during the first minutes to confirm that the assembly is<br \/>\ncorrect and that the pump runs smoothly.\n<\/p>\n<h3>Good practice for long impeller life<\/h3>\n<p>\nWith the Astralpool impeller 1 HP 50 Hz 4405010416 correctly installed, a few simple maintenance habits help extend its service life and<br \/>\nkeep the filtration system efficient.\n<\/p>\n<ul>\n<li>Clean the prefilter basket regularly so large debris cannot reach the impeller.<\/li>\n<li>Avoid running the pump dry or with closed valves, which increases cavitation risk.<\/li>\n<li>Maintain balanced water chemistry to reduce long term stress on plastic parts.<\/li>\n<li>Investigate any unusual noise, vibration or pressure changes early to prevent further damage.<\/li>\n<\/ul>\n<p>\nBy using the original Astralpool impeller 1 HP 50 Hz 4405010416 on compatible pumps and respecting these operating guidelines, residential<br \/>\npools benefit from stable circulation, effective filtration and more comfortable daily use.<\/p>","protected":false},"excerpt":{"rendered":"<p>Astralpool impeller 1 HP 50 Hz 4405010416 The Astralpool impeller 1 HP 50 Hz 4405010416 is the original replacement rotor for selected Astralpool pool pumps equipped with a 1 horsepower, 50 hertz motor. This hydraulic component generates the flow and pressure needed for daily filtration, and replacing a worn or damaged impeller is essential to<a href=\"https:\/\/www.poolparthub.com\/nl\/product\/astralpool-impeller-1-hp-50-hz-4405010416\/\">Continue reading <span class=\"sr-only\">&#8220;Astralpool impeller 1 HP 50 Hz &#8211; 4405010416&#8221;<\/span><\/a><\/p>","protected":false},"featured_media":8838,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"bwfblock_default_font":"","inline_featured_image":false},"product_brand":[920],"product_cat":[1721],"product_tag":[],"class_list":["post-8836","product","type-product","status-publish","has-post-thumbnail","product_brand-astralpool","product_cat-spare-parts","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":{"pph_product_template":"spare_part","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":"Original 1 HP 50 Hz impeller matched to compatible Astralpool pumps "},{"text_details_type":"yes","text_details_product":"Restores the pump\u2019s designed flow and pressure after wear or damage "},{"text_details_type":"yes","text_details_product":"Durable plastic construction suitable for balanced pool water \t"},{"text_details_type":"yes","text_details_product":"Ideal to replace together with the mechanical seal during a major service"},{"text_details_type":"no","text_details_product":"Only suitable for pump models that specify reference 4405010416 "},{"text_details_type":"no","text_details_product":"Replacement requires partial disassembly of the pump wet end and careful shaft handling"}],"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) - 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