{"product_id":"baxi-boiler-hydraulic-inlet-valve-12l-automatic-air-vent-aav-5132454-5132455-248043","title":"Baxi Boiler Hydraulic Inlet Valve (12L) + Automatic Air Vent AAV 5132454 5132455 248043","description":"\u003ch1\u003e\u003cspan\u003eBaxi Boiler Hydraulic Inlet Valve (12L) + Automatic Air Vent AAV 5132454 5132455 248043\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBaxi Hydraulic Inlet Valve (12L) with Automatic Air Vent (AAV) Kit (5132454, 5132455 \u0026amp; 248043)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a hydraulic replacement kit designed for use within selected Baxi heating systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe hydraulic inlet assembly controls and manages the water supply entering the boiler system, helping maintain correct hydraulic operation. The automatic air vent (AAV) helps remove trapped air from the heating system, supporting efficient circulation and reducing the risk of air-related issues within the appliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTogether, these components help maintain correct water flow, system filling, and reliable boiler operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eℹ️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eProduct Condition Options:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis part may be available in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNew or Refurbished\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e condition. Please check the available options from the dropdown menu.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Insight \u0026amp; Common Failure Symptoms\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe hydraulic inlet assembly is part of the boiler's water management system and works with other hydraulic components to control water supply and circulation. The automatic air vent assists by releasing trapped air that can affect system performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOver time, hydraulic components may experience wear, scaling, leaks, or internal deterioration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTypical symptoms linked to a faulty hydraulic inlet valve or automatic air vent include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWater leaks from the hydraulic assembly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDifficulty maintaining correct boiler pressure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced heating or hot water performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir trapped within the heating system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNoisy boiler operation caused by air in the system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePoor circulation or inconsistent boiler performance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eReplacing worn hydraulic components may help restore correct water flow, pressure management, and reliable boiler operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompatibility\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eManufacturer Part Numbers (MPN):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e5132454\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Hydraulic Inlet Assembly 12L\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e5132455\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Hydraulic Component Reference\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e248043\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Automatic Air Vent (AAV)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis part is designed for selected models within the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBaxi range\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePlease strictly verify the manufacturer part numbers \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5132454, 5132455 and 248043\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e against your boiler's technical manual, exploded parts diagram, or existing components before ordering to guarantee correct fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSafety Advice\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003eBoiler hydraulic components involve water pressure, heating system connections, and internal boiler parts. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions\u003c\/em\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"National Boiler Spares","offers":[{"title":"Default Title","offer_id":44364724043879,"sku":"N9189","price":52.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/0923\/8887\/files\/N9189.webp?v=1786012259","url":"https:\/\/nationalboilerspares.co.uk\/products\/baxi-boiler-hydraulic-inlet-valve-12l-automatic-air-vent-aav-5132454-5132455-248043","provider":"National Boiler Spares","version":"1.0","type":"link"}