{"product_id":"450mm-inspection-chamber-base-160mm-110mm-inlets","title":"450mm Inspection Chamber Base 160mm\/110mm Inlets","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003e450mm inspection chamber base designed for underground foul and surface water drainage systems. This component provides dependable access for inspection, cleaning, and maintenance while accommodating both 160mm and 110mm drainage pipe connections.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eManufactured from high-strength, durable polypropylene, the base ensures long-term structural integrity and watertight performance under load. Its multiple inlets allow direct connection of mixed-diameter pipework, making it suitable for system layouts where 160mm mains and 110mm branch lines converge.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eCommonly used as a connection point within larger domestic and light commercial installations, the 450mm base enables straightforward transitions between different pipe sizes without additional fittings. It supports flexible system design at junctions, changes in direction, or depth variations.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eDesigned for use with standard 450mm risers and covers, the component forms part of a modular assembly providing safe and efficient access to underground drainage networks. Its robust manufacture and precise jointing design ensure lasting performance in a range of site conditions.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-size connectivity\u003c\/strong\u003e: Accepts both 160mm and 110mm pipe diameters for adaptable installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e: Produced from high-strength polypropylene for long-term underground use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple inlets\u003c\/strong\u003e: Allows versatile layout options for connecting main and branch drainage runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced accessibility\u003c\/strong\u003e: 450mm chamber diameter provides improved access for rodding and inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable performance\u003c\/strong\u003e: Suitable for foul and surface water applications in domestic and light commercial systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy integration\u003c\/strong\u003e: Compatible with standard 450mm risers and covers for a complete chamber assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderground drainage\u003c\/strong\u003e: Provides secure inspection access for foul and surface water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe junctions\u003c\/strong\u003e: Connects multiple 160mm and 110mm pipes within a single chamber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResidential drainage\u003c\/strong\u003e: Suitable for larger domestic systems with mixed pipe diameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight commercial works\u003c\/strong\u003e: Used in small commercial networks requiring enhanced access points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance access\u003c\/strong\u003e: Enables inspection and cleaning of main and branch drainage runs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcavation\u003c\/strong\u003e: Prepare excavation to suit chamber base dimensions and required invert level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBedding\u003c\/strong\u003e: Position on a compacted granular bed to ensure full support and alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe connection\u003c\/strong\u003e: Insert 160mm or 110mm pipes into the correct inlets using compatible seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly\u003c\/strong\u003e: Fit with 450mm risers and a suitable cover and frame for surface access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackfilling\u003c\/strong\u003e: Surround with granular material and compact evenly in layers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling\u003c\/strong\u003e: Lift carefully to prevent damage to inlet sockets or seals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial standard\u003c\/strong\u003e: Manufactured in accordance with industry standards for underground drainage components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoad capacity\u003c\/strong\u003e: Designed to withstand normal ground and installation loadings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe compatibility\u003c\/strong\u003e: Accepts standard EN 1401 110mm and 160mm uPVC drainage pipes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem suitability\u003c\/strong\u003e: Approved for use in foul and surface water drainage networks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation compliance\u003c\/strong\u003e: Meets Building Regulations for underground access chambers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: Ensure correct sealing rings are used when connecting pipes of different diameters to maintain watertight performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":53771510939759,"sku":"7001408","price":73.45,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/6D900_450mm_Inspection_Chamber_Base_160mm110mm_Inlets_-_Photo.jpg?v=1783758540","url":"https:\/\/supplyyard.co.uk\/products\/450mm-inspection-chamber-base-160mm-110mm-inlets","provider":"Supply Yard","version":"1.0","type":"link"}