{"product_id":"flanged-damper","title":"Elta Flanged Damper","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eFlanged Damper\u003c\/h2\u003e\n\u003cp\u003eThis flanged damper is designed to prevent reverse airflow when the fan is not operating. It fixes directly to the fan case flange, helping reduce unwanted backdraught through the duct run and supporting more stable system behaviour. The butterfly blade design opens with airflow then closes when the fan stops.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelect models are available for next day delivery.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy fit a flanged damper\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents reverse flow\u003c\/strong\u003e when the fan is not operating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect flange fixing\u003c\/strong\u003e for a secure mechanical connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable galvanised construction\u003c\/strong\u003e suited to typical plant and duct environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible mounting\u003c\/strong\u003e suitable for horizontal mounting plus vertical mounting where airflow direction is upwards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuild and operation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e hot dip galvanised steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlades:\u003c\/strong\u003e galvanised steel butterfly type blades\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixing:\u003c\/strong\u003e mounts directly to the fan case flange\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes and product codes\u003c\/h3\u003e\n\u003cp\u003eThe range covers fan diameters from \u003cstrong\u003e250mm to 1000mm\u003c\/strong\u003e. Choose the product code that matches the fan diameter, then confirm overall dimensions and bolt pattern requirements using the data sheet.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct code\u003c\/th\u003e\n\u003cth\u003eFan dia (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (kg)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0250-STD\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e7.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0315-STD\u003c\/td\u003e\n\u003ctd\u003e315\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0355-STD\u003c\/td\u003e\n\u003ctd\u003e350\u003c\/td\u003e\n\u003ctd\u003e8.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0400-STD\u003c\/td\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e9.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0450-STD\u003c\/td\u003e\n\u003ctd\u003e450\u003c\/td\u003e\n\u003ctd\u003e12.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0500-STD\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003ctd\u003e18.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0560-STD\u003c\/td\u003e\n\u003ctd\u003e560\u003c\/td\u003e\n\u003ctd\u003e21.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0630-STD\u003c\/td\u003e\n\u003ctd\u003e630\u003c\/td\u003e\n\u003ctd\u003e25.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0710-STD\u003c\/td\u003e\n\u003ctd\u003e710\u003c\/td\u003e\n\u003ctd\u003e29.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0800-STD\u003c\/td\u003e\n\u003ctd\u003e800\u003c\/td\u003e\n\u003ctd\u003e34.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-0900-STD\u003c\/td\u003e\n\u003ctd\u003e900\u003c\/td\u003e\n\u003ctd\u003e59.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e019-1000-STD\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e85.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSelection tip\u003c\/h3\u003e\n\u003cp\u003eIf you are ordering alongside a fan, match the damper diameter to the fan connection size. If you are replacing an existing unit, match the product code first then verify the diameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-description\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/download-datasheets-banner.png?v=1760521797\"\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.4379%;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/Flanged-Damper.pdf?v=1770630324\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/pdf-download-icon.png?v=1760521798\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4151\/5237\/files\/Acoustic_Mat_1.pdf?v=1709633062\" title=\"ODE Starflex Loft Roll (100mm \u0026amp; 200mm)\"\u003e\u003c\/a\u003e\u003ca title=\"Lunaflex Ductwrap Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4151\/5237\/files\/epd-certificate-glasswool-44_1.pdf?v=1709632546\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4151\/5237\/files\/ODE_Duct-wrap_Datasheet.pdf?v=1709630634\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 78.1023%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong data-end=\"3258\" data-start=\"3207\"\u003eProduct Data, Performance \u0026amp; Dimension Sheet\u003c\/strong\u003e\u003cbr data-end=\"3261\" data-start=\"3258\"\u003eProduct codes, fan diameter options, full dimensional table plus bolt hole pattern details for selecting the correct flanged damper. Click here to download the flanged damper data sheet.\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/Flanged-Damper.pdf?v=1770630324\"\u003e \u003cstrong\u003eClick here to download the full data, performance and dimension sheet.\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eLooking to specify or purchase?\u003c\/strong\u003e \u003ca href=\"https:\/\/buyventilation.co.uk\/collections\/heat-recovery-units\"\u003e\u003cstrong\u003eExplore our full range of heat recovery ventilation units\u003c\/strong\u003e\u003c\/a\u003e or contact Buy Ventilation for expert guidance on selecting the right system for your project.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- Sources: :contentReference[oaicite:0]{index=0} --\u003e\u003c\/p\u003e","brand":"BuyVentilation","offers":[{"title":"250mm","offer_id":56319853068674,"sku":null,"price":595.85,"currency_code":"GBP","in_stock":true},{"title":"315mm","offer_id":56462187528578,"sku":null,"price":638.35,"currency_code":"GBP","in_stock":false},{"title":"355mm","offer_id":56462187561346,"sku":null,"price":722.5,"currency_code":"GBP","in_stock":false},{"title":"400mm","offer_id":56462187594114,"sku":null,"price":748.85,"currency_code":"GBP","in_stock":false},{"title":"450mm","offer_id":56462187626882,"sku":null,"price":745.45,"currency_code":"GBP","in_stock":false},{"title":"500mm","offer_id":56462187659650,"sku":null,"price":756.5,"currency_code":"GBP","in_stock":false},{"title":"560mm","offer_id":56462187692418,"sku":null,"price":776.05,"currency_code":"GBP","in_stock":false},{"title":"630mm","offer_id":56462187725186,"sku":null,"price":815.15,"currency_code":"GBP","in_stock":false},{"title":"710mm","offer_id":56462187757954,"sku":null,"price":901.0,"currency_code":"GBP","in_stock":false},{"title":"800mm","offer_id":56462187790722,"sku":null,"price":1032.75,"currency_code":"GBP","in_stock":false},{"title":"900mm","offer_id":56462187823490,"sku":null,"price":1181.5,"currency_code":"GBP","in_stock":false},{"title":"1000mm","offer_id":56462187856258,"sku":null,"price":1507.9,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/flanged_damper_01.png?v=1770384960","url":"https:\/\/buyventilation.co.uk\/products\/flanged-damper","provider":"Buy Ventilation","version":"1.0","type":"link"}