{"product_id":"elta-biflow-sb-bifurcated-axial-extract-fan","title":"Elta Biflow SB Bifurcated 250mm - 630mm Axial Extract Fan AC","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eAvailable Sizes: \u003c\/strong\u003e250mm to 630mm\u003cbr\u003e\u003cstrong\u003eMaximum Airflow:\u003c\/strong\u003e Up to 4.501m³\/s\u003cbr\u003e\u003cstrong\u003eMaximum Static Pressure:\u003c\/strong\u003e Up to 608 Pa\u003cbr\u003e\u003cstrong\u003eMaximum Operating Temperature: \u003c\/strong\u003eUp to +200°C\u003cbr\u003e\u003cstrong\u003eMotor Type: \u003c\/strong\u003eAC\u003cbr\u003e\u003cstrong\u003eMotor Protection:\u003c\/strong\u003e IP55\u003cbr\u003e\u003cstrong\u003eMotor Insulation:\u003c\/strong\u003e Class H\u003cbr\u003e\u003cstrong\u003eInstallation: \u003c\/strong\u003eSuitable for External Mounting\u003cbr\u003e\u003cstrong\u003eWarranty: \u003c\/strong\u003e12 Months\u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eElta Biflow SB Bifurcated Axial Fan\u003c\/strong\u003e is a heavy-duty, high-temperature extraction fan specifically engineered for demanding ventilation systems where \u003cstrong\u003ehot or contaminated air needs to be moved safely and efficiently\u003c\/strong\u003e. Its key advantage is the bifurcated design, which positions the motor \u003cstrong\u003eoutside the main airflow\u003c\/strong\u003e, protecting it from elevated temperatures and contaminants passing through the fan. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAvailable in \u003cstrong\u003e5 standard sizes from 250mm to 630mm\u003c\/strong\u003e, the Biflow SB range delivers airflow rates of up to \u003cstrong\u003e4.501m³\/s\u003c\/strong\u003e and static pressures of up to \u003cstrong\u003e608 Pa\u003c\/strong\u003e. With configurations suitable for continuous operating temperatures of up to \u003cstrong\u003e+200°C\u003c\/strong\u003e, it is particularly well suited to challenging commercial and industrial extraction applications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHigh-Temperature Bifurcated Design\u003c\/h3\u003e\n\u003cp\u003eUnlike a conventional axial fan where the motor sits directly within the airflow, the Biflow SB houses its motor inside a \u003cstrong\u003eseparate tunnel running through the fan casing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis isolates the motor from the hot and contaminated extracted air, allowing the fan to handle temperatures of up to \u003cstrong\u003e200°C\u003c\/strong\u003e while also helping protect the motor and extend its operational life. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis makes the SB particularly attractive for demanding extraction installations where \u003cstrong\u003etemperature, airborne contaminants or both\u003c\/strong\u003e would make a conventional axial fan unsuitable.\u003c\/p\u003e\n\u003ch3\u003eHigh-Efficiency Axial Performance\u003c\/h3\u003e\n\u003cp\u003eThe Biflow SB uses \u003cstrong\u003eadjustable-pitch aerofoil impellers\u003c\/strong\u003e fitted with high-quality pressure die-cast aluminium blades. Each impeller is factory set to provide optimum performance and statically balanced to \u003cstrong\u003eISO 14694\u003c\/strong\u003e for smooth and dependable operation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith airflow capability reaching \u003cstrong\u003e4.501m³\/s\u003c\/strong\u003e and static pressure performance of up to \u003cstrong\u003e608 Pa\u003c\/strong\u003e, the range provides substantial extraction capacity while retaining the relatively direct airflow characteristics of an axial fan. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeavy-Duty Construction\u003c\/h3\u003e\n\u003cp\u003eThe fan features a robust \u003cstrong\u003eall-metal heavy-gauge mild steel casing\u003c\/strong\u003e, which is roll formed and welded before being \u003cstrong\u003ehot-dip galvanised to BS EN ISO 1461\u003c\/strong\u003e after fabrication.\u003c\/p\u003e\n\u003cp\u003eThis provides excellent corrosion resistance and makes the Biflow SB suitable for demanding long-term commercial and industrial installations. The fan is also \u003cstrong\u003esuitable for external mounting as standard\u003c\/strong\u003e, providing greater flexibility when designing the extraction system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeavy-Duty AC Motor\u003c\/h3\u003e\n\u003cp\u003eThe SB range uses \u003cstrong\u003etotally enclosed AC motors\u003c\/strong\u003e with \u003cstrong\u003eIP55 protection\u003c\/strong\u003e, sealed-for-life bearings and \u003cstrong\u003eClass H insulation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eLocating the motor outside the primary airflow helps protect it from both excessive heat and contaminants, contributing to improved reliability and service life in hostile extraction environments. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty \u003cstrong\u003ebifurcated axial extract fan\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAvailable in \u003cstrong\u003econical or cylindrical configurations\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5 standard sizes from 250mm to 630mm\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eMaximum airflow of up to \u003cstrong\u003e4.501m³\/s\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStatic pressure of up to \u003cstrong\u003e608 Pa\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures up to \u003cstrong\u003e+200°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMotor positioned \u003cstrong\u003eoutside the main airflow\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIdeal for handling \u003cstrong\u003ehot and contaminated extracted air\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHelps protect the motor from contaminants\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency adjustable-pitch aerofoil impeller\u003c\/li\u003e\n\u003cli\u003ePressure die-cast \u003cstrong\u003ealuminium impeller blades\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge mild steel construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot-dip galvanised\u003c\/strong\u003e after fabrication\u003c\/li\u003e\n\u003cli\u003eExcellent corrosion resistance\u003c\/li\u003e\n\u003cli\u003eSuitable for \u003cstrong\u003eexternal mounting as standard\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTotally enclosed \u003cstrong\u003eAC motor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIP55 motor protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eClass H motor insulation\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSealed-for-life motor bearings\u003c\/li\u003e\n\u003cli\u003eImpeller balanced to \u003cstrong\u003eISO 14694\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAir performance tested to \u003cstrong\u003eISO 5801\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSound performance tested to \u003cstrong\u003eBS ISO 13347-1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eManufactured under \u003cstrong\u003eBS EN ISO 9001\u003c\/strong\u003e procedures\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12-month manufacturer's warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Elta","offers":[{"title":"250 \/ CON – AC Single Phase – 4 Pole","offer_id":58519124377974,"sku":"SB250-CON4-1","price":2329.99,"currency_code":"GBP","in_stock":true},{"title":"250 \/ CON – AC Three Phase – 2 Pole","offer_id":58519124410742,"sku":"SB250-CON2-3","price":2199.99,"currency_code":"GBP","in_stock":true},{"title":"250 \/ CON – AC Three Phase – 4 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Pole","offer_id":58519124803958,"sku":"SB500-CON2-3","price":3389.99,"currency_code":"GBP","in_stock":true},{"title":"500 \/ CYL – AC Three Phase – 4 Pole","offer_id":58519124869494,"sku":"SB500-CYL4-3","price":2799.99,"currency_code":"GBP","in_stock":true},{"title":"630 \/ CYL – AC Three Phase – 4 Pole","offer_id":58519125000566,"sku":"SB630-CYL4-3","price":3249.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/8509\/7078\/files\/biflow_sb_con_01.png?v=1787350844","url":"https:\/\/www.servarikitchens.co.uk\/products\/elta-biflow-sb-bifurcated-axial-extract-fan","provider":"Servari Kitchens Ltd.","version":"1.0","type":"link"}