{"title":"BSB","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eBSB are one of the UK's most trusted fire damper manufacturers, with over 60 years of experience supplying fire dampers to commercial, residential, and public sector projects across the UK and Europe. At eFans, we stock the \u003c\/span\u003e\u003cstrong\u003eBSB FD-C Series\u003c\/strong\u003e\u003cspan\u003e — a circular single blade, externally resettable combination fire and volume control damper — available with next day delivery and full technical support.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe BSB FD-C is the standard specification circular fire damper for UK installations. Key features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBS EN 15650 compliant\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— meets all UK and European fire damper performance standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eE120 fire classification\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— tested to prevent fire spread for up to two hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternally resettable\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— can be reset without removing the damper from the duct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanised and stainless steel options\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for standard and corrosive environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional microswitch\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for remote indication of open\/closed status\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested installation variants\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— certified for dry walls, masonry walls, and concrete floors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor fire-rated installations requiring the highest level of certification and test data, BSB FD-C dampers are the benchmark choice for specifiers, consultants, and installers. Need advice on sizing or specification? Contact us at\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:hello@efans.co.uk\"\u003ehello@efans.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat is the BSB FD-C Series?\u003c\/h3\u003e\n\u003cp\u003eThe BSB FD-C is a circular single blade fire damper designed for installation in round ductwork where it penetrates fire-resisting walls, floors, or partitions. It's externally resettable — meaning the blade can be returned to the open position without accessing the inside of the duct — and is available in both galvanised steel (standard) and stainless steel (for humid or corrosive environments).\u003c\/p\u003e\n\u003ch3\u003eWhat does E120 fire classification mean?\u003c\/h3\u003e\n\u003cp\u003eE120 is the highest fire resistance classification for fire dampers under EN 1366-2. It means the damper has been tested and proven to maintain fire compartmentation — preventing fire and hot gases from passing through — for a minimum of 120 minutes. All BSB FD-C tested installation methods achieve E120, making them suitable for 60-minute and 120-minute fire-rated compartments.\u003c\/p\u003e\n\u003ch3\u003eAre BSB fire dampers compliant with UK Building Regulations?\u003c\/h3\u003e\n\u003cp\u003eYes. BSB fire dampers comply with BS EN 15650 and are tested to EN 1366-2, meeting the requirements of UK Building Regulations Approved Document B for passive fire protection in ventilation systems. Their test certificates and installation data are available to support specification and building control sign-off.\u003c\/p\u003e\n\u003ch3\u003eWhat is the microswitch option on BSB dampers?\u003c\/h3\u003e\n\u003cp\u003eThe optional microswitch provides remote electrical indication of the damper's position — open or closed. This is used in buildings where fire damper status needs to be monitored centrally, such as via a building management system (BMS) or fire alarm panel. It's particularly useful in larger commercial buildings where physical inspection of every damper is impractical.\u003c\/p\u003e\n\u003ch3\u003eHow do BSB fire dampers differ from intumescent fire blocks?\u003c\/h3\u003e\n\u003cp\u003eBSB fire dampers are mechanical devices with a spring-loaded blade that closes when a thermal fuse melts at approximately 72°C. Intumescent fire blocks are passive products that expand in response to heat, sealing the duct opening without moving parts. Mechanical dampers like the BSB FD-C are required where ductwork must remain open during normal operation and close only in a fire — the standard requirement in most commercial ventilation systems. Browse our full\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.claudeusercontent.com\/collections\/fire-dampers\"\u003efire dampers range\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor both options.\u003c\/p\u003e","products":[{"product_id":"bsb-fd-c-series-circular-single-blade-externally-resettable-combination-fire-and-volume-control-damper","title":"BSB FD-C Series Circular Single Blade Externally Resettable Combination Fire and Volume Control Damper","description":"\u003cp\u003eThe BSB FD-C Series is a manually operated single-blade circular fire damper with an integrated volume control facility, designed for installations where space is at a premium. The damper, thermal fuse and reset are all accessed from outside the duct, making commissioning and maintenance straightforward.\u003c\/p\u003e\u003cp\u003eIt is an ES-classified fire damper with reduced smoke leakage (BS EN 1366-2), air-control tested to BS EN 1751, with a casing conforming to BS EN 1506, a replaceable fusible link, and an external blade position indicator. The standard case length is 320mm and it is available in 8 sizes from 100mm to 315mm diameter.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e100mm to 315mm diameter\u003c\/li\u003e\n\u003cli\u003eFire + volume control damper\u003c\/li\u003e\n\u003cli\u003eExternally resettable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSuitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVertical and horizontal ducted ventilation systems\u003c\/li\u003e\n\u003cli\u003eAirflow control and fire protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFD-C Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCombination fire and volume control damper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamper shape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCircular single blade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClassification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eES (BS EN 1366-2), reduced smoke leakage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBS EN 1751 (air control), BS EN 1506 (casing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e320mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100mm to 315mm diameter (8 sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReset\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternally resettable, replaceable fusible link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eManuals \u0026amp; Guides\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/BSB_FD-C_Fire_Damper_Datasheet.pdf?v=1620436499\" title=\"Data Sheet\" target=\"_blank\"\u003eBSB FD-C Series Circular Single Blade Data Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"BSB","offers":[{"title":"100mm dia","offer_id":34641218175132,"sku":"EF100-FD","price":101.99,"currency_code":"GBP","in_stock":true},{"title":"125mm dia","offer_id":34641236066460,"sku":"EF125-FD","price":113.99,"currency_code":"GBP","in_stock":true},{"title":"150mm dia","offer_id":34641329553564,"sku":"EF150-FD","price":106.99,"currency_code":"GBP","in_stock":true},{"title":"160mm dia","offer_id":34641383653532,"sku":"EF160-FD","price":111.99,"currency_code":"GBP","in_stock":true},{"title":"200mm dia","offer_id":34641394237596,"sku":"EF200-FD","price":120.99,"currency_code":"GBP","in_stock":true},{"title":"250mm dia","offer_id":34641397055644,"sku":"EF250-FD","price":133.99,"currency_code":"GBP","in_stock":true},{"title":"300mm dia","offer_id":34641400823964,"sku":"EF300-FD","price":145.99,"currency_code":"GBP","in_stock":true},{"title":"315mm dia","offer_id":34641418158236,"sku":"EF315-FD","price":153.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/3932\/0965\/files\/bsb-fire-damper.jpg?v=1733757345"}],"url":"https:\/\/www.efans.co.uk\/collections\/bsb.oembed","provider":"eFans Direct Ltd","version":"1.0","type":"link"}