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Damper

FSD-C series - Galavanised Steel Blades, Installation Plate (IP) & Rotatable Cleats (R-CL)

Product Code: FSD-C-G-IP-R-CL100D
£85.10 excl. VAT
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Description

The BSB FSD-C Series, Circular Single Blade Fire Damper

FSD-C series Circular Single Blade ES rated motorised Fire Damper is designed to stop the spread of fire and smoke through circular ducts which pass through fire rated walls, floors, ceilings and cavity barriers.

ES classified fire damper with reduced smoke leakage characteristics (BS EN 1366-2) Size range available: 100mm to 315mm dia. Can be installed from one side of the fire separation barrier without the need for fire-rated infill material.

Designed to be installed in circular ducted HVAC systems at fire boundaries, the FSD-C Series offers robust performance in fire condition, ensuring integrity of compartmentation is maintained. Suitable for use in areas of sleeping risk and protected escape routes.

The FSD-C Series circular single blade Fire dampers are suitable for use in dryline walls and masonry/concrete walls and floors and cavity barriers and is independently 3rd party tested and certified to the following standards:

  • Fire resistance tested to BS EN 1366-2.
  • ES classified to BS EN13501-3.
  • CE marked to BS EN 15650.
  • Closed blade leakage Class 3 to BS EN 1751.
  • Damper casing leakage Class C to BS EN 1751, normal operating conditions – to a maximum of 1000Pa.
  • The patented single blade layered design is held open via the actuator and will spring closed on input signal from damper control system and/or fire alarm input.
  • The damper design enables testing via the thermal fuse test button without the need for specialist tools or access panels. NB: Access panels may be required to comply with DW145 G.3.1.5.

Price excludes actuator, please search for FSD-C Series Actuator

What is a fire damper and why might they be needed?
The FSD-C Series Single Blade Circular Fire Damper is designed to stop the spread of fire through ducts passing through walls and floors. The product range has many features and options to meet the requirements of specifiers, contractors, local and national authorities. Dampers are available to suit both low/medium and high velocity applications.

What are the ‘E’ and ‘ES’ classifications?
To achieve the classifications to EN13501-3, fire dampers and fire and smoke dampers shall be tested to EN1366-2 and a 300Pa pressure difference is applied across the damper. During the fire test period, the integrity of the seal between the damper and the structure shall not have any gaps larger than 150mm x 6mm. There shall not be any sustained flaming. The largest size of damper to be manufactured for sale as a single section shall be fire tested.

E = Integrity
The maximum leakage permissible at 300Pa corrected to 20°C is 360m3/hr/m2 (100 l/s/m2) throughout the fire test period.

ES = Integrity with Smoke Leakage Performance
The maximum leakage permissible at 300Pa corrected to 20°C is 200m3/hr/m2 (55.5 l/s/m2) at ambient prior to the fire test and throughout the fire test period. In addition, for the ES classification to be attained, the smallest damper must also meet the 200m3/hr/m2 maximum leakage with a 300Pa pressure across the damper. (This is equivalent to just 0.55 l/s on a 100x100 damper).

Fire dampers should be installed as tested. Some applications (fan off) allow the use of tests undertaken to BS 476-20/22 and this is also allowed worldwide in areas outside of the EU. Test reports showing testing to EN 1366-2 should be acceptable to meet the requirements of BS 476-20/22, but the reverse is definitely not the case and no classifications are available. 

However, as a word of caution, in whichever case, the correct model must be selected, to match fire resistance time with installation method and with the supporting construction (wall or floor). To ensure that all testing and assessments are traceable back to initial fire test reports, the BSB FSD-C series is product certified by the Loss Prevention Certification Board (LPCB). This means that in addition to normal BS EN ISO 9001 compliance, the product is also checked to ensure that the same product is being manufactured that has been tested or assessed.

Download Data Sheets

Click the PDF to download each individual data sheet.

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BSB

FSD-C series - Galavanised Steel Blades, Installation Plate (IP) & Rotatable Cleats (R-CL)

From £85.10 excl. VAT

The BSB FSD-C Series, Circular Single Blade Fire Damper

FSD-C series Circular Single Blade ES rated motorised Fire Damper is designed to stop the spread of fire and smoke through circular ducts which pass through fire rated walls, floors, ceilings and cavity barriers.

ES classified fire damper with reduced smoke leakage characteristics (BS EN 1366-2) Size range available: 100mm to 315mm dia. Can be installed from one side of the fire separation barrier without the need for fire-rated infill material.

Designed to be installed in circular ducted HVAC systems at fire boundaries, the FSD-C Series offers robust performance in fire condition, ensuring integrity of compartmentation is maintained. Suitable for use in areas of sleeping risk and protected escape routes.

The FSD-C Series circular single blade Fire dampers are suitable for use in dryline walls and masonry/concrete walls and floors and cavity barriers and is independently 3rd party tested and certified to the following standards:

Price excludes actuator, please search for FSD-C Series Actuator

What is a fire damper and why might they be needed?
The FSD-C Series Single Blade Circular Fire Damper is designed to stop the spread of fire through ducts passing through walls and floors. The product range has many features and options to meet the requirements of specifiers, contractors, local and national authorities. Dampers are available to suit both low/medium and high velocity applications.

What are the ‘E’ and ‘ES’ classifications?
To achieve the classifications to EN13501-3, fire dampers and fire and smoke dampers shall be tested to EN1366-2 and a 300Pa pressure difference is applied across the damper. During the fire test period, the integrity of the seal between the damper and the structure shall not have any gaps larger than 150mm x 6mm. There shall not be any sustained flaming. The largest size of damper to be manufactured for sale as a single section shall be fire tested.

E = Integrity
The maximum leakage permissible at 300Pa corrected to 20°C is 360m3/hr/m2 (100 l/s/m2) throughout the fire test period.

ES = Integrity with Smoke Leakage Performance
The maximum leakage permissible at 300Pa corrected to 20°C is 200m3/hr/m2 (55.5 l/s/m2) at ambient prior to the fire test and throughout the fire test period. In addition, for the ES classification to be attained, the smallest damper must also meet the 200m3/hr/m2 maximum leakage with a 300Pa pressure across the damper. (This is equivalent to just 0.55 l/s on a 100x100 damper).

Fire dampers should be installed as tested. Some applications (fan off) allow the use of tests undertaken to BS 476-20/22 and this is also allowed worldwide in areas outside of the EU. Test reports showing testing to EN 1366-2 should be acceptable to meet the requirements of BS 476-20/22, but the reverse is definitely not the case and no classifications are available. 

However, as a word of caution, in whichever case, the correct model must be selected, to match fire resistance time with installation method and with the supporting construction (wall or floor). To ensure that all testing and assessments are traceable back to initial fire test reports, the BSB FSD-C series is product certified by the Loss Prevention Certification Board (LPCB). This means that in addition to normal BS EN ISO 9001 compliance, the product is also checked to ensure that the same product is being manufactured that has been tested or assessed.

Diameter

  • 100D
  • 125D
  • 150D
  • 160D
  • 200D
  • 250D
  • 300D
  • 315D
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{"id":7727391146044,"title":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL)","handle":"fsd-c-series-galavanised-steel-blades-installation-plate-ip-rotatable-cleats-r-cl","description":"\u003cp\u003eThe BSB FSD-C Series, Circular Single Blade Fire Damper\u003c\/p\u003e\n\u003cp\u003eFSD-C series Circular Single Blade ES rated motorised Fire Damper is designed to stop the spread of fire and smoke through circular ducts which pass through fire rated walls, floors, ceilings and cavity barriers.\u003c\/p\u003e\n\u003cp\u003eES classified fire damper with reduced smoke leakage characteristics (BS EN 1366-2) Size range available: 100mm to 315mm dia. Can be installed from one side of the fire separation barrier without the need for fire-rated infill material.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned to be installed in circular ducted HVAC systems at fire boundaries, the FSD-C Series offers robust performance in fire condition, ensuring integrity of compartmentation is maintained. Suitable for use in areas of sleeping risk and protected escape routes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe FSD-C Series circular single blade Fire dampers are suitable for use in dryline walls and masonry\/concrete walls and floors and cavity barriers and is independently 3rd party tested and certified to the following standards:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFire resistance tested to BS EN 1366-2.\u003c\/li\u003e\n\u003cli\u003eES classified to BS EN13501-3.\u003c\/li\u003e\n\u003cli\u003eCE marked to BS EN 15650.\u003c\/li\u003e\n\u003cli\u003eClosed blade leakage Class 3 to BS EN 1751.\u003c\/li\u003e\n\u003cli\u003eDamper casing leakage Class C to BS EN 1751, normal operating conditions – to a maximum of 1000Pa.\u003c\/li\u003e\n\u003cli\u003eThe patented single blade layered design is held open via the actuator and will spring closed on input signal from damper control system and\/or fire alarm input.\u003c\/li\u003e\n\u003cli\u003eThe damper design enables testing via the thermal fuse test button without the need for specialist tools or access panels. NB: Access panels may be required to comply with DW145 G.3.1.5.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePrice \u003c\/span\u003e\u003cspan\u003eexcludes\u003c\/span\u003e\u003cspan\u003e actuator, please search for \u003c\/span\u003e\u003ca href=\"https:\/\/www.inbuilduk.com\/products\/fsd-c-series-actuator\"\u003e\u003cspan\u003eFSD-C Series Actuator\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat is a fire damper and why might they be needed?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe FSD-C Series Single Blade Circular Fire Damper is designed to stop the spread of fire through ducts passing through walls and floors. The product range has many features and options to meet the requirements of specifiers, contractors, local and national authorities. Dampers are available to suit both low\/medium and high velocity applications.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat are the ‘E’ and ‘ES’ classifications?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eTo achieve the classifications to EN13501-3, fire dampers and fire and smoke dampers shall be tested to EN1366-2 and a 300Pa pressure difference is applied across the damper. During the fire test period, the integrity of the seal between the damper and the structure shall not have any gaps larger than 150mm x 6mm. There shall not be any sustained flaming. The largest size of damper to be manufactured for sale as a single section shall be fire tested.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eE = Integrity\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe maximum leakage permissible at 300Pa corrected to 20°C is 360m3\/hr\/m2 (100 l\/s\/m2) throughout the fire test period.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eES = Integrity with Smoke Leakage Performance\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe maximum leakage permissible at 300Pa corrected to 20°C is 200m3\/hr\/m2 (55.5 l\/s\/m2) at ambient prior to the fire test and throughout the fire test period. In addition, for the ES classification to be attained, the smallest damper must also meet the \u003c\/span\u003e\u003cspan\u003e200m3\/hr\/m2 maximum leakage with a 300Pa pressure across the damper. (This is equivalent to just 0.55 l\/s on a 100x100 damper).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFire dampers should be installed as tested. Some applications (fan off) allow the use of tests undertaken to BS 476-20\/22 and this is also allowed worldwide in areas outside of the EU. Test reports showing testing to EN 1366-2 should be acceptable to meet the requirements of BS 476-20\/22, but the reverse is definitely not the case and no classifications are available. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eHowever, as a word of caution, in whichever case, the correct model must be selected, to match fire resistance time with installation method and with the supporting construction (wall or floor). To ensure that all testing and assessments are traceable back to initial fire test reports, the BSB FSD-C series is product certified by the Loss Prevention Certification Board (LPCB). This means that in addition to normal BS EN ISO 9001 compliance, the product is also checked to ensure that the same product is being manufactured that has been tested or assessed.\u003c\/span\u003e\u003c\/p\u003e","published_at":"2024-07-26T11:47:13+01:00","created_at":"2024-07-26T11:47:13+01:00","vendor":"BSB","type":"Damper","tags":["BSB","Commercial","Dampers","Fire \u0026 Smoke Damper","Fire Compartmentation","Fire Rated","Fire Safety","FSD-C series - Galavanised Steel Blades","FSD-C-G-IP-R-CL100D","FSD-C-G-IP-R-CL125D","FSD-C-G-IP-R-CL150D","FSD-C-G-IP-R-CL160D","FSD-C-G-IP-R-CL200D","FSD-C-G-IP-R-CL250D","FSD-C-G-IP-R-CL300D","FSD-C-G-IP-R-CL315D","Installation Plate (IP) \u0026 Rotatable Cleats (R-CL)","Lead time:7"],"price":8510,"price_min":8510,"price_max":12654,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":42044966436924,"title":"100D","option1":"100D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL100D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 100D","public_title":"100D","options":["100D"],"price":8510,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966469692,"title":"125D","option1":"125D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL125D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 125D","public_title":"125D","options":["125D"],"price":8739,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966502460,"title":"150D","option1":"150D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL150D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 150D","public_title":"150D","options":["150D"],"price":9265,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966535228,"title":"160D","option1":"160D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL160D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 160D","public_title":"160D","options":["160D"],"price":9386,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966567996,"title":"200D","option1":"200D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL200D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 200D","public_title":"200D","options":["200D"],"price":10140,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966600764,"title":"250D","option1":"250D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL250D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 250D","public_title":"250D","options":["250D"],"price":10691,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966633532,"title":"300D","option1":"300D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL300D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 300D","public_title":"300D","options":["300D"],"price":11875,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":42044966666300,"title":"315D","option1":"315D","option2":null,"option3":null,"sku":"FSD-C-G-IP-R-CL315D","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FSD-C series - Galavanised Steel Blades, Installation Plate (IP) \u0026 Rotatable Cleats (R-CL) - 315D","public_title":"315D","options":["315D"],"price":12654,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.inbuilduk.com\/cdn\/shop\/files\/FSD-C_e1c0eb02-a337-47f7-af60-fcbe4d765277.png?v=1722252300","\/\/www.inbuilduk.com\/cdn\/shop\/files\/BSB_Damper_Discount.png?v=1748340509"],"featured_image":"\/\/www.inbuilduk.com\/cdn\/shop\/files\/FSD-C_e1c0eb02-a337-47f7-af60-fcbe4d765277.png?v=1722252300","options":["Diameter"],"media":[{"alt":null,"id":29991056080956,"position":1,"preview_image":{"aspect_ratio":1.222,"height":843,"width":1030,"src":"\/\/www.inbuilduk.com\/cdn\/shop\/files\/FSD-C_e1c0eb02-a337-47f7-af60-fcbe4d765277.png?v=1722252300"},"aspect_ratio":1.222,"height":843,"media_type":"image","src":"\/\/www.inbuilduk.com\/cdn\/shop\/files\/FSD-C_e1c0eb02-a337-47f7-af60-fcbe4d765277.png?v=1722252300","width":1030},{"alt":null,"id":64747696357762,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/www.inbuilduk.com\/cdn\/shop\/files\/BSB_Damper_Discount.png?v=1748340509"},"aspect_ratio":1.0,"height":2048,"media_type":"image","src":"\/\/www.inbuilduk.com\/cdn\/shop\/files\/BSB_Damper_Discount.png?v=1748340509","width":2048}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThe BSB FSD-C Series, Circular Single Blade Fire Damper\u003c\/p\u003e\n\u003cp\u003eFSD-C series Circular Single Blade ES rated motorised Fire Damper is designed to stop the spread of fire and smoke through circular ducts which pass through fire rated walls, floors, ceilings and cavity barriers.\u003c\/p\u003e\n\u003cp\u003eES classified fire damper with reduced smoke leakage characteristics (BS EN 1366-2) Size range available: 100mm to 315mm dia. Can be installed from one side of the fire separation barrier without the need for fire-rated infill material.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned to be installed in circular ducted HVAC systems at fire boundaries, the FSD-C Series offers robust performance in fire condition, ensuring integrity of compartmentation is maintained. Suitable for use in areas of sleeping risk and protected escape routes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe FSD-C Series circular single blade Fire dampers are suitable for use in dryline walls and masonry\/concrete walls and floors and cavity barriers and is independently 3rd party tested and certified to the following standards:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFire resistance tested to BS EN 1366-2.\u003c\/li\u003e\n\u003cli\u003eES classified to BS EN13501-3.\u003c\/li\u003e\n\u003cli\u003eCE marked to BS EN 15650.\u003c\/li\u003e\n\u003cli\u003eClosed blade leakage Class 3 to BS EN 1751.\u003c\/li\u003e\n\u003cli\u003eDamper casing leakage Class C to BS EN 1751, normal operating conditions – to a maximum of 1000Pa.\u003c\/li\u003e\n\u003cli\u003eThe patented single blade layered design is held open via the actuator and will spring closed on input signal from damper control system and\/or fire alarm input.\u003c\/li\u003e\n\u003cli\u003eThe damper design enables testing via the thermal fuse test button without the need for specialist tools or access panels. NB: Access panels may be required to comply with DW145 G.3.1.5.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePrice \u003c\/span\u003e\u003cspan\u003eexcludes\u003c\/span\u003e\u003cspan\u003e actuator, please search for \u003c\/span\u003e\u003ca href=\"https:\/\/www.inbuilduk.com\/products\/fsd-c-series-actuator\"\u003e\u003cspan\u003eFSD-C Series Actuator\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat is a fire damper and why might they be needed?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe FSD-C Series Single Blade Circular Fire Damper is designed to stop the spread of fire through ducts passing through walls and floors. The product range has many features and options to meet the requirements of specifiers, contractors, local and national authorities. Dampers are available to suit both low\/medium and high velocity applications.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat are the ‘E’ and ‘ES’ classifications?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eTo achieve the classifications to EN13501-3, fire dampers and fire and smoke dampers shall be tested to EN1366-2 and a 300Pa pressure difference is applied across the damper. During the fire test period, the integrity of the seal between the damper and the structure shall not have any gaps larger than 150mm x 6mm. There shall not be any sustained flaming. The largest size of damper to be manufactured for sale as a single section shall be fire tested.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eE = Integrity\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe maximum leakage permissible at 300Pa corrected to 20°C is 360m3\/hr\/m2 (100 l\/s\/m2) throughout the fire test period.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eES = Integrity with Smoke Leakage Performance\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe maximum leakage permissible at 300Pa corrected to 20°C is 200m3\/hr\/m2 (55.5 l\/s\/m2) at ambient prior to the fire test and throughout the fire test period. In addition, for the ES classification to be attained, the smallest damper must also meet the \u003c\/span\u003e\u003cspan\u003e200m3\/hr\/m2 maximum leakage with a 300Pa pressure across the damper. (This is equivalent to just 0.55 l\/s on a 100x100 damper).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFire dampers should be installed as tested. Some applications (fan off) allow the use of tests undertaken to BS 476-20\/22 and this is also allowed worldwide in areas outside of the EU. Test reports showing testing to EN 1366-2 should be acceptable to meet the requirements of BS 476-20\/22, but the reverse is definitely not the case and no classifications are available. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eHowever, as a word of caution, in whichever case, the correct model must be selected, to match fire resistance time with installation method and with the supporting construction (wall or floor). To ensure that all testing and assessments are traceable back to initial fire test reports, the BSB FSD-C series is product certified by the Loss Prevention Certification Board (LPCB). This means that in addition to normal BS EN ISO 9001 compliance, the product is also checked to ensure that the same product is being manufactured that has been tested or assessed.\u003c\/span\u003e\u003c\/p\u003e"}