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{"id":15237425791360,"title":"Flowbrake Complete Vortex Flow Control Chamber 1200mm","handle":"flowbrake-complete-vortex-flow-control-chamber-1200mm","description":"\u003cp\u003eThe 1200mm Flow Control Chamber range features the innovative new FlowBrake\u003csup\u003e®\u003c\/sup\u003e Maxi - Vortex flow control, which is integrated into the outlet manifold of the chamber.\u003c\/p\u003e\n\u003cp\u003eThe outlet manifold is also fitted with a non-return valve and emergency by-pass kit, and  overflow pipe designed to operate in the unlikely event of blockage.\u003c\/p\u003e\n\u003cp\u003eThe Flow Brake Maxi has been meticulously designed so that this single model will offer a vast range of precise flow discharge rates, from as low as 0.7 litres per second and up to 24.7 litres per second, with design heads typically but not limited to 3 meters.\u003c\/p\u003e\n\u003cp\u003eThe tapered inlet and outlet arrangement can be cut to required size, allowing for a vast array of design head - discharge curves to be achieved with this single device\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* This is not supplied with an access cover *\u003c\/strong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* Ladders can also be fitted if required, select yes or no in the dropdown list *\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat information do we need to design your Flow Control chamber?\u003c\/strong\u003e \u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eThe Design Flow - Maximum Discharge \u003cstrong\u003ePlease email this to us\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Design Head - Invert to Top Water Level \u003cstrong\u003ePlease email this to us \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePipework sizes and configurations\u003c\/li\u003e\n\u003cli\u003eInvert Depths \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOptional Accessories\u003c\/strong\u003e\u003c\/span\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.freeflush.co.uk\/collections\/stormwater-attenuation-accessories\/products\/oriflo-flow-control-chamber-300mm-p-series\"\u003eSilt Guard upstream protection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.freeflush.co.uk\/collections\/stormwater-attenuation-accessories\/products\/oriflo-flow-control-chamber-300mm-p-series\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSuDS attenuation sizing design\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eGuidance Documents \u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe FlowBrake maxi meets the criteria of the following SuDS design documents\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBS 8582 9.6\u003c\/li\u003e\n\u003cli\u003eCIRIA 753 10.2, 20.5 \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe FlowBrake Maxi has a minimum opening of 40mm which is considered suitable where upstream blockage prevention is in place\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePlease get in touch to request the QH curves for your design point\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003c!-- split --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi1mDWG_1.pdf?v=1770649690\"\u003e1m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi1.5mDWG_1.pdf?v=1770649850\"\u003e1.5m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi2mDWG.pdf?v=1770649761\"\u003e2m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi2.5mDWG.pdf?v=1770649726\"\u003e2.5m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi3mDWG.pdf?v=1770649795\"\u003e3m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- split --\u003e\u003c\/p\u003e","published_at":"2026-02-09T15:24:57+00:00","created_at":"2025-07-14T14:19:46+01:00","vendor":"Freeflush","type":"stormwater management","tags":[],"price":185900,"price_min":185900,"price_max":423900,"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":56236873580928,"title":"1000 \/ PVC 110mm \/ Yes","option1":"1000","option2":"PVC 110mm","option3":"Yes","sku":"FB1200-1000 PVC110 \/ Ladder","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Flowbrake Complete Vortex Flow Control Chamber 1200mm - 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3000 \/ PVC 110mm \/ Yes","public_title":"3000 \/ PVC 110mm \/ Yes","options":["3000","PVC 110mm","Yes"],"price":413900,"weight":46000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":56236920406400,"title":"3000 \/ PVC 110mm \/ No","option1":"3000","option2":"PVC 110mm","option3":"No","sku":"FB1200-3000 PVC110 \/ No Ladder","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Flowbrake Complete Vortex Flow Control Chamber 1200mm - 3000 \/ PVC 110mm \/ No","public_title":"3000 \/ PVC 110mm \/ No","options":["3000","PVC 110mm","No"],"price":305900,"weight":46000,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":56236920439168,"title":"3000 \/ PVC 160mm \/ Yes","option1":"3000","option2":"PVC 160mm","option3":"Yes","sku":"FB1200-3000 PVC160 \/ Ladder","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Flowbrake Complete Vortex Flow Control Chamber 1200mm - 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Freeflush Water Management Ltd. ","id":67773231890816,"position":1,"preview_image":{"aspect_ratio":0.73,"height":1184,"width":864,"src":"\/\/www.freeflush.co.uk\/cdn\/shop\/files\/Gemini_Generated_Image_jnjavtjnjavtjnja.png?v=1770648112"},"aspect_ratio":0.73,"height":1184,"media_type":"image","src":"\/\/www.freeflush.co.uk\/cdn\/shop\/files\/Gemini_Generated_Image_jnjavtjnjavtjnja.png?v=1770648112","width":864},{"alt":"Flowbrake Complete Vortex Flow Control Chamber 600mm - Freeflush Water Management Ltd. ","id":67773231858048,"position":2,"preview_image":{"aspect_ratio":1.37,"height":864,"width":1184,"src":"\/\/www.freeflush.co.uk\/cdn\/shop\/files\/Gemini_Generated_Image_nh0cvunh0cvunh0c.png?v=1770648112"},"aspect_ratio":1.37,"height":864,"media_type":"image","src":"\/\/www.freeflush.co.uk\/cdn\/shop\/files\/Gemini_Generated_Image_nh0cvunh0cvunh0c.png?v=1770648112","width":1184},{"alt":"Flowbrake Complete Vortex Flow Control Chamber 1200mm - Freeflush Water Management Ltd. ","id":67087472361856,"position":3,"preview_image":{"aspect_ratio":1.547,"height":716,"width":1108,"src":"\/\/www.freeflush.co.uk\/cdn\/shop\/files\/Screenshot_2025-12-12_144150.jpg?v=1770648112"},"aspect_ratio":1.547,"height":716,"media_type":"image","src":"\/\/www.freeflush.co.uk\/cdn\/shop\/files\/Screenshot_2025-12-12_144150.jpg?v=1770648112","width":1108}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThe 1200mm Flow Control Chamber range features the innovative new FlowBrake\u003csup\u003e®\u003c\/sup\u003e Maxi - Vortex flow control, which is integrated into the outlet manifold of the chamber.\u003c\/p\u003e\n\u003cp\u003eThe outlet manifold is also fitted with a non-return valve and emergency by-pass kit, and  overflow pipe designed to operate in the unlikely event of blockage.\u003c\/p\u003e\n\u003cp\u003eThe Flow Brake Maxi has been meticulously designed so that this single model will offer a vast range of precise flow discharge rates, from as low as 0.7 litres per second and up to 24.7 litres per second, with design heads typically but not limited to 3 meters.\u003c\/p\u003e\n\u003cp\u003eThe tapered inlet and outlet arrangement can be cut to required size, allowing for a vast array of design head - discharge curves to be achieved with this single device\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* This is not supplied with an access cover *\u003c\/strong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* Ladders can also be fitted if required, select yes or no in the dropdown list *\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat information do we need to design your Flow Control chamber?\u003c\/strong\u003e \u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eThe Design Flow - Maximum Discharge \u003cstrong\u003ePlease email this to us\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe Design Head - Invert to Top Water Level \u003cstrong\u003ePlease email this to us \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePipework sizes and configurations\u003c\/li\u003e\n\u003cli\u003eInvert Depths \u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOptional Accessories\u003c\/strong\u003e\u003c\/span\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.freeflush.co.uk\/collections\/stormwater-attenuation-accessories\/products\/oriflo-flow-control-chamber-300mm-p-series\"\u003eSilt Guard upstream protection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.freeflush.co.uk\/collections\/stormwater-attenuation-accessories\/products\/oriflo-flow-control-chamber-300mm-p-series\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSuDS attenuation sizing design\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eGuidance Documents \u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe FlowBrake maxi meets the criteria of the following SuDS design documents\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBS 8582 9.6\u003c\/li\u003e\n\u003cli\u003eCIRIA 753 10.2, 20.5 \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe FlowBrake Maxi has a minimum opening of 40mm which is considered suitable where upstream blockage prevention is in place\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePlease get in touch to request the QH curves for your design point\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003c!-- split --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi1mDWG_1.pdf?v=1770649690\"\u003e1m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi1.5mDWG_1.pdf?v=1770649850\"\u003e1.5m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi2mDWG.pdf?v=1770649761\"\u003e2m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi2.5mDWG.pdf?v=1770649726\"\u003e2.5m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0829\/4323\/files\/maxi3mDWG.pdf?v=1770649795\"\u003e3m Depth Spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- split --\u003e\u003c\/p\u003e"}

Flowbrake Complete Vortex Flow Control Chamber 1200mm

£2,219.00
Maximum quantity available reached.

The 1200mm Flow Control Chamber range features the innovative new FlowBrake® Maxi - Vortex flow control, which is integrated into the outlet manifold of the chamber.

The outlet manifold is also fitted with a non-return valve and emergency by-pass kit, and  overflow pipe designed to operate in the unlikely event of blockage.

The Flow Brake Maxi has been meticulously designed so that this single model will offer a vast range of precise flow discharge rates, from as low as 0.7 litres per second and up to 24.7 litres per second, with design heads typically but not limited to 3 meters.

The tapered inlet and outlet arrangement can be cut to required size, allowing for a vast array of design head - discharge curves to be achieved with this single device

* This is not supplied with an access cover *

* Ladders can also be fitted if required, select yes or no in the dropdown list *

What information do we need to design your Flow Control chamber? 

  1. The Design Flow - Maximum Discharge Please email this to us
  2. The Design Head - Invert to Top Water Level Please email this to us 
  3. Pipework sizes and configurations
  4. Invert Depths 

Optional Accessories

Guidance Documents 

The FlowBrake maxi meets the criteria of the following SuDS design documents

  • BS 8582 9.6
  • CIRIA 753 10.2, 20.5 

The FlowBrake Maxi has a minimum opening of 40mm which is considered suitable where upstream blockage prevention is in place

Please get in touch to request the QH curves for your design point

 

If your query is related to an existing order please email in with your order number in the subject line. If you have a new residential enquiry please consult the online guides before calling as they may answer your question.

The delivery information page is divided into 1. Specific and 2. General delivery information below. 

1. Specific Delivery Information relating to product lines
  • Small items dispatched daily with RM24 ~85% arriving next day
  • Large items (UK made) typically 5 - 15 working days (Parcelforce/APC etc) 
The following items have a 2-4 week lead time:
    • 1,000 litre compact underground rainwater tank
    • SAR40-TOP2 Wastewater Lifting station
    • 2000 Litre Stone Effect Column Water Butt - Sand beige

     The following items are purchased on a pre order basis with a potential 4-6 weeks lead time:

    • 500 litre Prestige Georgian rain water butt planter - Black Granite & Grey
    • 100l Manhattan - Black Granite 
    The following items are purchased on a pre order basis with a potential 4-8 weeks lead time:
    • Green Roof sedum tray - pre planted option
    • Agua 190 litre Rain Barrel with Planter
    • Madison 185 Litre rain barrel with water feature
    • Castilla 190 Litre Rain Barrel
    • Cascata 245 Litre Rain Barrel
    The following items (EU) are purchased on a pre order basis with a potential 10-12 week lead time:
    • Hydraloop
      2. General Delivery information

       


      We're a Manchester based company and ship to the UK at our standard rates. Please get in touch requesting the delivery surcharge value  if you are based in the Highlands or a UK island

      We no longer support ordering from the EU and Northern Ireland through the website. We can support ad hoc orders with limited liability.

      Our design and Prestige range is available in the Netherlands, Ireland, Belgium, France, Germany, through our distributors.

      Stock items will be dispatched on the day of order, if ordered before 1pm.

      Letters are sent 1st class. 

      Parcels <2kg are shipped with Royal Mail 24 with the following target delivery times.

      Guaranteed delivery can be arranged by advance agreement. This agreement is back to back with the courier and we will not be liable for any delays as per our terms.

      A loss/replacement can only be pursued in line with the target delivery times of the courier or once the courier accept loss. 

      Bulky items (and pallet deliveries) are dispatched within 2-15 working days. We will request a contact number if this has not been provided at checkout. 

      Some items are made to order (bespoke) and details are given on the listing for dispatch times.  If for any reason we anticipate a delay on our normal dispatch time we will contact you to let you know.

      Occasionally there are delays. We shall not be liable for any direct or indirect losses, costs, damages or expenses incurred by you or any other person for any delays in delivery.

      Missed deliveries where attempted delivery has been made usually result in re-deliveries the following day. The customer is responsible for organising re deliveries by contacting the courier direct

      Parcels/deliveries can only be "left out" if the delivering company allows that option. Parcelforce, for example, do not allow a parcel to be "left out". 

      We are an environment centric business and as such we try to minimise our waste. Our packaging is usually recycled and/or recyclable and we make efficient use of packaging to minimise wastage.

      Covid delivery updates between 12.3.20 and 11.1.21 21 have been archived here.

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