How Does Beaver® Work?

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Mobile Flood Barrier (tubes) by Beaver®

How Does Beaver® Work?

Setup and Deployment

Here’s a step-by-step guide on how to set-up and deploy BEAVER mobile flood barrier tubes during emergencies! These assembly instructions are for types M50 and MXL80/H100.

Unrolling Beaver® mobile flood barrier tubes

Step 1: Layout or roll out the dam elements (tubes)

Place the dam elements in the target location. Loosen the straps. Roll out the dam elements.

Beaver® deployment

Step 2: Inflate

Inflate the dam elements with a special pump. Please ensure you maintain a maximum low pressure of 0.1 bar.

Beaver deployment step 3

Step 3: Connect the Elements

Connect the dam elements with the straps after letting out some of the air. Attach the straps in such a way that they sag slightly. Move the dam into the required position. Do not drag it over the ground!

Hoses connected to Beaver® flood barrier tubes

Step 4: Fill with Water

Connect a fire brigade hose and fill it with water whilst letting air out at the same time. Fill both hoses at the same time.

Filling Beaver® mobile flood barrier tubes with water

Step 5: During Filling

Make sure that the hoses do not roll away. On an inclined surface, the elements lying side by side should be filled with water at the same time.

Closing the cap of Beaver® tubes after filling water

Step 6: Deflate

Let the air out from the openings at the top. The dam element should adopt an oval shape in the process.

Closing the caps of Beaver® mobile flood barrier tubes

Step 7: Close the Caps

Here’s how to close the caps accurately.

  • When the dam element is half full, leave the cap open until water starts to escape.
  • Close the cap.
  • Carefully observe the filling process and immediately stop when the filling pressure is reached.
How to check filling pressure when deploying Beaver® tubes

Step 8: Check the Filling Pressure

When filling, please ensure the maximum internal water pressure is 0.2 bar.

Here’s how to check the filling pressure correctly.

  1. Hold up the filling hose and take off the cap.

  2. The height of the water fountain must not exceed 0.5 m.

Deployment of BEAVER mobile flood barrier is complete.

**Important information for types M1/ M1XL / H1:

The single hose must be supported on the land side (e.g. by a wall). This is the only way to withstand the water pressure and prevent the hose from rolling away. The stability and resistance to tipping of the system are impaired when a third hose is placed on top. Position  a sandbag every 2 metres on the land side. This measure will help to boost the resistance of the taller dam to tipping over. This option must ONLY be used in an extreme emergency.

Taking Down

Following the deployment, here’s how to dissemble the BEAVER mobile flood barrier tubes and store them back in place. 

Taking down Beaver® mobile flood barrier

Step 1: Drain Water

Open the clamping plates – the water will drain away. Check for any damage to the hose dam. If so, it must be professionally repaired. 

Folding Beaver® flood barrier after deployment

Step 2: Fold or Roll Together 

Once the Beaver hose dam element has been completely drained, dried and cleaned, it is folded up. 

Folded Beaver® mobile barrier tubes after deployment

Step 3: Tie Together 

Tie up the folded hose dam with the straps for storage.Â