Release holes, closable
Control the discharge flow of clean water.
To avoid surface pollution overflowing, a stable height must be maintained upstream of the dam.
Open the required number of release holes at the foot of the dam in order to maintain a stable level.
It is possible to open and close the release holes during use by simply applying pressure to the hatch.
![retention-pollutions-evacuation trous de relâche pour l'évacuation de la pollution](https://en.megasecureurope.com/wp-content/uploads/2017/11/retention-pollutions-evacuation.jpg.webp)
Technical specifications:
- Diameter: 4.5 ” (11.4 cm)
- Operated by Velcro straps, allowing the holes to be opened and closed during use
- The directional valve held in place by straps directs the flow directly onto the anti-erosion flap to facilitate the operation and protect the river bed
Reference | Number of release holes per barrier |
---|---|
WT-2825 | 14 |
WT-2835 | 24 |
WT-2850 | 39 |
WT-3930 | 19 |
WT-3950 | 39 |
Custom manufacturing for WT-50 and WT-60 models
![trous-relache-barrage-pollution-watergate](https://en.megasecureurope.com/wp-content/uploads/2017/11/trous-relache-barrage-pollution-watergate.jpg)
![fermeture-trou-relache-watergate](https://en.megasecureurope.com/wp-content/uploads/2017/11/fermeture-trou-relache-watergate.jpg)