Project Description

Release holes

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.

release holes for the evacuation of pollution

Technical specifications:

  • Quantity: 10 release holes per dam as standard. Option to add more when ordering.
  • Diameter: 4.5 ” (11.4 cm)
  • Flow: varies between 35 m3 and 75 m3/hour depending on the retention height
  • 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
anti-pollution dam relief holes
dam pollution water-gate for rivers open release hole
Pollution retention dam for rivers
Share This Story, Choose Your Platform!