A self-activating system with no moving parts to quietly and safely drop water/sewage from heights.

Dropping water from height without some form of control can result in noise, vibration and damage to the network infrastructure.

The Hydro Vortex Drop™ Shaft system is:

• Safe.
• Controlled.
• Efficient.

Applications

• Drop heights of up to 30m.
• Flood control.
• CSO systems.
• Stormwater systems.

No requirement to keep an air core within the drop pipes, therefore pipe sizes are significantly reduced.

• No need for auxiliary air and/or maintenance shafts.
• Safe, controlled and efficient.
• Self-activating with no moving parts.
• A multiple pipe arrangement can be used to accommodate higher flow rates.

Design 

The Hydro Vortex Drop™ Shaft is designed to operate safely in both the air entrained 'vortex' and 'pipe full' modes and ensures a smooth transition between the different modes of operation. At low flows the drop pipes operate in the vortex mode, whilst at design flows they operate in pipe full mode.

Energy Dissipation

The Hydro Vortex Energy Dissipation Unit (EDU) is a simple, self-activating energy dissipation device. It is small in comparison to conventional energy dissipation structures.

Sizing

The Hydro Vortex Drop™ Shaft operates under pipe full conditions at design flows.

• There is no requirement to keep an air core within the drop pipes as in conventional designs.
• Pipe sizes are therefore significantly reduced from the conventional vortex drop equivalent.
• Typically flows of 0 - 2000 l/s can be transferred safely through drop heights of up to 30 m. The use of multiple pipes can accommodate higher flow rates.

 

Frequently Asked Questions

Q. How far can you drop water with a Hydro Vortex Drop™ Shaft?

Depending on the flow rate, up to 33m.

Q. What is the difference between a Hydro Vortex Drop™ Shaft and a conventional drop shaft?

Our design is more compact and is a pipe full design (ie. does not need to maintain an air core).