Component: Vortex flow control

Description

A self-activating device that provides improved hydraulic performance over conventional flow controls such as orifice plates and throttle pipes and reduced maintenance requirements.

 

It consists of an intake, a volute and an outlet. Flow is directed tangentially into the volute to form a vortex. High peripheral velocities induce an air-filled core with resulting back pressure that reduces the rate of discharge of the flow.

 

Advantages and disadvantages

Advantages	Disadvantages
Larger opening than orifice plates or throttle pipes. No moving parts Individually sized for precise flow control Range of fitting types / options for retrofit Reduces upstream storage requirements Adjustable versions available to provide future-proofing Reduces risk of blockage Minimal maintenance requirements	More expensive than orifice plates or throttle pipes May require confined space entry if removal or replacement is required

 

 

Where component can be used?

Residential:  Yes

Commercial/industrial:  Yes

High density:  Yes

Retrofit:  Yes

Contaminated sites:  Yes

Sites above vulnerable groundwater: Yes

 

Performance

Peak flow reduction:  Good

Volume reduction:  Good

Water quality treatment: Low

Amenity potential:  Low

Ecology potential:  Low

 

Maintainence

• Litter/trash removal

• Chamber/sump cleaning

• Visual inspection

 

Read more on:

• Inlets, outlets & control structures
• Inlets, outlets & controls