Frequently Asked Questions
What is a vortex flow control?
A vortex flow control is a self-activating device that helps to control the rate at which water is allowed to enter downstream drainage systems.
Vortex flow controls use hydraulic effect without the need for moving parts or power to control the flow of stormwater.
When subjected to high water levels upstream, the vortex is induced in the flow to lower the pressure and reduce the discharge flow rate.
How does a vortex flow chamber work?
The way a vortex flow control system works is based on the fluid mechanics principle, which permits flow regulation without any moving parts.
The VFC uses the upstream head and discharge to generate a vortex within the structure of the unit. The water is released at a pre-determined controlled rate to prevent the risk of downstream flooding.
Unlike other conventional methods, the VFC is self-activating. This means that it doesn’t require an external energy supply. It’s also less prone to blockages and allows for a higher flow at the lower head.
What are the benefits of vortex flow controls?
A vortex flow control is an effective means of managing the flow of stormwater before it is released into the watercourse or sewer network.
One of the biggest advantages of using these systems is that they are tailored to suit the specific performance requirements of your application, allowing for precise flow control.
Unlike conventional flow controls (i.e. orifice plates and throttle plates), these devices provide improved hydraulic performance and require less maintenance.
They don’t require any moving parts – offering reliable operation and meaning you won’t need to replace them as a result of wear and tear. This helps you to keep your costs low.
Another thing worth knowing is that vortex flow control chambers don’t rely on external power supplies. Instead, the internal vortex is generated by the water that enters the unit.
The vortex flow control also allows a larger outlet to be used at cross-sections, making it more resistant to blockages.
For more reasons why you should choose vortex flow control chambers, call Cotterill Civils on 0121 351 3230.
Why should I buy vortex flow controls from Cotterill Civils?
Here at Cotterill Civils, we are proud to supply a wide range of vortex flow controls online, and can assure you that each one is tailored to your application and manufactured to the highest quality.
Our VFC systems are made from grade 304 stainless steel and have a life expectancy of up to 120 years. They are highly resistant to abrasion and corrosion and comply with stringent safety regulations.
Although we pride ourselves on offering vortex flow control chambers at some of the most competitive prices around, we can also offer a no-obligation quote for a bespoke control unit – ensuring you don’t pay a penny more than necessary.
If you’re unsure which VFC is best for your requirements, or you need technical advice, be sure to give the team at Cotterill Civils a call on 0121 351 3230. We’ll be more than happy to share our expertise.