How To Operate the ‘Bermad Connect’ App
How to operate the Bermad Connect App Bermad Connect is an intuitive app that enables users to scan or enter the serial number of a Bermad product and access all the information you need to...Read more
Learn about 'fast moving transient pressures', including their causes, travelling speeds, and how to choose a valve to mitigate their impact.
In water transfer pipelines, there are many conditions that can occur to generate water hammer.
Water hammer conditions are typically caused by situations that, in turn, incur a rapid reduction in flow within the pipeline.
Examples of this phenomenon include:
In any of these examples, the surge in pressure that runs along the pipeline is referred to as a ‘fast moving transient pressure’. These transient pressure events can move at speeds varying from 250 to 1200m/s, depending on the pipe material type and wall thickness.
To view the potential impact and behaviour of a fast moving transient pressure, watch this surge analysis of a pipeline that does not incorporate any surge-mitigating products:
The challenge is to fit a device that will remove these fast-moving transient pressures from the pipeline.
One method is to install an incredibly fast-acting pressure relief valve, such as the CSA valve model VRCA.
This valve is typically fitted directly on top of the pipeline and will open instantly in an event where the pressure line rises sharply above a normal operating condition.
This valve is available in a range of sizes from 80mm up to 200mm. It is proven as an accurate and reliable solution in removing fast-travelling transient pressures from a pipeline.
To see the value and advantages of a correct implementation, watch this modelling software show the behaviour of a pipeline that incorporates surge-mitigating products:
For further advice or support in relation to correctly sizing and incorporating fast-acting relief valves into pipelines, please contact your nearest Bermad office or make an enquiry.Make enquiry