Although it would be nice if purchasing a flow management device were as easy as grabbing a flume or weir off the shelf, getting the tool that’s right for you is a bit more complicated. There are several factors that must be considered before you buy your device, and if you’re not sure what these factors are or why they’re important, you’ll have a much harder time choosing a device that will allow you to measure flow accurately.
Fortunately, after learning a few simple tips, you should be able to buy the flume or weir that suits your needs perfectly. Learn about a few factors to keep in mind before buying a flume or weir so that you can be sure you spend your money on the right device.
The most important factor to consider before you purchase your device is how the flow channel is configured. Not every flow device is suitable for every application, so you need to be sure that the flume or weir that you choose will fit into your channel.
For instance, some flumes, such as trapezoidal or RBC flumes, are ideal for outdoor flow management, while others, such as Parshall flumes, can work in both industrial and outdoor applications. With weirs, the biggest factors are whether you can aerate the nappe properly and if there if there is enough room for a properly sized weir pool.
What’s in the Flow Stream
The composition of the flow stream is another factor that you must keep in mind before buying a flume or weir. When we say composition, we’re mostly talking about what types of debris you may find in the flow and not its velocity.
For instance, most types of flumes can pass solids rather easily, and there are even certain types of flumes designed specifically to allow solid materials to pass through. With weirs, solid matter can be a problem if it’s likely that this debris will accumulate in the weir crest. If accumulation is probable, you’ll need to perform frequent maintenance to make sure there is nothing preventing flow from passing over the crest.
Finally, before you purchase your flow device, you need to know the expected range of flow in your system. Certain types of weirs and flumes can handle a wide range of flow rates, while other devices may have a lot of trouble if the flow rate is too high or too low. You will need to know both the maximum and minimum expected flow rates to make sure you can purchase the device that’s right for you.
Purchase Your Device
Once you know these three crucial pieces of information, you should have no issues buying a flume or weir for your system. If you’re ready to make your purchase, Tracom, FRP is ready to help you.
We are one of the nation’s leading manufacturers of flow devices, and we offer a wide array of fiberglass weir boxes and flumes. You can contact a Tracom representative today for a quote or to get help choosing the right device for your application.