If you have any familiarity with managing and measuring flow, then you probably already know that the most popular tool for these important jobs is the Parshall flume. Designed for a wide variety of applications, the Parshall flume is the flow management tool on which every operation can depend.
However, despite its track record of reliability, there are some drawbacks to the Parshall flume that you may not be familiar with, which is why it’s a good idea to examine the facts about this tool a little more closely. Check out some of the common drawbacks of the Parshall flume so that you can decide if you should install this flow management tool in your system.
Parshall Flumes Are Not Scale Models
One of the biggest drawbacks of the Parshall flume is that these flumes are not made to be scale models. This means that the measurement equations that you would use for one size Parshall flume will not work for a differently sized flume. So, if you have multiple Parshall flumes in your system, all of which in different sizes, you will need to rate each flume individually to make sure that your readings are accurate.
Issues of Space
When you’re choosing a flume for your operation, one of the most important factors to keep in mind is where you will be installing your flume. Unfortunately, if you’re working with a limited amount of space, the Parshall flume may not be the best option.
The unique hourglass shape of the Parshall flume makes it perfect for applications with different flow rates and solids in the flow are a strong possibility. However, this versatile design also means the Parshall flume requires more installation space than other flume styles.
Different Sizes Are Custom
In certain circumstance, you would need an intermediately sized flume for your operation’s flow management needs. However, if you want to use a Parshall flume, this can be much more difficult than with other flow management devices. As Parshall flumes are not scale models, intermediate sizes must be custom produced. In addition to increasing your expenses, this may mean you’ll need to wait longer than you would want before being able to use your flume.
Existing Channel Installation
Many flow management operations wish to install a flume in an existing channel, which can be hard to do with a Parshall flume. Where flow enters the throat of the Parshall flume, there is a drop in floor elevation, and this drop makes installation in an existing channel very difficult. While it is possible to install a Parshall flume in an existing channel, you would either need to modify the channel or elevate the flume.
Install a Parshall Flume
Even though there are several drawbacks to the Parshall flume, this is still one of the best flow management tools that you could add to your system. If you’re ready to invest in an outstanding fiberglass Parshall flume, then you need to browse the Tracom, FRP inventory.
Parshall flumes are just one of the many fiberglass water management products offered by Tracom. Whatever style of flume you wish to use, we have the perfect option for you. Contact us today.
