For water management operations that are looking to increase the ease and accuracy of their measurement, one of the best tools to use is a flow metering manhole. Flow metering manholes provide all the flow measurement and management tools in one convenient location, which is why so many operations are turning to this solution.

However, what you might not know is that there are actually two different styles of flow metering manhole, which means it’s important to learn about these styles so that you can be sure to get the right fit for you. Learn about the two different types of flow metering manhole you could use and find out which option will give your system the most flexibility and utility.

Manholes for Open Channel Flow

The most common type of manhole that you could use for your water management system is known as an open channel flow metering manhole. An open channel manhole will generally be paired with a flume for management and measurement, as flumes require lower head losses than weirs and can be purchased in varying styles so that your system gets the right product.

However, there are certain disadvantages to using an open channel flow metering manhole with a flume that you should be aware of. For example, flumes are not suitable for measuring dam seepage, weirs are preferable. Also, if the manhole line size is too high, a flume is generally not recommended.

 

Benefits of a Closed Pipe Manhole

The other type of manhole that you could choose for your water management system is a closed pipe flow metering manhole. The biggest difference between a closed pipe manhole and an open channel manhole is in terms of what measuring tools that they employ.

Instead of a flume, which is the measurement device of choice in open channel manholes, closed channel manholes use a device called a mag meter. Mag meters are extremely affordable and very accurate. On the other hand, to allow for servicing, mag meters and closed pipe manholes require an additional isolation valve, which can make it difficult your other important equipment due to a lack of space.

 

Which Manhole Type is Right for You?

Now that you know more about the two types of manholes that you could use in your water management system, you can decide which is the right choice for you. All things being considered, an open channel manhole is probably the better option. While closed pipe manholes do lend themselves to highly accurate measurements, open channel flow metering manholes provide for easier operator use while still providing top accuracy.

By choosing the right flow metering manhole for your system, you’ll be increasing your success rate and ensuring that your operators can perform their jobs more effectively and safely.

 

Purchase a Flow Metering Manhole Today

Running a successful water management operation depends on having the right tools for the job, and as we have seen, there is almost no better tool than a flow metering manhole. Get the flow metering manhole your operation needs by working with Tracom, FRP.

Tracom produces a wide range of water management products that allow you to manage and measure flow easier than you’ve ever imagined possible. Get a quote from Tracom today and find your perfect products.