When measuring certain types of flow, accuracy is of the utmost importance, and this is especially true when it comes to measuring water rights withdrawals. Increasingly, State Engineer’s Offices are requiring water rights management operations to use flow measuring devices, and this makes it crucial that you use the right device in your system.
If you need to measure water rights withdrawals, it’s a good idea to learn about your different flow measuring device options. Here is some information about flumes for water rights measurement, and tips for purchasing tools for your system from a trusted manufacturer.
Choosing Your Measuring Device
Although there are several options for measuring water rights withdrawals, the most popular option is a flume. When installing a flume, you’ll be getting a versatile device that can take the extremely accurate measurements that you need to comply with your State Engineer’s Office regulations.
For most water rights operations, the best choice for a primary device is a Parshall flume. The most widely used flume type on the market today, a Parshall flume provides a variety of features that are ideal for measuring water rights. For instance, a Parshall flume can be installed fairly quickly, and is available in a variety of sizes, meaning they can be used in both large and small operations. However, Parshall flumes may not be the best choice in systems where you cannot easily adjust the downstream or upstream hydraulics.
Another flume that you could use for water rights measurement is a Cutthroat flume. The main benefit of the Cutthroat flume is its flat floor, which means you won’t have to raise the floor of the flume during installation. Also, because these flumes have vertical side walls, they can handle a wide range of flow types.
Generally, any flume that can be used in agricultural operations can also be used for water rights operations.
Once you’ve decided which type of flume you’ll use in your system, you also need to decide on your flume’s construction material. Typically, two types of material are used in water rights systems: galvanized steel and fiberglass.
While many people choose galvanized steel for its cost, these flumes require a great deal of maintenance and are at risk for several types of environmental damage. If you want the most utility from your flume possible, then fiberglass is the better construction material. For one, fiberglass is lightweight, making for a much easier installation. Second, fiberglass is resistant to corrosion, UV light, and other environmental stressors, reducing the need for regular maintenance.
Purchase Flumes for Water Rights Measurement
Choosing the right flume is an important part of the continued success of your water rights operation. Whether you choose a Parshall or Cutthroat flume, you should be able to take accurate readings and have a measurement solution that will last for years to come, particularly if your flume is made from fiberglass. Purchase the flumes for water rights measurement that you need today by shopping withTracom, FRP.
Tracom produces the finest fiberglass flumes on the market today, and we can help you choose the products that are right for your system.Request a quote today.
Thin plate weirs are one of the most popular primary devices for operations that need to measure flow. A thin plate weir provides a great deal of versatility and accuracy, particularly when you are using your weir in outdoor applications. However, like every flow measuring device, there are certain limits to how you can use your thin plate weir, and learning about these limitations is a good idea before installing this device in your system.
Here are a few limitations of thin plate weirs that you should know about if you’re considering using this device in your operation.
Sizing the Weir Pool
There are a few requirements you will need to meet before installing your thin plate weir, including forming a weir pool. A thin plate weir cannot measure flow unless there is an upstream pool. This pool works to condition the flow before it enters the weir, and must possess certain dimensions, including side contractions and a deep enough bottom.
If you’ve never installed a thin plate weir before, then you might be surprised at just how large your weir pool needs to be to function properly. For example, the channel that connects your weir pool to your weir needs to be between 15 and 20 feet, which can be difficult depending on where you’re installing your weir plate.
If you’re like many flow measurement operations, then one of your main goals in choosing a flow measuring device is probably simplicity. You want a device that can effectively measure flow and needs little to no attention from your operators. A big limitation of using a thin plate weir is the need for continuing maintenance to ensure its accuracy.
Because the weir pool slows the velocity of your flow before entering the weir, sediment frequently builds up in your weir pool. At a certain point, this sediment will impede the flow in your system and affect your success. To ensure your weir plate works the way you need, your operators will need to periodically remove sediment from your weir pool.
Similarly, your weir plate can only accurately measure the flow in your system if the weir crest is maintained properly. Over time, the weir crest of your weir can experience different forms of damage, including abrasions, nicks, and rounding. These imperfections can alter the way that flow spills over the weir crest and reduce the accuracy of your readings. Your operators will need to frequently check your weir crest for damage and address any issues that may affect the integrity of the crest.
A Thin Plate Weir is Still a Great Choice
As you can see, thin plate weirs have several limitations that may not make them the best choice for every flow measurement application. However, as long as you keep these limitations in mind, you can safely install a weir plate in your system and get the accurate readings you need. If you want to use a thin plate weir for your operation, the best solution is purchasing your weir fromTracom, FRP.
Tracom offers weirs, flumes, and other water management products, and can help your operation purchase the right tools.Contact us today.
When you need to measure flow, a flume is perhaps your best choice for a primary device, and this is particularly true when you need to measure piped flow. When connecting a flume to a pipe for measurement purposes, there are several factors that you will need to take into account, including the slope of the pipe.
The slope of the pipe will directly impact the speed of the flow, and if you don’t consider this factor, you may not be able to take the accurate measurements that you need. Learn more about how pipe slope can affect your flume operations, and find out how to make adjustments so that you can take accurate readings.
Basics of Flume Operations
Before learning about how pipe slope can affect your flume, it’s a good idea to cover a few basics of flume operation. The basic function of a flume is to take subcritical flow and accelerate it into a critical state. Accelerating the flow allows your operators to measure the flow rate by taking measurements at a single point. Not only is this convenient, it also increases the overall accuracy of your operation.
For your flume to operate correctly, the flow entering must be in a subcritical state, which can be difficult based on the slope of your pipe.
What’s in a Froude Number?
When you’re trying to determine whether the flow entering your flume is subcritical, critical, or supercritical, you would examine the Froude number. If the Froude number of your flow is below one, then the flow is considered subcritical, which is ideal when entering a flume. A Froude number of 1 means your flow is critical, and anything more than 1 is supercritical.
Clearly, to make sure that your readings are as accurate as possible, the flow exiting your pipe and entering your flume should have a Froude number of 1. However, you should shoot for a Froude number of 0.5.
How Pipe Slope Affects the Froude Number
The reason it’s so important to consider the slope of your pipe is that it can directly affect the Froude number of your flow. As the slope of your pipe increase, it will also increase the Froude number, which can make it difficult to maintain a subcritical state. In addition, the size of your pipe can increase the impact the slope has on your Froude number.
Fortunately, for every size of pipe you could use, there are a range of pipe slopes that will result in subcritical flow. If your slope exceeds this range, however, you will need to make adjustments before you can install your flume.
Help Choosing Your Flume
While a flume is the best choice for measuring piped flows, there are several factors that can impact the accuracy of your reading, including the slope of your pipe. If you want to make sure your operation is as successful as possible, you need the right tools, which is why you should work with the team atTracom, FRP.
Tracom manufactures and sells fiberglass water management products that will match your exact needs. We offer flumes and a wide range of other useful tools.Contact us today to request a product quote.
Generally, measuring flow is easy when you have access to the right tools. However, there are certain situations where measuring flow is difficult, regardless of your measuring devices. For instance, because of the caustic nature of the flow and the risk for sedimentation, measuring wastewater is a very complicated task that requires a great deal of consideration.
If you need to measure wastewater flow, whether in a water treatment plant or in an industrial operation, it’s a good idea to learn about your best options for a primary measuring device. Learn more about operations that require the use of wastewater flumes, and discover how to purchase the right device for your flow measurement needs.
Industrial Pretreatment Operations
While virtually every type of flume can be used at an industrial pretreatment plant, the most common option is a Parshall flume. These flumes can be used at both the effluent and headworks, and are able to handle either treated and untreated wastewater flows.
In larger industrial pretreatment operations, it’s common to split the flow using a Cutthroat flume. This ensures that your flumes will not be overwhelmed when flow rates increase. It is also possible to use Cutthroat flumes for measuring interplant flows. However, as mentioned, this is only for large operations. Most industrial plants will not use these flumes.
Municipal Wastewater Measurement
Another type of operation that will need to install wastewater flumes is a municipal wastewater measurement. Because the wastewater in these operations usually hasn’t been treated, it’s imperative to install a flume that can handle both damaging and high-volume flows.
As with industrial pretreatment operations, municipal wastewater plants will primarily use Parshall flumes to measure flow. The design of these flumes helps them resist sedimentation, and when they’re made from a durable material like fiberglass, they can also withstand the corrosive nature of wastewater.
In more remote wastewater operations, it’s possible to use trapezoidal flumes to measure wastewater flows. The unique shape of Trapezoidal flumes makes them perfect for measuring wastewater flows. However, trapezoidal flumes should only be reserved for smaller wastewater operations, as they’re only available in limited sizes.
Unlike industrial pretreatment plants, municipal operations will almost always include Cutthroat flumes, as there is typically the need for flow splitting and measuring interplant wastewater flows.
Avoid Using RBC Flumes
Because of their convenience in other flow measurement situations, it’s common to consider using RBC flumes in wastewater operations. However, this should be avoided at all costs. The limited range of sizes offered by RBC flumes make them a poor choice for managing and measuring wastewater flows. In addition, these flumes are generally not capable of handling flows that contain a large amount of solid materials.
Purchasing Wastewater Flumes
Operations that need to measure wastewater flows have several flumes that they can choose, allowing them to tailor their measuring device to the needs of their operation. If you’re interested in purchasing wastewater flumes, then your best choice is working withTracom, FRP.
Tracom is proud to offer our customers an exciting catalogue of water management products, including flumes perfect for measuring wastewater flows.Contact a Tracom representative today to discuss our products and to get a quote.
For most water management operations, installing a permanent primary measurement device is a good choice. However, in certain situations, such as measuring watersheds or surface water flows, a permanent flume isn’t necessary. If you only need to measure flow for a set period of time, then a temporary flume installation might be the best solution.
A temporary flume installation allows you to quickly set up and break down your measuring device, providing you with a great deal of flexibility. However, if you want to get the most out of your temporary flume, you need to make sure it’s installed the right way. Here are a few easy tips for a temporary flume installation and advice to help you purchase the right water management tools for your operation.
Securing Your Flume
When you’re installing your temporary flume, your prevailing concern should be how to keep your flume in place. If you don’t secure your flume properly, it will likely shift, resulting in both flow bypass and inaccurate readings.
In most circumstances, you will anchor your flume by using packed earth. However, depending on the shape, size, and integrity of the earthen channel, and the risk for erosion, you may also need to use large pieces of lumber to provide additional support to the upstream and downstream banks. Once you have your basic support structures in place, you can add additional features to increase the utility of your installation.
Adding a Membrane
Regardless of the situation where you’re installing your temporary flume, you need to be certain that you’re minimizing the risk of flow bypass and preventing the upstream channel from being undermined. It is for this reason that many operations choose to add a waterproof membrane to their temporary flume installation.
You can place the waterproof membrane in the upstream channel and position it so that it reaches both the entrance of your flume and the wing walls. With your waterproof membrane in place, you can effectively direct flow into your flume so that you can take the accurate readings that you need.
While most of your installation efforts will be on establishing the right upstream channel, you should be sure that you’re not ignoring your downstream conditions. If you don’t maintain the right conditions downstream of your flume, your channel may experience scouring that causes your flume to shift out of place.
As a final step to your temporary flume installation, you need to ensure the integrity of both the floor of the channel and its sidewalls. If the flow in your system is relatively light, you can add a second, smaller waterproof membrane and secure it using gravel. For larger flows, you may need to use a rip rap.
Tools for a Temporary Flume Installation
As long as you follow the right steps, a temporary flume installation can be a great choice for measuring flows for set time periods. However, before you can begin your installation, you need the right tools, which is why you should shop atTracom, FRP.
Tracom offers everything you need to temporarily measure flows, including high-quality fiberglass flumes.Request a quote from us today so that you can get started installing your flume.
There are any number of situations where you might need to measure water flow, including in earthen channels and furrows. However, measuring flow in these locations can be very difficult, particularly if you don’t have the right tools at your disposal. Fortunately, if you need to measure earthen channel flow and don’t want to set up a permanent installation, you have the option of using a portable RBC flume.
RBC flumes can be manufactured in five different sizes that are scale models of each other, providing you with versatile flow measuring options. Learn about a few of the advantages of measuring flow with portable RBC flumes and find out how you can purchase these flexible tools.
When you’re trying to measure flow in earthen channels, it can be hard to get the accurate readings you deserve due to the non-standard shape of the channel that can lead to flow escaping your primary measuring device. However, if you choose a portable RBC flume, you’ll easily be able to take highly accurate flow measurements.
For instance, RBC flumes have an accuracy rate of about two percent, which is close to the rate offered by thin plate weirs. In addition, these flumes can measure a broad range of flows, making them a great choice for outdoor measurements where flow rate can be inconsistent.
As mentioned, one of the biggest advantages of RBC flumes are their portability. These flumes are meant to be transported from site to site, which means that they need to be both lightweight and durable. While it’s possible to have your flume constructed from stainless steel, the better choice is purchasing a fiberglass RBC flume.
A fiberglass RBC flume provides several advantages you find with other materials. For instance, fiberglass is resistant to several forms of environmental damage, including corrosion and UV light, making it a great option for outdoor operations. Also, fiberglass is extremely lightweight, which is paramount in a portable flume.
Differences in Design
Another reason that the RBC flume makes a great choice for measuring flow in earthen channels and furrows is its unique design. The walls of a RBC flume, for instance, make a trapezoidal shape at the base. However, unlike trapezoidal flumes, the sidewalls do not contract.
The RBC flume differs from other flumes in that flow is directed into the flume via the trapezoidal ramp, and there is no down ramp like you would find in other flume types. On the other hand, RBC flumes cannot be equipped with accessories like end adapters, meaning they cannot be used for measuring pipe flow.
Purchase a Portable RBC Flume
If you’re looking for a convenient, accurate solution for measuring flow in earthen channels, your obvious choice is an RBC flume. When you’re ready to take advantage of the many benefits of portable RBC flumes, then your best solution is shopping withTracom, FRP.
With Tracom, you’ll find a great selection of flow measurement devices, including some of the market’s most popular flume styles. Also, because our products are made from fiberglass, you’ll know that they’ll last for years to come.Contact us today to get more information about our products and to request a quote.