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Flow Monitoring & Control

We offer systems and sensors to monitor and record water flow through open channels and pipes. We can help you to design a complete monitoring and control system, or simply sell you the parts and sensors the you require. We have been working in the flow monitoring business for many years and have the experience and knowledge to help you find the meters, devices and systems to meet your project needs.

Open Channel Flow

We define open channel flow as any flow through a ditch or conduit that is not pressurized. This is important because the sensors and meters are different for a pressurized system as opposed to a non-pressurized system. It is very common to use flumes or weirs in open channel ditches. We offer many styles of flumes and weirs and can provide the needed sensors to create a flow recording system. Checkout our flumes page and our water level sensors page to learn more about using flumes or weirs to record and monitor flow.

We also offer water level sensors and have the ability to create systems that use formulas based on water level to calculate flow in well defined ditches or conduits. This is an option that is used when funding and infrastructure are issues, but this type of flow measurement can be much less accurate and require constant updates to the formula and ditch or channel.

We have Area Velocity meters that can be installed in the bottom of a ditch, channel or conduit. These Area Velocity Meters will measure the depth and the velocity of the water which gives it the ability to calculate flow (discharge). These sensors or systems are very convenient do to the simple installation, but tend to be a little bit more expensive than small flumes and weirs.

We also offer the Flow Probe. This velocity measuring device is very handy for doing flow spot checks in open channel and culvert type applications.

Turbo-Prop Sensor
The Flow Probe incorporates the unique Turbo-Prop propeller sensor, which uses the most accurate positive displacement technique available for velocity sensing.  The Turbo-Prop is designed to shed debris and is protected inside a 2 inch diameter housing.  The probe housing may be placed directly on the bottom of a pipe or streambed for measuring low flows down to 2 inches in depth.  The flow meter propeller rotates freely on its bearing shaft with no mechanical interconnections for minimal friction.  Magnetic material in the propeller tip passes a pickup point in the water velocity meter handle producing electrical impulses that are carried to the readout display by an internal cable.  The Turbo-Prop is easily removed for cleaning or replacement. 

Water Velocity Computer
The water velocity computer receives an electrical signal from the propeller, amplifies the signal, and converts the reading to feet per second (or meters per second, depending on programming).  The large LCD screen displays average, minimum, and maximum water velocity readings.  Up to 30 sets of minimum, maximum, and average data readings can be stored in the water velocity computer.  These data points can be reviewed on the computer screen for later analysis.  The water velocity computer has a water-resistant housing and incorporates a unique four-button operation for changing functions and resetting the display.  The water velocity computer is powered by a non-replaceable battery that will last approximately five years with normal use.  Low battery warnings will also display as appropriate.

Closed Pipe Flow (pressurized)

We can supply many types of flow meters. We recommend the mag meter style of meter for in pipe flow or a transit type meter that straps on the outside of your pipe to monitor the flow. Both of these types of meters have no moving parts and are much easier to install and maintain.

We are a distributor for Greyline Instruments and offer their products in Utah and integrate their systems throughout the USA. Greyline offers a full line of flow and level meters that are used in potable and waste water applications throughout the world. Below are a few images and a brochure. Contact us for pricing and system design help. They offer open channel and pipe monitoring meters.

Flow and Level Meter Types: Ultrasonic, Doppler, Area Velocity, Transit-Time.

Application Note using the AVFM Flowmeter

Flow Control

Flow control is achieved through the use of automated head gates, pumps and valves. Our control systems are capable of interfacing to many types of control devices. Check out our Irrigation page to learn more.

• Actuators
• Automated Head Gates
• Valve Control
• Pumps Control

We can design and install complete systems with remote control and data display. Contact us for a no obligation consultation. We can also arrange to meet with you and provide a presentation and demonstration of these types of systems.