Turbine & Oval Flow Meters
Cross Company Turbine Flow Meters
The turbine meter is a volumetric measurement device which operates by sensing the linear velocity of the fluid passing through it. The design of a liquid turbine meter is relatively simple. It consists of a cylindrical housing similar to a pipeline spool piece, a precision balanced free-running rotor, and a pick-up assembly positioned as close to the rotor as practical without penetrating the housing wall.
Fluid passing through the meter causes the turbine to rotate. Small pieces of ferrous metal embedded in some (or all) of the turbine fins pass through the magnetic field generated by the pick-up coil. This disturbance in the magnetic field is interpreted by the flow computer as a pulse.
Quantifying the total number of pulses in a given time period allows the meter to accurately interpret/measure the total volume of fluid passing through the meter.
Typical Applications for Turbine Flow Meters
In general, liquid turbine meters are well suited for measurement of any low viscosity liquid (50 cP is the suggested max) that is chemically compatible with the materials of construction of the turbine meter. Available meter materials include 316SS, Brass, Aluminum, PVDF, PVC, and Epoxy Coated Carbon Steel.
Consider using a liquid turbine meter in applications where you’re currently using a Variable Area (Rotameter) Flow Meter, but may need more information than just flow rate. Most turbine meters can be equipped with flow computers/displays offering flow rate and flow totals.
Applications to avoid would be any fluid whose properties (viscosity and/or specific gravity) can change based on environmental conditions, etc. The most common example is motor oil, which can be very thin when heated and very thick when cooled. Turbine meters are calibrated to specific fluid properties and any changes to that can greatly affect the accuracy of the meter.
Cross Company is proud to partner with both Hoffer Flow Controls and Flomec to provide high-quality turbine meter solutions.
Low viscosity liquid measurement
Brass, Aluminum, PVC, and more
Flow rate and flow total displays
Can be equipped with computers
Calibrated to specific fluid properties
Accurately measure total volume
Cross Company Oval Gear Flow Meters
Oval gear meters are a member of the positive displacement flow meter family. They operate by repeatedly filling and emptying compartments of a known volume with a liquid. The flow rate is then calculated based on the number of times these compartments are filled and emptied.
Oval gear meters are generally not recommended for water or water-like fluids, because of the increased risk of fluid slippage between the gears and chamber walls. The exception would be in low flow applications where a turbine meter would not be an appropriate choice due to the low flow velocities.
Our offering from Flomec includes mechanical oval gear flow meters and pulse oval gear flow meters with either BSP, NPT, or 150# ANSI Flange fittings.
Because of the very tight tolerances found within an oval gear meter, even a grain of sand in your fluid could potentially stop the gears from turning. To prevent that, we recommend installing a strainer upstream of your oval gear meter.
For more information on oval gear flow meters, read our technical bulletins Selecting an Oval Gear Meter and Oval Gear Meter Installation and Troubleshooting.
Typical Applications for Oval Gear Flow Meters
Some common applications for oval gear flow meters include
- Lubricating oil
- Greases
- High viscosity fluids
- Epoxies
- Polyurethane
- Fuels
- Solvents
- Chemicals
- Additives
Offering Solutions From Leading Brands
Previous
Next
Why Cross Turbine and Oval Flow Meters?
Partnering with Cross Company Process Solutions for your process instrumentation provides you with numerous advantages that can significantly enhance your operations and streamline your processes. Whether it’s benefitting from our extensive expertise, our industry experience, our comprehensive product offering, or even our world-class customer support, if you need process instrumentation, we have a solution.
As a forward-thinking, future-minded company, we stay up-to-date with the latest advancements in process instrumentation and flow technology. We do this by maintaining and creating strategic partnerships with respected, industry-leading manufacturers. And by partnering with us, your operation stands to benefit from those partnerships.
By choosing Cross Company Process Solutions for your process instrumentation, you get the advantages of extensive expertise, a comprehensive product portfolio, customized solutions, exceptional customer support, and continuous innovation. Our commitment to our customers and our leading solutions make Cross a reliable partner for your process instrumentation needs.
Downloads
Related Flow Measurement Products
At Cross, we offer much more than just turbine and oval gear flow meters. We can also provide the solutions our process manufacturing partners need to succeed. Check out our other process instrumentation equipment and see for yourself.
