At Litre Meter, we are specialists in designing, manufacturing and supplying flow measuring applications. With a wide range of high-quality flow meters on offer, we offer the best application for every material or requirement to guarantee you the most accurate results, whatever the job.(see also: Chemical Injection)
The rotary piston flow meter is one of the most common choices to measure the flow rate of high viscosity materials. Using an oscillating piston, it is a highly accurate and efficient measuring device.
Also known as positive displacement flow meters, they work by counting the known fixed volumes repeatedly by using its compartments and its oscillating piston. This means that the volume can be monitored and measured easily to present you with accurate results.
Rotary piston flow meters can be used for most fluids, and is particularly good for measuring low flows as well as high pressure chemicals.
Pelton Wheel flow meters work using a large blade area with ferrites and a sensing coil to measure the flow rate of all kinds of liquids. They are a great choice for jobs that need to monitor and measure very low flows, including highly corrosive chemicals.
As the flow enters the meter, the rotor begins to turn at a speed proportionate to that of the flow rate. The small sensing coil detects the ferrites on each tip of the blades as they pass, which is why the Pelton Wheel is also referred to as a radial turbine.
Vortex flow meters use the behaviour of fluid oscillations to determine a fluid’s velocity and rate. It does this by utilising the fluid’s own properties in induce fluctuations in it, including its pressure, density and viscosity – to name a few. The fluctuations create vortices which the flow meter can detect to make its measurements.
Vortex flow meters have no moving parts, as well as a high tolerance to particulate flow. This is why they are a common choice of application for when the more traditional flow meter technologies are out of spec, for example if they need to deal with temperatures that very high or low.
By using ultrasonic waves, ultrasonic flow meters can measure the travelling times and the frequency shifts of a fluid. As the fluid enters the flow meter, the waves pass through the flow to accurately calculate the information needed.
Ultrasonic flow meters are known to work particularly well for measuring water and other liquids over a range of velocities, however can also provide accurate measurements for a certain amount of solid content too.
Turbine flow meters use a vaned rotor to determine the average velocity of a fluid as it travels through it. This rotor is found inside the meter, centred on a shaft and rotatable on bearings. You’ll find that tube bundles support the shaft, helping to provide an element of flow conditioning and promoting accuracy in the reading.
These work well for low viscosity chemical flow metering, and are available in a range of sizes.
Using the fluid and the fluid’s properties, the helical screw flow meter contains screws that rotate as the fluid flows through it. Inside, there are two counter rotating gears that create a continuous and constant volume cavity. This cavity with its known volume means that the flow rate of a fluid can be calculated using the number of revolutions.
Little force is necessary to rotate the gears making the helical screw a good application for a wide range of materials, including very high viscosity fluids.
From the stringent hygiene requirements of the manufacturing process to simple dispensing measurement at the point of sale, industry relies on flow measurement. At Litre Meter, we supply a range of Digmesa technologies that offer a cost-effective solution for those looking for a flow measuring application.
Whether you require cold drinks or beer dispensing, cellar auditing systems, coffee makers, or flow meters for vending machines, these Digmesa meters will help. They are ideally suited for low pressure chemical flow measuring using plastic bodies from Arnite, PEEK or PVDF. Contact us for more details.