Litre Meter specialise in the design, manufacture and supply of flowmeters. xxxx Listed below are all the flow meters within our range that are suitable for tanker loading:
Inline ‘axial’ turbine flowmeters are velocity measuring devices - they measure the average velocity of a fluid flowing through the body of the meter. Mounted within the body of a gas turbine flowmeter is a vaned rotor. The rotor is centred on a shaft and allowed to rotate on bearings. The shaft is supported in the housing by tube bundles that also provide a measure of flow conditioning for the fluid stream. Good for gas flow metering particularly at higher pressures. Wide size range and excellent accuracy. 0.15 to 3.5 up to 200 to 12,000 ACFM. ±1% reading - typical. ±0.25% repeatability. Good for water flow metering. Wide size range and excellent accuracy. 0.24-17 up to 3028-56775 litres/min. Overrange 150% intermittent. ±0.25% reading - typical. ±0.1% repeatability.
Magnetic flowmeters, also known as electromagnetic flowmeters or induction flowmeters, obtain the flow velocity by measuring the changes of induced voltage of the conductive fluid passing across a controlled magnetic field. The fluid has to be conductive so tap water and waste water are OK. Care has to be taken in measuring solvents, hydrocarbons, de-ionised and demineralised water where electromagnetic flow meters are not normally used due to low conductivity. Contact Litre Meter for full details. 3mm to 2000mm although insertion units can be used up to 3000mm. ±0.2% over flow range 0.5 to 5 m/s; turndown 1000:1; maximum velocity 10 m/s.
Positive displacement flowmeters, also known as PD meters, measure volumes of fluid flowing through by counting repeatedly the filling and discharging of known fixed volumes. A typical positive displacement flowmeter comprises a chamber that obstructs the flow. Inside the chamber, a rotating/reciprocating mechanical unit is placed to create fixed-volume discrete parcels from the passing fluid. The helical screw principle uses 2 counter rotating gears to form a continuous constant volume cavity. Versions OMG and OME in steel and aluminium have the best characteristics for batching and optional pole-wheels enable increased pulse output for finer batch resolution; +/-0.1 to +/-0.3% accuracy, +/-0.01% repeatability. 0.1 to 7500 l/min. The OMK is a stainless steel version suitable for water flow metering; 0.2 to 100 litres per minute, +/-0.5 to +/-2% accuracy, +/-0.1% repeatability.
