Here are some high-precision grease measuring devices:
Turbine flowmeter: such as the LWGY turbine flowmeter from Jinhu Kaiming Instrument Co., Ltd., the accuracy can generally reach ± 1% R, ± 0.5% R, and high-precision models can reach ± 0.2% R. Its repeatability is good, and the short-term repeatability can reach 0.05% to 0.2%. The working principle is that when the fluid passes through the pipeline, it impacts the flow meter blades, causing the flow meter to overcome friction torque and fluid resistance torque and rotate. Within a certain flow range, the rotational angular velocity of the flow meter is proportional to the fluid velocity, and the fluid flow through the pipeline can be calculated from this.
Gear metering pump: Models such as mzr-11508X1 from German HNPM, with a flow range of 0.19-1152 milliliters per minute, suitable for transporting oils and fats. This type of pump rotates within a sealed pump casing through a pair of meshing gears, forming a sealed volume chamber. As the gears rotate, the oil is transported from the inlet to the outlet, and the flow rate of the oil is accurately measured by controlling the speed of the gears and the structural parameters of the pump.
Quantitative grease injection valve: such as FA101 electric grease injection valve of Taiwan, China Youlian and RD series of Ruijie. These quantitative grease injection valves achieve quantitative grease injection by precisely controlling the opening time and stroke of the valve, suitable for different viscosities of grease. Different specifications can be selected according to needs, such as 1g, 3g, 10g, 30g, 150g and other products with different quantitative ranges.
High precision electronic scale: In some situations where higher precision is required for measuring oil and fat, such as laboratories or small batches of high-value oil and fat, high-precision electronic scales are used. It converts the weight of oil into an electrical signal through a weighing sensor, and after amplification and processing, displays the weight value of oil with an accuracy of 0.1g or even higher.
Nuclear magnetic resonance (NMR) analyzer: uses the magnetic field response of internal atoms of a substance to analyze oil content. It is not only non-destructive, but also has a relatively fast measurement speed, and can obtain results within a few minutes. It is commonly used in oil production enterprises and scientific research institutions to accurately evaluate oil content.
Online oil moisture content analyzer: such as MAZ-Mw100 Gr from MAYZUM, which uses microwave energy attenuation technology and polynomial algorithm software, can accurately measure the moisture content in oil and indirectly reflect the purity of oil and other information. The equipment has high accuracy and the highest resolution can reach 50PPM.
Lubricating grease flow meter: SKF's LAGM1000E can accurately measure the lubricating grease flow rate, expressed in metric (cm ³ or g) and American units (USfl. oz or oz), suitable for most NLGI0-3 lubricating greases and all SKF manual grease guns.