Kinematic viscosity is an important indicator for measuring the flow performance of liquid petroleum products (specifically Newtonian liquids), which is a measure of the internal frictional force of the liquid when it flows under the action of gravity. It is usually measured at a constant temperature, and its value directly affects the performance of petroleum products under different working conditions, such as the smoothness of lubricating oil flow in low-temperature environments and the atomization effect of fuel oil.
The kinematic viscosity of liquid petroleum products changes with temperature. Generally, the lower the temperature, the greater the viscosity, and the flow resistance also increases accordingly. For petroleum products that need to be used in low-temperature environments (such as vehicle lubricating oil in cold regions, aviation fuel, etc.), low-temperature kinematic viscosity is a key quality indicator - if the low-temperature viscosity is too high, it may lead to difficulties in starting the equipment, insufficient lubrication of components, and even cause mechanical failures. Therefore, accurately determining the kinematic viscosity of liquid petroleum products under specific low-temperature conditions is of vital importance for product quality control, adaptation to application scenarios, and safe operation of equipment. Specialized low-temperature kinematic viscosity testers are often used for related tests.
The SD265F low-temperature kinematic viscosity tester is manufactured in accordance with the industry standard SY/T5651 "Technical Conditions for Kinematic Viscosity Testers of Petroleum Products" of the People's Republic of China and complies with the requirements of the national standard GB/T265 "Method for Determination of Kinematic Viscosity of Petroleum Products and Calculation of Dynamic Viscosity". It is specifically designed for determining the kinematic viscosity of liquid petroleum products (Newtonian liquids) at a constant temperature. The applicable testing objects include petroleum products and chemical products.
This instrument adopts a special glass tank for low temperature, which has good heat preservation and is convenient for clear observation of the sample. The desktop all-in-one design makes the instrument more integrated. Paired with an electric stirring device, it can ensure uniform temperature inside the bathtub. Its core technical parameters are as follows: The working power supply is AC 220V±10%, 50Hz; The temperature-controlled heating power is 1800W. The stirring motor has a power of 6W and a rotational speed of 1200r/min. Temperature measurement range: -40-80℃ (2 holes), temperature control accuracy: ±0.1℃. It adopts compressor refrigeration and can meet the requirements of low-temperature testing. The relative humidity of the working environment is allowed to be less than 85%. The instrument dimensions are 780, 450, and 630mm, and the weight is 60kg. (Note: The appearance, dimensions, and weight of the instrument are for reference only and may change slightly during updates without further notice.)
Meanwhile, the manufacturer, Shandong Shengtai Instrument Co., LTD., offers comprehensive quality assurance: the instrument materials are brand new and comply with national quality standards, accompanied by certificates of conformity, and the main components meet technical requirements. The overall quality guarantee period for the machine is one year (excluding normal wear and tear of vulnerable parts). During the warranty period, any quality issues will be repaired free of charge. If the fault is caused by the user's responsibility, a reasonable charge will be made. The equipment offers lifetime discounted supply of spare parts and provides complete machine maintenance and repair services. After the warranty period expires, only the cost will be charged for maintenance and technical services. The instrument packing list includes 1 main unit, 2 capillary tube racks, 1 power cord, 1 thermometer, 1 10A fuse tube, 4 optional capillary viscometers, 1 user manual, 1 ear bulb, 1 packing list and 1 certificate of conformity.