Introduction
An Engler viscometer is a specialized instrument used to measure the viscosity of petroleum products and other liquids by determining the time required for a fixed volume of the liquid to flow through a standard orifice at a specified temperature, and the result is expressed in Engler degrees, which is a relative measure of viscosity used mainly in some European and other industries. In the test, the liquid is placed in a standard cup fitted with an orifice at the bottom, and the cup is immersed in a water bath that maintains the liquid at a specified temperature, such as 20, 40, 50, or 100 degrees Celsius, depending on the product; the flow time for a specified volume, such as 200 mL, of the liquid is measured, and the Engler degree is calculated by dividing this time by the flow time of the same volume of distilled water at 20 degrees Celsius through the same orifice, giving a dimensionless relative value. The Engler viscometer is used for testing lubricating oils, fuel oils, and other petroleum products, and the Engler degree provides a practical, comparative measure of viscosity for product specification and quality control in refineries, testing laboratories, and research facilities, following standardized test methods. Features include precise temperature control, standardized orifices, and thermometers for bath temperature verification. With its standardized measurement procedure, the Engler viscometer is a traditional but still used instrument for comparative viscosity testing of petroleum products.
Engler Viscometer LEV-T2010
Engler Viscometer has a measuring temperature range of 20°C to 100°C. It provides a standard water value of 20k, equal to 51 ±1 seconds. This makes it suitable for testing asphalt or ...
Engler Viscometer LEV-T2011
Engler Viscometer features 100 ml graduated flask and operates within a wide temperature range of 0 to 100 °C. It offers an accurate standard water timing value of 51 ± 1 seconds. It i...
Engler Viscometer LEV-T2010
Engler Viscometer is designed according to the D1665 “Test Methods for Engler Viscosity of Petroleum Products” standard. It is devised with digital temperature controller and its chamb...
Standards
ISO 3219:1993-Plastics-Determination of viscosity using a rotational viscometer with defined shear rate
ASTM D2196-20-Standard Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational Viscometer
Complies with the above standards, but is not limited to them.
Features
1. Engler viscometer for measuring viscosity of petroleum products in Engler degrees.
2. Standardized apparatus with precise orifice and temperature control per test method.
3. Suitable for petroleum oils, lubricants, bitumen and viscous liquid testing.
4. Includes viscometer flask, receiving flask, thermometer, bath and stand.
5. Supports determination of kinematic viscosity via Engler degree measurement.
FAQ
Q1: What testing scenarios is this viscometer mainly applied to?
A: The Engler viscometer is used in petroleum refineries, lubricant laboratories, bitumen testing, fuel quality control and educational institutions to measure the viscosity of petroleum products, lubricating oils, bitumen emulsions and other viscous liquids in Engler degrees, a traditional viscosity unit still used in some regions and standards. It supports petroleum product specification testing, lubricant quality control, bitumen and asphalt emulsion characterization, fuel oil viscosity assessment, and educational demonstration of viscosity measurement. The Engler method measures the time for a fixed volume of sample to flow through a standardized orifice at a specified temperature, comparing it with water flow time. It is essential for petroleum and lubricant testing laboratories, particularly in regions following standards that specify Engler viscosity, for product quality control, specification compliance, process monitoring and educational demonstration of viscous fluid behavior in petroleum, lubricant and bitumen applications.
Q2: What standards does the viscometer comply with?
A: The Engler viscometer follows GB/T 266 for petroleum products Engler viscosity determination, and related standards for petroleum testing. The apparatus dimensions, orifice size and temperature control follow the standard specification. The instrument complies with relevant laboratory safety standards. Temperature accuracy should be verified for compliant testing.
Q3: What is the warranty period for the whole machine and key components?
A: The viscometer apparatus and bath are covered by a 12-month warranty. The viscometer flask, receiving flask and thermometer are glassware or consumables not covered against breakage. Damage from improper use, thermal shock or unauthorized repair is excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained laboratory personnel familiar with Engler viscosity method and petroleum testing. We provide an operation manual and remote guidance. Proper sample preparation, temperature equilibration, timing technique and result calculation are important for accurate Engler viscosity results.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Temperature calibration against a reference thermometer recommended every 6-12 months. Orifice condition and flow time verified periodically with a reference oil. Viscometer flask cleanliness checked before each use. Full apparatus verification per standard method recommended for accredited laboratories.
Q7: Are supporting consumables universal?
A: Thermometers, flasks and reference oils are available from laboratory suppliers, though dimensions should match the Engler method specification. Long-term consumable cost is low.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes bath type, temperature range, number of test positions and automation level. Additional flasks, thermometers and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the viscometer apparatus and accessories with an operation manual. Remote commissioning guidance is provided. On-site service is not included for standard orders.
Q10: What types of samples are compatible with this equipment?
A: The Engler viscometer measures viscosity of petroleum products, lubricants, bitumen emulsions and other viscous liquids within the method range. Samples should be properly prepared and free of impurities that could clog the orifice. Very high viscosity samples may require elevated temperature testing. Users should follow the standard Engler method including proper sample volume, temperature equilibration, orifice cleanliness and timing technique, calculate results as the ratio of sample flow time to water flow time, and report results in Engler degrees with the test temperature specified. The apparatus should be cleaned thoroughly between samples to prevent residue buildup affecting flow time.
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