– Two Functions in One, Accurate and Reliable, for Low-Temperature Flow Performance Testing of Oils
In petroleum product testing, solidification point and cold filter plugging point (CFPP) are two core indicators for evaluating the low-temperature flow performance of oils. The solidification point indicates the highest temperature at which the oil loses fluidity, while the cold filter plugging point more directly reflects the filterability of diesel and other fuels at low temperatures. The DFYF-194 Petroleum Products Solidification Point and Cold Filter Plugging Point Tester is designed and manufactured in strict accordance with GB/T 510 and SH/T 0248 standards. With one instrument capable of determining both key indicators, it is widely used in refineries, quality inspection centers, fuel storage and transportation companies, and research institutions.
1. Standard Compliance and Applicable Samples
The DFYF-194 complies with the following standards:
GB/T 510 (Determination of solidification point of petroleum products)
SH/T 0248 (Determination of cold filter plugging point of diesel and domestic heating oils)
Applicable sample types:
Diesel, biodiesel and its blended fuels
Lubricating oils, base oils
Fuel oils, kerosene
Other petroleum products requiring solidification point or CFPP determination
2. Key Technical Specifications
Parameter | Specification |
Power Supply | AC220V, 50Hz |
Input Power | 1200W |
Temperature Range | Ambient ~ -68°C |
Temperature Accuracy | ±0.1°C |
3. Performance Features
3.1 Two Functions in One – Compliant with Dual Standards
The instrument meets the testing requirements of both GB/T 510 (Solidification Point) and SH/T 0248 (Cold Filter Plugging Point) – eliminating the need for two separate instruments and saving laboratory space and procurement costs.
3.2 Left-Right Partition Design – Rational Layout
Left side: Refrigeration section, featuring an imported compressor and cascade refrigeration technology – fast cooling, stable performance, and long service life
Right side: Control and test section – rational structure, easy to operate
3.3 High-Precision Intelligent Temperature Control
Equipped with an intelligent digital temperature controller, the instrument achieves a temperature control accuracy of ±0.1°C – ensuring accurate, stable, and reliable test results.
3.4 Suction Filtration Device for CFPP Testing
The instrument is equipped with a suction filtration device (side-mounted) specifically for the filtration operation in CFPP determination – easy to use and fully compliant with SH/T 0248 standard requirements.
3.5 Automatic Timer Function
The instrument features an automatic timer function, eliminating the need for operators to use an external stopwatch or manual timing – simplifying the test process and improving efficiency.
4. Difference Between Solidification Point and CFPP – Instrument Value
Parameter | Solidification Point (GB/T 510) | Cold Filter Plugging Point (SH/T 0248) |
Test significance | Highest temperature at which oil loses fluidity | Lowest temperature at which diesel passes through a filter |
Applicable products | Various petroleum products | Diesel, heating oils, biodiesel |
Correlation with engines | Macro fluidity | Low-temperature filterability and fuel supply |
Test method | Tilt test tube to observe flow | Determine if sample passes through filter screen |
Value of DFYF-194: One instrument completes both tests – evaluating both macro low-temperature fluidity and actual filtration behavior, providing a more comprehensive assessment of fuel low-temperature performance.
5. Comparison with Traditional Solidification Point / CFPP Testers
Feature | Traditional Separate Instruments | DFYF-194 All-in-One |
Function | Two separate instruments for solidification point and CFPP | Two functions in one |
Refrigeration method | Ordinary compressor or Peltier cooling | Imported compressor + cascade refrigeration – fast cooling |
Temperature accuracy | Typically ±0.5°C or lower | ±0.1°C high accuracy |
Suction filtration device | External or basic | Built-in side-mounted device – convenient and standard-compliant |
Timing method | Manual stopwatch | Automatic timer |
Structural layout | Scattered or messy | Left-right partition – rational layout |
Standard compliance | Partial | Fully compliant with GB/T 510 / SH/T 0248 |
6. Typical Applications
Refinery quality control laboratories – Routine solidification point and CFPP testing of diesel, lubricating oils, base oils, and more
Biodiesel production facilities – Low-temperature flow performance evaluation of blended fuels
Fuel storage and transportation companies – Fuel supply quality control in low-temperature winter regions
Third-party testing agencies – Standard solidification point / CFPP analysis of batch samples
Research institutions – Study of oil low-temperature flow performance and evaluation of additive effectiveness
7. Service and Support
We provide full technical support – from installation and commissioning to operator training and after-sales maintenance. The DFYF-194, with its two functions in one, cascade refrigeration, and high-precision temperature control, is a reliable choice for your low-temperature flow performance testing needs.
About Us
With nearly 40 years of specialized experience, Dalian Analysis Instrument Factory is a leading manufacturer of petroleum product testing instruments. We are ISO 9001 (2000) certified, ensuring reliable quality assurance in design, production, and after-sales service.
Our product line covers more than 100 varieties, including analyzers for gasoline, kerosene, diesel, lubricating oils, greases, and general laboratory equipment.
Contact Us
For standard models or customized solutions – we are here to help you improve your low-temperature flow performance testing capabilities.
Sales Email: [lovecarlos2000@gmail.com]
24-Hour Hotline: +86 15941156556
