– Cloud Point, Pour Point, Cold Filter Plugging Point & Solidification Point in One Unit
Introduction:
For reliable low-temperature performance testing of petroleum products, you need an instrument that combines versatility, precision, and robust cooling. The DFYF-131 is designed to determine cloud point, pour point, cold filter plugging point (CFPP), and solidification point in a single benchtop system, meeting multiple international standards.
Standards Compliant:
GB/T 510, GB/T 3535, GB/T 6986, SH/T 0248, ASTM D97
Technical Specifications:
Parameter | Value |
Power Supply | AC220V, 50Hz |
Input Power | 1400W |
Temperature Range | Ambient to –70°C |
Temperature Control Accuracy | ±0.1°C |
Display Resolution | ±0.1°C |
Test Bath Configuration | 4 slots, 8 positions (customizable to 2 slots, 4 positions) |
For CFPP | Requires optional side-mounted suction filtration unit |
Key Performance Features:
1. Advanced Cascade Refrigeration System
Uses two refrigerants and a circulating system in cascade configuration to maintain proper evaporation pressure at very low temperatures.
Both refrigerants condense in the same “evaporator-condenser,” which is thermally isolated from the environment, achieving evaporator temperatures as low as –70°C.
Equipped with an imported SECOP compressor – fast cooling, long service life.
2. High-Precision Temperature Control
When the bath temperature drops below the setpoint, the digital controller signals a solid-state relay to activate the heater, maintaining thermal balance.
Control accuracy of ±0.1°C ensures excellent repeatability.
3. Modular System Architecture
The instrument consists of four integrated systems:
Refrigeration system: High-temp and low-temp units, temperature relay, filter, immersion cooling head – advanced cascade technology for rapid pull-down and deep cooling.
Control system: Stirrer, digital temperature controller, heater, sensor, cooling bath, and control circuit – fast response, high precision.
Measurement system: Test tubes, tube holders, tilting stand. The tube holder can tilt 45° as required by test methods, with an automatic timer and alarm function – significantly reducing operator error.
Suction filtration system: For CFPP testing (requires optional side-mounted unit).
4. User-Friendly Design
Floor-standing, robust construction with built-in casters for easy mobility within the laboratory.
Applications:
Ideal for testing low-temperature properties of lubricating oils, diesel fuels, transformer oils, fuel oils, and other petroleum products in R&D, QC, and production environments.
Key Advantages:
Four tests in one instrument – maximize lab efficiency
Imported SECOP compressor + cascade refrigeration – reliable cooling down to –70°C
±0.1°C precision temperature control
Automatic timing, 45° tilt, and audible alarm – minimizes human error
Meets both Chinese and ASTM standards – internationally comparable results
Contact us today – Make low-temperature testing simpler and more accurate with DFYF-131!
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