— Precision, Reliability, the Top Choice for Lubricant Quality Control
Strictly complies with SH/T0059 standard. Split-type structure with advanced temperature control technology makes evaporation loss testing easier and more accurate.
In lubricant R&D and quality control, evaporation loss is a key indicator affecting oil consumption, emissions, and high-temperature performance. The DFYF-146 Lubricating Oil Evaporation Loss Tester (Noack method) is designed and manufactured in accordance with the SH/T0059 standard. It adopts a metal-bath heating control technology to provide a stable and efficient testing solution for laboratories.
DFYF-146 Key Advantages
✅ Split-type structure for convenient operation
The instrument consists of independent units: a metal-bath heating system, a temperature control system, and a constant airflow pressure system. The layout is clear, maintenance is easy, and the design is both aesthetic and practical.
✅ Aluminum alloy evaporation bath – uniform heating and durability
The evaporation bath is made of high-quality aluminum alloy. The aluminum heating tape is tightly integrated with the constant-temperature alloy, ensuring uniform heat distribution across the bath. Combined with efficient insulation materials, it remains stable and reliable even after long-term use.
✅ Microcontroller-based precise temperature control with adjustable correction
The main unit features a single-chip microcontroller temperature control system with a range from ambient to 250°C and an accuracy of ±0.5°C. Users can set temperature correction values based on calibration results, achieving more precise control and a low failure rate.
✅ Automatic timing + test completion alarm
A built-in evaporation bath test timer provides an automatic audible and visual alarm when the test is finished, eliminating the need for manual supervision and improving testing efficiency.
✅ Stable airflow pressure, fully compliant with standards
The inclined tube pressure is stable at 19 ± 2 Pa, meeting the constant airflow requirements of the Noack method and ensuring repeatability and reproducibility of test results.
DFYF-146 Technical Specifications
Parameter | Value |
Power supply | AC220V, 50Hz |
Heating power | 1200W |
Temperature control range | Ambient ~ 250°C |
Temperature control accuracy | ±0.5°C |
Inclined tube pressure | 19 ± 2 Pa |
DFYF-146 Applications
Quality inspection in lubricant manufacturing enterprises
Third-party testing laboratories
Oil R&D in research institutions and universities
Evaluation of high-temperature evaporation loss for engine oils, transmission fluids, and industrial lubricants
Why Choose Us?
We specialize in the R&D and manufacturing of petroleum analysis instruments. The DFYF-146 not only meets standard method requirements but also features optimizations in heating uniformity, temperature control accuracy, and operational convenience. The whole unit undergoes rigorous testing, offers stable performance, and is backed by timely after-sales service – making it a trustworthy partner for your laboratory.
Contact us today for detailed quotations and technical support!

