ASTM D3829 Borderline Pumping Temperature Tester of Engine Oil

Borderline Pumping Temperature Tester of Engine Oil

This Engine Oil Borderline Pumping Temperature Tester is based on the principle of a micro rotary viscometer and fully complies with the requirements of ASTM D4684 and ASTM D3829 standards. The whole machine has the ability of automated operation and precise temperature control. This instrument is mainly suitable for evaluating the low-temperature pumping performance of multi-stage engine oil, and can be used for oil formulation research and development, factory quality control, and third-party laboratory compliance testing. It is a high-precision testing equipment specifically designed to determine whether the oil can still be pumped normally after long-term low-temperature standing.

Working Principle:

Essentially a Mini-rotary viscometer (MRV), it simulates the entire process of engine oil undergoing long-term low-temperature static storage in the oil pan → slow cooling → low-shear pumping.

Related Standards:

• ASTM D4684:Standard Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low Temperature

• ASTM D3829:Standard Test Method for Predicting the Borderline Pumping Temperature of Engine Oil

Features:

1. Temperature Range: -5℃ to -40℃, Temperature Control Accuracy ±0.1℃;

2. Multi-point temperature calibration, high temperature measurement accuracy

3. The Engine Oil Borderline Pumping Temperature Tester uses semiconductor refrigeration, resulting in rapid cooling and high temperature control accuracy.

4. Temperature, cycle, and rotor movement are monitored by a computer.

5. The Borderline Pumping Temperature Tester features a delayed start function for convenient and flexible control of the testing process.

6. The Engine Oil Borderline Pumping Temperature Tester uses an improved pulley assembly, enhancing pulley stability and sensitivity, and employs photoelectric sensor testing.

7. The Borderline Pumping Temperature Tester can simultaneously test five rotors, offering versatility.

8. The rotors are equipped with insulated transparent acrylic covers.

9. Microcomputer control, Windows operating system, all-English interface.

10. The program can automatically perform nonlinear curve temperature control, determining yield stress and apparent viscosity.

11. Temperature control curves can be customized according to user requirements.

12. The Borderline Pumping Temperature Tester has cleaning and temperature control functions, as well as temperature calibration.

13. Viscometer constant calibration and storage.

14. Test results can be stored and printed.

15. Calculation and printing functions for boundary pumping temperatures of "vapor resistance type" and "flow-restricted type".

16. The Borderline Pumping Temperature Tester is equipped with dedicated low-temperature constant temperature equipment.

17. The Engine Oil Borderline Pumping Temperature Tester is equipped with a newly developed defrosting system.

Technical Parameters:

Product Details of Borderline Pumping Temperature Tester: