## SH416 Automatic Engine Oil Borderline Pumping Temperature Tester (ASTM D3829 Compliant)

The SH416 Automatic Engine Oil Borderline Pumping Temperature Tester is developed and manufactured in accordance with Chinese national standard **GB/T 9171‑1988 Method for Measuring Borderline Pumping Temperature of Engine Oils** and petrochemical industry standard SH/T 0562. It also complies with ASTM D3829 and ASTM D4684 standards.

This instrument is used to determine the borderline pumping temperature, low‑temperature yield stress and apparent viscosity of automotive engine oils. It features a broad test temperature range from ‑5 °C to ‑40 °C.

**Alternative product names:**
‑ ASTM D3829 Critical Pumping Temperature Tester with Mini‑Rotary Viscometer
‑ ASTM D3829 Borderline Pumping Temperature Tester with Mini‑Rotary Viscometer
‑ ASTM D4684 Engine Oil Borderline Pumping Temperature Test Apparatus
‑ ASTM D3829 & D4684 Fully‑Automatic Engine Oil Borderline Pumping Temperature Test Equipment
‑ Automated Mini‑Rotary Viscometer for Testing Low‑Temperature Pumping Viscosity of Engine Oils

The entire test procedure is automatically controlled by computer.

Performance characteristics

1, temperature range: temperature range -5℃ to -40℃, temperature control accuracy ±0.1℃

2, Fully enclosed compressor refrigeration, large cooling capacity

3. Temperature, period and rotor movement are monitored by computer

4, Improved pulley components, enhance the stability and sensitivity of the pulley, photoelectric sensor test

5, 5 rotors can be detected at the same time, diversity

6. Transparent plexiglass cover for insulation is provided on the rotor

7, Microcomputer control, Windows operating system, all Chinese interface

8, the program automatically nonlinear curve temperature control, measurement of yield stress and apparent viscosity

9, cleaning control and temperature calibration function

10. Calibration and storage of viscometer constants

11. Test results can be stored and printed

12. Calculate and print the boundary pumping temperature of "gas choke type" and "flow limited type"

13. Equipped with special low temperature thermostat

14, equipped with research and development of the defrost system

Technical parameters

packing list