Kinematic Viscosity Tester DKV-123

The instrument is designed and made as per “Test Methods for Kinematic Viscosity of Petroleum Products and Calculation of Dynamic Viscosity” and ASTM D 445. It is suitable to determine kinematic viscosity of liquid petroleum products (Newton liquid) at a certain temperature.

Specification :

1. Power supply: AC220±10%, 50 Hz

2. Heating power: (1) Auxiliary heating: 1000 W (2) Temperature controlling: 650 W

3. Stirring motor: 6 W, 1200 RPM

4. Temperature range: ambient temperature～100°C

5. Temperature controlling accuracy: ±0.01°C

6. Constant temperature water bath: 20 L, two layer bath

7. Ambient temperature: -10°C～+35°C

8. Relative humidity: ＜85％

9. Timing device: 0.1s ～999.9 s, resolution is o.1 s

10. Capillary viscometer: 11 pieces in a group, Inner diameters of them are 0.4, 0.6, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 3.5 and 4.0 mm respectively

11. Dimensions (m): 0.61*0.56*0.76, 0.44*0.44*0.48

Efficient, Accurate Kinematic Viscosity Testing with the Kinematic Viscosity Tester DKV-123

Deliver reliable viscosity measurements for petroleum products, lubricants, and industrial fluids with the Kinematic Viscosity Tester DKV-123—a compact, semi-automatic benchtop instrument engineered for compliance with ASTM D445, ISO 3104, IP 71, and GB/T 265 standards. Designed for small to mid-sized laboratories, quality control facilities, and educational institutions, the DKV-123 combines precision temperature control with manual timing flexibility for cost-effective, high-integrity kinematic viscosity analysis.

Engineered for Simplicity and Standards Compliance

The DKV-123 Kinematic Viscosity Tester features a single thermostatic bath with precise temperature regulation (±0.05°C) at common test points—40°C and 100°C—using a high-stability heater and circulating pump to ensure uniform conditions. It accommodates standard glass capillary viscometers (e.g., Ubbelohde or Cannon-Fenske types), and includes a built-in stopwatch and viewing window for manual flow-time measurement. Results are calculated in mm²/s (cSt) using the viscometer’s calibration constant.

Compliant with ASTM D445 & ISO 3104 – Validated for transparent petroleum liquids.
Precision Temperature Control: ±0.05°C – Stable at 40°C and 100°C for accurate viscosity indexing.
Single-Bath, Dual-Temperature Operation – Switch between 40°C and 100°C for viscosity index (VI) calculations.
Manual Timing with Digital Stopwatch – Ensures operator engagement while maintaining repeatability.
Clear Observation Window & LED Lighting – Enhances meniscus visibility during flow measurement.
Compact, Energy-Efficient Design – Ideal for space-constrained labs with low operating costs.

Trusted for Routine Lubricant and Fuel Analysis

Kinematic viscosity is essential for classifying engine oils (e.g., SAE grades), assessing fuel atomization, and monitoring lubricant degradation. The DKV-123 provides a dependable, entry-level solution for labs that require standards-compliant results without the complexity or cost of fully automated systems. It’s widely used in oil blending facilities, maintenance workshops, and academic settings for teaching fluid dynamics and lubrication principles.

Whether you’re verifying base oil quality or conducting routine in-service oil checks, the Kinematic Viscosity Tester DKV-123 delivers consistent, traceable results that support informed decisions and regulatory compliance.

Measure flow. Ensure quality. Trust every drop.