Guarded Heat Flow Meter
Get a quote：
Web: qinsun-lab.com
Email：serving@qinsun-lab。com
The Guarded Heat Flow Meter is a precision instrument designed to measure the thermal resistance and thermal conductivity of solids, including metals, polymers, composites, and pastes, over a temperature range of -20°C to 310°C. By replacing traditional pneumatic motion with advanced motorized control, the system achieves automatic adjustment of sample thickness, applied pressure, and force. This instrument provides highly accurate steady-state measurements, enabling precise evaluation of materials’ thermal performance and aiding in quality control, research, and energy efficiency assessment.
Application
Measurement of thermal conductivity and thermal resistance of metals, polymers, composites, and pastes.
Characterization of thermal performance for materials in aerospace, electronics, automotive, and industrial applications.
Determination of steady-state heat transfer for heterogeneous or non-uniform materials.
Applicable for quality control, material research, R&D, and certification testing.
Standards
ASTM E1530: Standard Test Method for Evaluating Thermal Resistance of Materials Using a Guarded Heat Flow Meter.
ASTM E1560-19: Standard Test Method for Thermal Conductivity Measurements with Guarded Heat Flow Meter.
Parameters
| Item | Specification / Description |
|---|---|
| Applicable Materials | Metals, Polymers, Composites, Pastes |
| Sensor Type | Thermocouples (x6) |
| Measurement Direction | Through-thickness |
| Thermal Conductivity Range | 0.1 – 100 W/m·K * |
| Sample Diameter | 50 – 50.8 mm |
| Sample Thickness | Up to 25 mm (0.1 mm optional for soft materials) |
| Test Time | 40 – 60 minutes |
| Accuracy | 3% (k) |
| Repeatability | 1 – 2% (k) |
| Temperature Range | -20 to 310 °C ** |
| Pressure | Automatic, up to 379 kPa (55 psi) |
| Notes | * Materials with conductivity >60 W/m·K must have thickness ≥12.5 mm ** Each system includes a refrigeration circulator |
Send product request
Other supplier products
 |
Bean Bag Snag Tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Bean Bag Snag Tester, to determine the snagging and picking resistance of knitted ... |
 |
Burning Manikin System | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The Burning Manikin System is primarily applied in the following areas: Fire Envi... |
 |
Suture Needle Elasticity and Toughness Tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Applications Quality Control: In the production process of medical devices, it is... |
 |
Automatic Long Filament Curl Shrinkage Tester ASTM D6774-22 | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The Automatic Long Filament Curl Shrinkage Tester is designed to measure boiling w... |
 |
EN sole bending tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The EN Sole Bending Tester is designed to assess the bending resistance and zigzag... |
Same products
 |
PanEVAP & MVR system | Seller: Yangzhou Panstar Heat Exchanger Equipment Co., Ltd | A multiple-effect evaporator is a device that efficiently uses steam heat to evaporate water. Wat... |
 |
PanGAP wide gap welded plate heat exchanger | Seller: Yangzhou Panstar Heat Exchanger Equipment Co., Ltd | PanGAP wide gap welded plate heat exchangerconsists of a welded plate pack with different channel... |
 |
PanBloc welded plate heat exchanger | Seller: Yangzhou Panstar Heat Exchanger Equipment Co., Ltd | PanBloc welded plate heat exchangeris compact and efficient, although fully welded, is totally ac... |
 |
PanBox welded plate heat exchanger | Seller: Yangzhou Panstar Heat Exchanger Equipment Co., Ltd | PanBox welded plate heat exchangerconsists of a laser welded plate pack with optimized corrugated... |
 |
PanPHE gasketed plate heat exchangers | Seller: Yangzhou Panstar Heat Exchanger Equipment Co., Ltd | PanPHE gasketed plate heat exchangersare designed with easy access for regular servicing and for ... |
