Circular-Pipe Thermal Conductivity Tester
The GHR-3K measures thermal conductivity and heat transfer coefficient of circular-pipe specimens using a guarded measurement section, controlled heating, and computer data acquisition. It references GB 10296-2008 and ISO/DIS 8497 as test methods and uses a fixture designed for the pipe size.
- Model
- GHR-3K
- Category
- Thermal Conductivity & Diffusivity
Product Description
The GHR-3K uses computer-based data acquisition and analysis to determine thermal conductivity, heat transfer coefficient, surface thermal resistance, and other heat-transfer properties of circular-pipe specimens. The measurement section is flanked by two guarded sections with low-conductivity insulation; guard-section temperature control, computer control, and data processing are included.
Measurement-section heating uses adjustable constant-current power. The system supports stored, searchable reports and includes a test host, test software, data-acquisition system, and computer with a Chinese-language interface.
Ordering information: Specify the polymer designation, specimen dimensions, and fixture configuration when requesting a quotation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thermal conductivity range | 0.001–10 W/(m·K) |
| Temperature deviation | ±0.5 °C |
| Resolution | 0.001 W/(m·K) |
| Temperature difference from ambient | 35–200 °C |
| Specimen outer diameter | 20–60 mm |
| Specimen wall thickness | 3 mm |
| Specimen length | 500 mm |
| Measurement-section length | 200 mm |
| Guard-section length | 150 mm each |
| Guard-section insulation | Low-conductivity thermal insulation |
| Measurement-section adjustable heating power | 0–500 W |
| Heating method | Constant-current heating |
| Individual pipe heating-wire power | 1.5 kW |
| Temperature signal acquisition | Multichannel temperature-signal acquisition card |
| Data-acquisition A/D conversion | 16-bit |
| Guard-section temperature control | Provided |
| Control software | Chinese-language control software with computer control, data analysis, report storage, and report query |
| Referenced methods | GB 10296-2008; ISO/DIS 8497 |
| Test configuration | Test apparatus designed for the pipe size; specify the fixture configuration when requesting a quotation |
| Ambient temperature-control accuracy | ±1 °C |
| Referenced standards | GB 10296-2008 |
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