Porosity Tester – Gurley Type
Model KPT-400 | Air Permeability Tester for Paper, Films & Speciality Substrates
The Katpot Systems Porosity Tester (Model KPT 400) is a high-precision instrument designed to measure the air permeability and porosity of paper, textiles, filters, laminates, packaging substrates, and other porous materials.
Porosity testing provides essential data on how easily air or fluids pass through a material, which helps evaluate its density, structure, uniformity, strength, and processing quality.
This tester is widely used in printing, packaging, filtration, textile, and material research industries where controlling air flow characteristics is critical.
Designed according to ASTM D726 and ISO 5636-5 standards, it ensures accurate, repeatable, and traceable porosity measurements.
Ideal for QA labs, R&D departments, paper mills, packaging units, and filter manufacturers.
Advanced Features
- Measures air permeability and porosity accurately and repeatably.
- Adjustable pressure settings allow flexible test conditions.
- Digital indicator provides precise airflow rate data.
- Rugged construction with high-accuracy air cylinder assembly.
- Supports testing for paper, board, textiles, laminates, and filter media.
- Complies with ASTM & ISO porosity standards.
- Easy-to-use design suitable for both QC and R&D laboratories.
- Helps identify coating uniformity, pore size behavior, and structural stability.
Product Importance
- Determines air flow resistance, which indicates material quality and structural consistency.
- Helps evaluate coating quality, surface treatment, and material suitability for specific applications.
- Essential for ensuring printability, ink absorption, and drying behavior in paper & packaging.
- Ensures proper filtration efficiency, pore size consistency, and breathability in filter and textile materials.
- Assists in optimizing material formulation, coating thickness, and processing parameters.
- Helps identify defects such as pinholes, uneven coating, over-compression, or material instability.
- Ensures compliance with international standards and customer specifications.
Technical Specifications
| Model No | KPT-400 |
|---|---|
| Type | Gurley / Air Permeability |
| Measurement Range | 0.1 – 1000 mL/min |
| Pressure Range | 0 – 20 kPa (Adjustable) |
| Sample Area | Standard 10 cm² |
| Display | Digital airflow reading console: Digital airflow reading console |
| Operation Mode | Manual / Semi-Automatic (configuration dependent) |
| Construction | High-precision air cylinder with controlled chamber |
| Compliance | ASTM D726 / ISO 5636-5 |
| Power Supply | 230 V AC ±10%, 50 Hz |
