This machine is manufactured in accordance with the national standard GB/T4744-2013. It is suitable for measuring the hydrostatic pressure resistance of fabrics, and can also be used to determine the hydrostatic pressure resistance of other coating materials. A is a manual type, and B is an electric type. Structure 1. The instrument uses a constant-speed pressurizing device (electric type is pressurized by a metering pump) to pressurize the sample, which is not limited by the space of the test site 2. The instrument has two pressure gauges, low pressure and high pressure, to display high and low pressures respectively 3. Use pressurized medium: water or non-corrosive liquid 4. The special sample holder ensures that the sample is firmly clamped Technical index 1. Pressure range and measurement accuracy 0～0.04Mpa (4mH2O) (31.4kg) Accuracy: ±0.1Kpa 0～0.6Mpa (60mH2O/) (471 kg) accuracy: ±5Kpa 2. Boosting rate: 1KPa/min-100Kpa/min can be adjusted arbitrarily (with dial instructions, accurate and intuitive) 3. Sample size: Φ125mm, pressure area: Φ100mm circle 4. Dosage of pressurized medium: 500ml 5. Power supply (electric): AC220V, 50Hz, 100W