The geosynthetic material hydrostatic pressure tester (geosynthetic anti-seepage performance tester) is used to test non-woven composite geotextiles (one cloth and one film, two cloth and one film) produced by polyethylene and polyethylene chloride as the membrane material, which is used to measure the seepage rate (i.e., seepage velocity) and sample thickness of the specimen in a certain period of time under the specified hydraulic pressure difference, and the permeability coefficient can be calculated. 【Relevant Standards】

1. “Determination of permeability of composite geomembranes” GB/T17642-19982, “GB/T 17642-2008 Geosynthetics – Nonwovens composite geomembrane” 3, GB/T19979 “Anti-seepage performance of geosynthetic materials” 4, JTG E50-2006

【Scope of application】: The geosynthetic material hydrostatic pressure tester (geosynthetic anti-seepage performance tester) is used to test non-woven composite geotextiles (one cloth and one film, two cloth and one film) produced by polyethylene and polyethylene chloride as the membrane material, which is used to measure the seepage rate (i.e., seepage velocity) and sample thickness of the specimen in a certain period of time under the specified hydraulic pressure difference, and the permeability coefficient can be calculated. [Meet the standard]: 1. Determination of permeability of composite geomembrane GB/T17642–1998 2. GB/T 17642-2008 Geosynthetics – Nonwovens composite geomembrane 3. GB/T19979 “Anti-seepage performance of geosynthetics” 4、JTG E50-2006 【Instrument Characteristics】: 1. High-definition LCD display panel, digital display, no manual reading error. 2. The test plate is made of SUS304 stainless steel plate, which is corrosion-resistant, easy to clean, and beautiful and elegant. 3. One machine is multi-purpose, that is, the hydrostatic pressure resistance test and the permeability coefficient measurement test are met at the same time. 4. Surface treatment: using American DuPont powder, electrostatic painting process, cured at high temperature 200°C to ensure that it will not fade for a long time. 【Technical Parameters】: 1. Display: 7.8-inch true color touch display Measuring range: 0~4.0MPa accuracy 0.5% 2. Resolution: 0.01 MPa 3. Inner diameter of water collector: 200mm 4. Perforated plate penetration diameter: 3±0.05mm 5. Perforated plate penetration spacing: 6mm 6. Overall dimensions: 700×550×1650mm (W×D×H) 7. Power supply: AC220V, 100W 【Test Principle】:The pressure head on both sides of the specimen reaches a certain value, and the specimen breaks; The hydraulic pressure difference between the two sides is increased step by step, and it is maintained for a certain time, when the seepage rate increases rapidly, it indicates that the specimen has been damaged, that is, the hydrostatic pressure value is obtained. The machine can contain two functions, namely the determination of hydrostatic pressure resistance and the determination of permeability coefficient.