How to distinguish the geotextile effective pore size dry and wet sieve tester? -Huaqiang Electronic Network

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How to distinguish between the geotextile effective pore size dry and wet sieve tester?

When purchasing an instrument, it's essential to ensure it's suitable for the specific test you need. There are two main types of geotextile effective pore size measuring instruments: dry sieve method and wet sieve method. Many people confuse these two devices. Today, Hebei Sansi will explain the differences between them to help you make a more informed decision.

First, let’s look at the geotextile effective pore dry sieve tester — TSY-3. This instrument uses the dry sieve principle to determine the characteristic pore diameter of single-layer geotextiles and related products. It’s suitable for all types of geotextile materials and complies with standards such as GB/T 14799, JTGE50-2006, and SL235-2012.

The technical parameters of the TSY-3 include a sieve diameter of 200mm, a sieve stack height of 400mm, a sieve seat amplitude of 8mm, and a vibration frequency of 221 times per minute. The power supply is 380V, and the motor consumes 0.37 kW. The dimensions are 640 × 430 × 800 mm, and the total weight is 50 kg. Installation is straightforward, and it can be placed directly on a cement floor or mounted on a foundation. After installation, the motor should rotate in the direction indicated by the arrow, producing a vibrating motion. If not, the wiring may need adjustment.

Next, we'll explore the geotextile effective pore wet sieve tester — TSY-2. This device operates based on the wet sieve method, where water is sprayed onto the sample and graded granular material while it vibrates. The effective pore size is determined by the particles that pass through the geotextile. This method is ideal for testing various types of geotextiles and follows the requirements of GB/T 17634-1998.

The TSY-2 has an inner diameter of 176mm, a vibration frequency of 50Hz, and a vibration amplitude of 1.5mm. It features a timer with two timing modes, allowing settings from 0–99.99 seconds or 0–99 minutes and 59 seconds. The motor runs at 2800 rpm with 550W of power, and the machine requires 380V of electricity. Its dimensions are 680 × 420 × 750 mm, and it weighs 50 kg.

To operate the TSY-2, first place the sample on the support grid, spread the granular material evenly, and set the vibration time according to the standard. Then, connect the water supply, cover the sample, and start the test. During the process, particles that pass through the sample are collected, and after the test is complete, the results are analyzed according to the standard. Finally, clean the equipment and turn off the power.

Whether you choose the dry or wet sieve method depends on your specific testing needs. Understanding the differences between these instruments can help you select the right one for your application.