DJF-7 Waterproof Roll Seam Impermeability Meter

The DJF-7 waterproofing membrane joint impermeability tester is developed by Cangzhou Fengyi Testing Instrument Co., Ltd. (hereinafter referred to as Fengyi) in accordance with the national standard GB45320-2025 "Safety and General Technical Specification for Building Waterproofing Membrane", which has added the requirement for "lap joint impermeability" of waterproofing membrane and the national standard GB55030-2022《 The production of the "General Specification for Waterproofing of Buildings and Municipal Engineering" will cover all overlapping processes such as hot melt, welding, self-adhesive, adhesive, and tape. After the specification is officially implemented, the "impermeability of overlapping joints" will become a mandatory item for the quality acceptance of waterproofing membranes. The importance of waterproofing: The construction of building waterproofing engineering is an important component of building construction technology, and it is also a sub project construction to ensure that buildings and structures are not corroded and that internal spaces are not endangered. Through the reasonable application of waterproofing materials, the occurrence of water immersion and leakage can be prevented, thereby ensuring the functional use of buildings and extending their service life. At the same time, it meets the impermeability test requirements of overlapping joints in the T/CWA 302-2023 building waterproofing material engineering requirements test method of the Building Waterproofing Association.

Technical parameters of waterproof membrane lap joint impermeability tester

1. Power supply: 220V 50Hz 2. Test pressure: 0-0.6Mpa

3. Pressure sensor accuracy: Level 1

4. Number of permeable plates: Three stations

5. Inner diameter of permeable disc: 250mm

6. Test piece size: 300 * 200mm. After overlapping, the size is 300 * 300

Features of the machine:

1. The machine is designed to be reasonable and easy to operate,

2. Adopting a 7-inch touch screen, with a simple layout and large button fonts, making it less prone to accidental operation

3. High precision pressure sensor, accurate data, minimum reading of 0.01Mpa

4. Stainless steel ball valve, easy to open and close, has a longer service life compared to needle valves and is less prone to water leakage

5. The test speed can be pressurized at a rate of about 0.05Mpa/min,

6. Front door design, suitable for those who have space limitations requirements,

7. Using a water pump for pressurization, for lap joint testing, it has a longer service life than the air pump

8. The compression method is slightly different from other methods, as it involves tightening the nut, resulting in extremely low after-sales costs for customers in the later stage