1. Bellows protective space design: The bellows are sealed in a confined space, unaffected by media, pressure, or temperature.

2. Extended, multi-wall, anti-torsion, long-life bellows, completely refreshing the service life of domestic bellows, up to 10,000 cycles.

3. The valve body adopts German film-coated sand casting technology, greatly improving the surface finish and mechanical properties of the valve body, reducing the occurrence of pores, sand holes, and cracks, and enhancing the tensile strength of the casting.

4. When the valve is closed, the conical sealing surface with a 'scraping effect' automatically removes surface impurities, ensuring reliable sealing of the valve disc and a longer service life.

5. Dual sealing design (bellows + packing), conforming to international sealing standards.

6. All bellows are 100% helium tested, and all valves are 100% standard tested, ensuring zero leakage.

7. For products above DN150, a special device (patented by our company) is installed to effectively prevent valve trembling, noise, and internal component damage during use, extending service life by over 150%.

8. Various valve disc designs can be provided according to working conditions, such as throttling type disc, globe check type disc, etc.