DIN标准波纹管闸阀

properties:
1. Bellows sealed gate valve, its key components are bellows, the lower end is welded with the valve stem and components by automatic seam welding, and the upper end is automatically seamed with the connecting plate, forming a metal barrier between the flowing medium and the atmosphere to ensure the valve Rod zero leakage.
2. Bellows plus packing double seal design, with double insurance, making the seal at the valve stem safer and more reliable, and in line with international sealing standards.
3. 100% of all bellows have passed the fugitive test according to the ISO15848 Class A standard when leaving the factory; all bellows components and valves have passed the standard A class test 100% to ensure zero leakage.
4. There is a grease joint on the valve cover, which can directly lubricate the valve stem, nut and bushing, instead of adding lubricating oil to the thread in the traditional way
5. The retractable wheel is ergonomically designed, and the impact type can be customized for DN100 and above, with longer service life and easier and more convenient operation.