1. The bellows-sealed stop valve, whose key component is the metal bellows, is
automatically rolled welded with the valve stem assembly at the lower end and the connecting plate at the upper end, forming a
metal barrier between the fluid medium and the atmosphere to ensure zero leakage of the valve stem.
2. The valve disc adopts a conical design, and the sealing surface and the medium are
streamlined, with better sealing performance and longer service life.
3. The double sealing design (bellows + packing) will prevent leakage of the valve stem
packing if the bellows fails, and it meets international sealing standards.
4. The valve cover is equipped with a grease joint, which can directly lubricate the
valve stem, nut and sleeve, unlike the traditional method of only adding lubricating oil to the thread.
5. The ergonomically designed handwheel has a longer service life, easy and convenient
operation, and is safer
