VALVE STEM AND VALVE CORE ASSEMBLY AND VALVE COMPRISING ASSEMBLY

摘要

A valve stem and a valve core assembly and a valve comprising the assembly. The valve core (11) sleeves the valve stem (10), and an adjusting device (12) is further disposed on the valve stem (10). An elastic element (13) is disposed between the adjusting device (12) and the valve core (11). A gap is disposed among the valve core (11), the valve stem (10) and the adjusting device (12). The valve core (11) can move with respect to the valve stem (10), and therefore the valve has a good closing performance.