Globe valve, also known as cut-off valve, is the most widely used
valve. The reason why it is popular is that the friction between
the sealing surfaces is small during the opening and closing
process, it is more durable, the opening height is not large, it is
easy to manufacture, and it is easy to maintain. Convenient, not
only for medium and low pressure, but also for high pressure. The
closing principle of the globe valve is to rely on the pressure of
the valve stem to make the sealing surface of the valve disc and
the sealing surface of the valve seat closely fit to prevent the
flow of the medium.