The most obvious advantages of globe valve are:
(l) In the process of opening and closing, the friction between the disc and the sealing surface of the valve body is smaller than that of the gate valve, so it is wear-resistant.
(2) The opening height is generally only 1/4 of the diameter of the valve seat passage, so it is much smaller than the gate valve.
(3) Usually there is only one sealing surface on the valve body and disc, so the manufacturing process is better and it is easy to maintain. However, the shortcomings of the globe valve cannot be ignored.
The main disadvantage is that the coefficient of flow resistance is relatively large, which causes pressure loss, especially in hydraulic devices, this pressure loss is particularly obvious.
