(1) The fluid resistance is small, because the internal medium channel of the gate valve body is straight, and the medium does not change its flow direction when flowing through the gate valve, so the fluid resistance is small.
(2) The opening and closing moment is small, and the opening and closing is more labor-saving, because the direction of the gate movement is perpendicular to the direction of the medium flow when the gate valve is opened and closed. Compared with the stop valve, the opening and closing of the gate valve is more labor-saving.
(3) The flow direction of the medium is not restricted, and the medium can flow in any direction from both sides of the gate valve without disturbing the flow or reducing the pressure, and the purpose of use can be achieved. It is more suitable for pipelines where the flow direction of the medium may change.
(4) The length of the structure is shorter, because the gate of the gate valve is placed vertically in the valve body, and the valve disc of the stop valve is placed horizontally in the valve body, so the structure length is shorter than that of the stop valve.
(5) The sealing performance is good and the sealing surface is less eroded when fully opened.
(6) When fully open, the sealing surface is less eroded by the working medium than the stop valve.
(7) The shape is relatively simple, the casting process is good, and the application range is wide.
