Valve type and principle-Globe valve

2. Globe valve

The globe valve is one of the most widely used valves,due to the small friction between the sealing surfaces during the opening and closing process, it is more durable, easy to manufacture, easy to maintain, and suitable for medium and low pressure and high pressure.

Closing principle: relying on the pressure of the valve bar, the sealing surface of the valve disc and the sealing surface of the valve seat are closely fitted to prevent the circulation of the medium.

The globe valve only allows the medium to flow in one direction, and has directionality during installation.Its structural length is greater than the gate valve, and the fluid resistance is large. When it is operated for a long time, the sealing reliability is not strong.

Classification：Straight-through, right-angle and DC type oblique globe valves.