Differences Between Gate, Globe and Check Valves

The main difference between gate, globe and check valves is the application and operation of each valve:

1) Gate valve: it is the most commonly used valve in pipeline system. It is a general service valve, mainly used for switching, non throttling applications. Fully open or fully closed, not used to regulate flow. A partially open gate valve will accelerate corrosion caused by merchandise in the pipe and will damage the seat in a short time. Gate valves are an economical and effective way to provide high quality seal valves with high temperature tolerances.
2) Globe valve: globe valve is almost exclusively used for throttling or flow regulation. In addition, the globe valve only works in one direction. To help you remember this, there is an arrow on the side of each stop valve to indicate the direction of flow. By simply rotating the handwheel, the rate of merchandise flowing through the valve can be adjusted to any desired level.

3) Check valves: unlike globe and gate valves, check valves do not operate at all. They are used to prevent backflow in the circuit, making it one of the most important components of any system. Check valves work automatically, most of them are not controlled by people or any external control; As a result, most do not have any valve handle or stem. They are two port valves, meaning they have two openings in the body, one for fluid entry and one for fluid exit, and are used in a variety of applications. Although they come in a variety of sizes and costs, check valves are usually very small, simple or inexpensive.