Which gas valve type is known for less likelihood of seizing up over time?

Ball valves are recognized for having a lower likelihood of seizing up over time compared to other types of valves. This characteristic is due to the design of the ball valve, which utilizes a spherical disc (the ball) to control the flow of gas. The ball's surface is smooth, and as it rotates, it provides a tight seal against the valve seat when closed, while minimizing friction with other components.

This design reduces the wear and tear typically associated with the movement of moving parts in other valve types, making ball valves more reliable in environments where maintenance may be infrequent. The simplicity of the ball valve's mechanism means that it can open and close with significantly less effort, further contributing to less risk of seizing.

In contrast, compression valves, tapered plug valves, and needle valves may have more moving parts and complex mechanisms that can lead to increased wear and potential for seizing, especially if not regularly maintained or lubricated properly. Therefore, the robust and straightforward design of ball valves makes them the preferred choice for ensuring long-lasting functionality with minimal maintenance concerns.