Valves are essential components of fluid systems, and different types of valves are available in the market. Two widely used valves are ball and stop valves, but many people often need clarification. This blog post will discuss the differences between ball and stop-valves to help you understand which is best suited for your application.
Difference Between Ball Valve and Stop Valve
Valve Structure:
The key difference between ball valves and stop valves is their structure. Ball valves consist of a ball-shaped disc that rotates around its axis to control fluid flow in a pipe. In contrast, stop valves are of the gate or globe type and operate by sliding a gate or disc up and down in line with the flow, which restricts or stops the flow when fully closed.
Flow Capacity:
Ball valves offer better flow control than stop valves, as the ball only needs to rotate 90 degrees to fully open or close. In contrast, the gate in a stop valve needs to travel a more considerable distance to close fully, which means it offers less flow control.
Pressure Rating:
Ball valves can generally handle higher pressure than stop valves due to their compact design. Ball valves can operate at up to 1000 psi pressures, while stop valves have pressure ratings from 150 to 300 psi.
Installation:
Both ball valves and stop valves are easy to install. However, ball valves come in various sizes and shapes that can fit most plumbing applications. On the other hand, stop valves come in two types – rising and non-rising stem, making them more challenging to install.
Maintenance:
Ball and stop valves require regular maintenance to avoid leaks and ensure proper functioning. However, ball valves are easier to maintain than stop valves as they have fewer moving parts and a more straightforward design.
Conclusion:
In conclusion, ball and stop valves are suitable for various applications, depending on your needs. Ball valves offer higher flow capacity, handle higher pressure, and are easier to install and maintain. On the other hand, stop valves are better for controlling low flow rates and are more suitable for certain applications, such as gas lines. Understanding the differences between the two types of valves can help you choose the right one for your system and ensure it functions correctly for years to come.
