What type of valve is commonly used to control water flow in hydronic heating systems?

In hydronic heating systems, a globe valve is frequently used to control water flow due to its design and function. The globe valve features a movable disk or plug that adjusts the flow of water with precision. This capability allows for gradual changes in flow, making it ideal for balancing the system and ensuring that water reaches the necessary heating elements evenly.

Moreover, the globe valve is especially effective in applications where throttling is required, allowing for a smooth adjustment of flow rates. Its shape and internal structure provide better control compared to other types of valves, making it the preferred choice in hydronic systems where maintaining specific flow rates is crucial for efficient operation.

Other valves, like ball valves, are good for on-off applications but not ideal for flow regulation. Gate valves are used mainly for fully open or closed applications and do not offer fine control. Butterfly valves, while suitable for larger flow applications, also do not provide the same level of control as globe valves, especially in systems requiring precise adjustments. Therefore, the globe valve is recognized as the most effective option for managing water flow in hydronic heating setups.