What is the primary function of a balance valve in fluid systems?

The primary function of a balance valve in fluid systems is to regulate flow and maintain pressure across the system. Balance valves help prevent pressure imbalances that can lead to issues such as inefficient system performance or uneven distribution of flow in a piping system. By adjusting the flow rate and ensuring that the system pressure is stable, balance valves play a crucial role in optimizing the performance of heating, cooling, and plumbing systems. This regulation enables a more efficient operation, helping to save energy and maintain comfort levels in buildings and various industrial applications.

The other functions, such as completely stopping fluid flow, measuring fluid temperature, or creating a vacuum in the system, do not align with the intended purpose of a balance valve. These alternatives focus on different mechanisms and objectives within fluid system management, whereas the balance valve's specific role is centered on flow regulation and pressure consistency.