What is the minimum connection size for a control manifold?

The minimum connection size for a control manifold is 3/4". This size is typically specified to ensure adequate flow and pressure levels within a system, particularly in plumbing and HVAC applications. A control manifold is responsible for distributing fluids, such as water or gas, and must maintain appropriate pressure and flow rates to function effectively.

Using a connection that is too small can restrict flow and lead to inefficiencies or malfunctions within the system. The 3/4" connection size strikes a balance between minimizing pressure loss and ensuring that the system can handle the required flow rates without risking damage or performance issues. This standard reflects industry practices that prioritize safety and reliability in fluid distribution systems, making the 3/4" size a common requirement in many codes and applications.