What must groove connections of fittings and valves ensure?

Groove connections of fittings and valves must ensure that they are dimensionally compatible with the couplings. This is essential because the proper fit between the grooves and the couplings allows for secure connections that can withstand the necessary pressure and flow of the system. A mismatch in dimensions could lead to leaks, structural failures, or inefficiencies in the system's operation. Proper dimensional compatibility ensures that the components can properly engage and maintain their integrity under various conditions, including temperature changes and operational stresses.

While high tensile strength, flexibility, and resistance to corrosion are important attributes in the broader context of materials used in these fittings and valves, the fundamental requirement for groove connections focuses on the accuracy of dimensions. This ensures overall reliability and safety in the installation and operation of sprinkler systems.