What can happen if an orifice is drilled off center?

When an orifice is drilled off-center, it disrupts the intended flow dynamics of the gas. In a properly functioning system, gas should flow evenly through the orifice in a uniform manner. However, when the orifice is not centered, it causes the gas to flow unevenly, creating turbulence as it attempts to exit.

This turbulence can lead to the gas mixture bouncing off the sides of the venturi, which is the converging section of a gas burner. The venturi’s design is meant to facilitate smooth and efficient gas flow, but an off-center orifice produces irregular flow patterns. As the gas mixture collides with the venturi walls, it may result in inefficient combustion and unstable flame characteristics.

Overall, the misalignment does not enhance gas flow or flame strength; rather, it can cause operational issues within the equipment, potentially leading to poor performance and safety concerns.