A Southbend Range 1179413 Orifice Spud meters natural gas flow for accurate heating control and steady performance.
The orifice spud meters the flow of natural gas to the burner so the equipment receives the correct fuel volume for proper combustion and heat output. Its precise #37 drill size and gas-specific design matter because they maintain accurate pressure-to-flow control, which supports efficient burner performance and consistent flame characteristics.
The orifice spud may need replacement if the burner shows weak, uneven or unstable flames, delayed ignition or inconsistent heating performance. Physical signs can include clogging, corrosion or thread damage and environmental signs may include grease buildup, moisture exposure or residue that could restrict gas flow or affect burner operation.
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