The Whirlpool WPW10128445 is an essential device for your gas range's surface burner. The orifice, a tiny nozzle that regulates the gas flow to the burner, is safely encased in a tiny metal housing. The flame intensity and gas pressure are determined by the size of the aperture. Gaze passes through the gas line and into the orifice holder when a burner knob is turned on. By limiting the flow, the orifice generates pressure that propels the gas out in a regulated stream. After mixing with air, this controlled gas produces a stable and effective burner flame.Many burner problems can be attributed to a malfunctioning orifice holder. An obstruction in the gas flow caused by a clogged or damaged holder might result in inconsistent flames.