How to Understand Gas Oven Pressure Regulators

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The pressure regulator is the heart of a gas oven system. The regulator manages both gas flow for efficient operation and serves as a safety mechanism if the gas line, tank or oven develops a leak or other problem. A pressure regulator's main function is to act as a bottleneck for controlling the pressure of gas flowing through the system. This lets you cook with the oven using flames that are consistent and manageable.

  • Turn on any of the stove burners by pushing in and twisting a control knob on the front panel to ignite the flames on the burner. The valve inside the burner adjusts as you turn the control knob to allow more gas through the pipe connected to the burner, making the flames rise or fall.

  • Turn on a second burner. This increases the oven's demand for gas, causing the pressure regulator to open wider. By increasing the gas flow through the regulator, the flames on the first burner remain at a constant level when a second burner is turned on.

  • Shut off both burners.

  • Turn the pressure regulator built into the gas line for your oven to inspect the PSI (Pounds per Square Inch) rating, for example. This rating is the maximum gas pressure the regulator can control. if the pressure from the gas tank rises higher than the rating, the regulator's internal valve closes automatically to prevent excessive gas discharge downstream to the oven. This principal is similar to squeezing the neck of an inflated balloon between your thumb and index finger.

  • Rotate the regulator to locate the pinhole in the side. This is the outlet for the pressure relief valve. If gas pressure from the fuel tank rises higher than the regulator's capacity, perhaps due to a temperature increase, the regulator's pressure relief valve opens slightly to allow some gas to escape, lowering the internal tank pressure to a safe level.

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