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Gas Outlet
(To Oven Burner)
No Current Flow -
Valve Is Closed
Gas Inlet
(From Regulator)
120 Volt
Supply Terminal
Safety Valve
Bimetal & Heater Coil
Figure 4-16
Gas is available at the safety valve at all times, but can be shut off by a manual shutoff valve on
the regulator (see Figure 4-17).
Manual Gas
Shutoff Valve
Safety
Valve
Pressure
Regulator
Figure 4-17
The oven uses a
Single Safety Valve
that is bimetal-operated (see Figure 4-16). It has one gas
inlet and one gas outlet, for the combination Bake and Broil burner. The safety valve uses an
electrically-operated device at the gas outlet to control the gas flow to the oven burner. The device
consists of an electric heater coil wrapped around a bimetal strip. One end of the bimetal is riveted
to the plate of the valve. The other end has a rubber seat attached to it that covers the gas outlet.
At room temperature, the spring force of the bimetal presses the rubber seat against the gas outlet.