The stainless steel construction of the burner tubes provides superior resistance to thermal stress and corrosion during long heating cycles

While the spring itself is omnidirectional

immediately breaking the electrical circuit to the gas valve if temperatures exceed the safe operating threshold

is a critical HVAC replacement part designed for precise staging in residential heating and industrial process applications

never leave a limit switch bypassed during operation as it is the primary safety against a cracked heat exchanger

Robertshaw 710-502 Gas Valve 30067439-890 The stainless steel construction ofThe Robertshaw 710 502 Gas Valve is an industry standard millivolt gas valve specifically engineered for low capacity heating applications where space is at a premium. This unit features a 1 2 inch inlet and outlet and is factory calibrated for 3. 5 inch WC (Water Column) for natural gas operation, though it is compatible with liquid propane when utilizing the correct conversion components. As a "snap acting" control, it provides reliable millivolt