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The 700-513 does not have a built-in pressure regulator
the B211B maintains an equal percentage flow characteristic
'NoPP' signifies that there is no pre-purge period
Does the V46AA-56 require an external power source
Maxitrol M511B-3/4 Valve 30067439-890 The 700-513 does not haveThe Maxitrol M511B 3 4 is an industrial grade modulating gas valve specifically engineered for direct fired burners operating under negative pressure. Maintaining a 1 2 PSI maximum inlet pressure, this 3 4" NPT valve is the essential direct replacement for Maxitrol M511 3 4 units. Unlike standard regulators, it utilizes a voice coil actuator to provide instantaneous response to signal changes from Maxitrol Selectra Series 14 and Series 44 electronic