The thermostat then bleeds this air to modulate the branch line pressure

Drop-In Installation: Designed with standard mounting footprints to reduce labor time during furnace limit switch replacement

Pressure Resilience: UL listed with a 650 psig maximum working pressure

67 amps of steady-state current

this two-position valve body provides high-capacity flow with minimal pressure drop

Robertshaw 720-400 Valve 30067439-890 The thermostat then bleeds thisThe Robertshaw 720 400 Valve is a six function gas valve engineered for professional HVACR applications requiring high capacity performance up to 150,000 BTU. This constant pilot control integrates a manual valve, safety shut off magnet, dual automatic valves, main gas regulator, and pilot adjustment into a single, compact body. Designed for maximum field flexibility, the 1 2x3 4" 24V Combo Gas Valve features a 1 2" NPT inlet and a 3 4" NPT outlet,