Honeywell Thermal Solutions FSG V8943A1012 Diaphragm Gas Valve

The Diaphragm Gas Valve from Honeywell Thermal Solutions, model FSG V8943A1012, delivers reliable ON/OFF control for commercial heating and boiler applications. This normally closed (NC) valve features rapid opening, straight-through flow, and a non-offset design, all managed by a robust solenoid actuator for fast, repeatable valve seating.

Manufactured with a die-cast aluminum body and a 1 inch nominal size, it uses threaded end connections and an end-to-end distance of 6 inches. The automated position indicator provides clear status feedback, while upright mounting supports easy field service. Temperature ranges from -40 to 150°F, and it handles pressures up to 1/2 psi.

Electrical and compatibility details include 24V AC, 60 Hz operation, 0.363 A current draw, and 8 VA of power, with valve timing of 6 seconds open and 3 seconds close. This valve suits atmospheric boilers, commercial water makeup air, rooftop heaters, and duct furnaces, and carries UL/CSA certification for safety and reliability. Fuel options cover liquid propane and natural gas.

• Type: ON/OFF, NC, rapid opening
• Nominal size: 1 inch
• End connections: Threaded x Threaded
• Body: Die-cast aluminum
• Electrical: 24V AC, 60 Hz; 0.363 A; 8 VA
• Timing: 6 s open / 3 s close
• Temperature/Pressure: -40 to 150°F; 1/2 psi
• Mounting: Upright
• Applications: Atmospheric boiler, rooftop heater, duct furnace