Honeywell Thermal Solutions FSG V8944B1019 Diaphragm Gas Valve

The Diaphragm Gas Valve from Honeywell Thermal Solutions, model FSG V8944B1019, delivers precise, reliable control for commercial heating systems. This 1-inch nominal, solenoid-operated valve features two-stage, slow-opening operation for smooth fuel delivery in atmospheric boilers, commercial makeup air units, rooftop heaters, and duct furnaces.

Designed for natural gas with a 1/2 psi pressure rating, it runs on 24 VAC at 60 Hz (0.516 A; 12.4 VA) and includes an automated position indicator for clear status feedback. The valve body is die-cast aluminum, with end connections that are threaded x threaded, and a compact 6-inch end-to-end distance. Mounting position is upright (horizontal), and the unit offers dependable timing: 3–25 seconds open and 2 seconds close.

• End connections: threaded x threaded
• Die-cast aluminum body for durability
• Automated position indicator for quick status checks
• Voltage: 24 VAC, 60 Hz; current: 0.516 A; power: 12.4 VA
• Open timing: 3–25 seconds; close timing: 2 seconds
• Three 30-inch lead wires with 1/4-inch spade terminals
• Operating temperature: -40 to 150 °F
• Pressure regulator set points: 0.8 to 3.5 Inch WC
• UL and CSA listed for safety compliance