Honeywell Thermal Solutions FSG V88A1709 Diaphragm Gas Valve

Honeywell Thermal Solutions FSG V88A1709 Diaphragm Gas Valve is a rugged, solenoid-operated diaphragm valve designed for reliable control in commercial heating systems. This NC (normally closed) unit features slow opening and fast closing, straight-through flow, and non-offset geometry for safe, precise gas management with liquid propane or natural gas.

With a 2-inch nominal size and threaded end connections, it fits standard piping, and the end-to-end distance is 3-11/16 inches for easy installation. The die-cast aluminum body tolerates demanding environments, with a temperature range of 32–125°F and a pressure rating of 1 psi. Designed for atmospheric boilers and commercial water or rooftop heaters, it operates at 24 V AC (60 Hz), draws 0.62 A, and consumes 9 W. Opening time is 5 seconds, with closing in 2 seconds to ensure rapid shutoff when needed.

• Nominal size: 2 in
• End connections: Threaded x Threaded
• Valve type: NC, Slow Opening / Fast Closing
• Material: Die-cast aluminum
• Fuel: Liquid propane, natural gas
• Electrical: 24 V AC, 60 Hz; 0.62 A; 9 W
• Mounting: Upright (horizontal)
• Lead wires: 6 in
• Standards: UL, CSA
• Dimensions: 9-5/16 in W × 9-1/2 in D × 9-3/16 in H