H118AH142F1 ASCO 1½-inch, 120V AC, normally closed W/Aux SW

The ASCO H118AH142F1 is a 1½-inch, 120V AC, normally closed gas shutoff valve with an integrated auxiliary switch, designed for industrial and commercial burner systems. It’s part of ASCO’s rugged H118 series, known for reliable fuel gas control in demanding environments like furnaces, dryers, and heaters.

🔧 Key Specs:

• Valve Type: Normally closed, electrohydraulic shutoff

• Pipe Size: 1½" NPT

• Voltage: 120V AC

• Flow Capacity: 35 Cv

• Opening Time: 8–20 seconds

• Closing Time: ≤ 1 second (spring-loaded fail-safe)

• Auxiliary Switch: SPDT, actuates at full open

• Body Material: Cast iron

• Temperature Range: -40°F to 150°F

• Mounting: Multi-poise (any position)

• Approvals: UL, FM, CSA certified for fuel gas shutoff

🛠️ Applications:

Ideal for combustion systems requiring proof-of-closure, slow-opening, and fast-closing gas control. It handles natural gas, LP, and scrubbed digester gases, making it a go-to for high-reliability installations.