ASCO 8214G251-24VDC Solenoid Valve

The ASCO 8214G251-24VDC is a 1-inch, 2-way, normally closed gas shutoff solenoid valve with a 24 VDC coil, from ASCO's 8214 series of fuel gas shutoff valves rated for 0 to 5 psi service. It is an internal pilot operated design with an aluminum body and a watertight coil enclosure: energize the coil and a small pilot passage opens so line pressure helps lift the main seat; drop the power and the valve closes automatically and cuts off the gas. That fail-safe action is why this style of valve sits ahead of burners, boilers, furnaces, and gas-fired process equipment as the main safety shutoff.

Coil voltage is the first thing to match on this valve family. The 8214G251-24VDC (also written 8214G251-DC24) has a DC coil. The same 8214G251 body is sold with other coils under separate numbers: 8214G251 (120 VAC), 8214G251-24V (24 VAC) and 8214G251-12VDC (12 VDC). A coil on the wrong voltage will not pull in — or will burn out — so check the label on your existing valve. Size matters too: the 8214G251 is the 1-inch body, while 8214G236C is the 3/4-inch and 8214G261 the 1-1/4-inch valve in the same series.

Installation notes a veteran tech will appreciate: shut off the gas and the electrical supply first, follow the flow arrow cast into the body, and use approved thread sealant sparingly. The coil label on this valve carries a caution to not overtighten pipe connections and to take extra care when tape, paste, or spray lubricant is used, because reduced friction makes it easy to overtorque — apply wrenches close to the connection. The body has plugged gauge taps on the side for checking pressure, and every joint should be leak-tested with an approved solution before the system goes back in service.

Key Benefits

• Fail-Safe Shutoff: Normally closed operation shuts the gas off automatically when power is lost or the control circuit opens.
• 24 VDC Coil: Made for DC control circuits, so it works with systems already running 24 VDC without extra conversion hardware.
• 1-Inch Body, 0–5 PSI: A 1-inch port with a 0 to 5 psi rating suits the low-pressure natural gas and propane gas trains this series is used on.
• ASCO Build Quality: ASCO is a long-standing name in solenoid valves; the aluminum body and watertight enclosure are built for the boiler-room environment.

Common Questions

• What voltage is this coil? 24 VDC. For 24 VAC you need 8214G251-24V; for 120 VAC, 8214G251; for 12 VDC, 8214G251-12VDC.
• Is it normally open or normally closed? Normally closed — the valve opens only while the coil is energized and closes when power is removed.
• What if I need a different pipe size? The same series comes in other sizes, including 8214G236C (3/4-inch) and 8214G261 (1-1/4-inch). The 8214G251 family is the 1-inch valve.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.