The Asco JB8214050C Solenoid Valve is a normally closed, pilot-operated gas shutoff valve designed with a double-disc construction for redundant sealing. Featuring visual position indication and a proof of closure switch, it ensures high-integrity shutoff in fuel gas systems. Ideal for large commercial burners and industrial heating systems requiring reliable safety interlocks.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1” NPT
- Flow Factor (Cv): 21
- Gas Capacity: 1,119,000 Btu/hr
- Operating Pressure Differential:
- Fuel Gas: 0 to 5 psi
- Maximum Fluid Temperature: 125°F (52°C)
- Body Material: Aluminum
- Seal Material: NBR
- Voltage Options:
- AC (60Hz): 24, 120, 240V
- AC (50Hz): 110, 220V
- Watt Rating:
- AC: 20 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat metal solenoid enclosure
- Type: Type 1 General Purpose Junction Box with two 7/8″ knockouts
Key Features and Functionality
- Double Disc Design: Ensures redundant shutoff for added safety.
- Visual Position Indication: Shows valve open or closed status.
- Proof of Closure Switch: 1 Amp contact for circuit feedback.
- Zero Differential Start: Operates from 0 psi line pressure.
- Fuel Gas Tested Body: Die-cast aluminum for strength and corrosion resistance.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8210 Series
- ASCO Junction Box Wiring Accessories
Industry Applications
- Commercial Combustion Systems: Shuts off gas to large burners.
- Industrial Heating Equipment: Used in boiler and oven control.
- Gas Distribution Networks: Safety valve with proof of closure feedback.
- Refinery Burner Trains: Visual and electrical assurance of shutdown.
- HVAC Systems: For secure, monitored fuel gas shutdown.
Compliance and Approvals
- UL Listed
- FM Approved
- CSA Certified
Installation and Operational Notes
- Install the valve with the solenoid in an upright vertical position.
- Do not install the valve in a location where it may be subject to excessive vibration.
- Pipe strain must be avoided — use wrenching only on the valve body, not on the solenoid.
- Apply pipe compound sparingly to male pipe threads only; avoid overtightening.
- Electrical conduit and grounding must comply with local and national codes.
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.