ASCO JB821453CSA Valve

The ASCO JB821453CSA Valve is a 2-way normally open solenoid valve engineered for critical fuel gas vent valve applications in commercial and industrial burner systems. Featuring a rugged aluminum body and high-performance NBR seals (Buna-N), this 1-inch NPT unit is designed to handle high-capacity flows up to 1,179,000 BTU/hr with a 21 Cv flow coefficient. This internal pilot-operated valve operates reliably within a 0-5 PSI pressure differential, providing a necessary safety vent path when the system is de-energized.

The integrated NEMA 1 enclosure includes a dedicated junction box for streamlined field wiring. Standard 120V/60Hz AC electrical specifications ensure compatibility with most industrial combustion control strings. A unique double-disc design with overtravel provides redundant sealing, ensuring leak-tight shutoff when the valve is energized. Built for durability, these ASCO combustion valves withstand ambient temperatures from -40°F to 125°F, making them a staple for HVACR contractors managing gas manifold venting and safety shutoff protocols.

Key Benefits

• High-flow 21 Cv capacity supports up to 1,179,000 BTU/hr for large-scale industrial burners.
• Normally open configuration ensures a safe vent path for fuel gas during power loss or system shutdown.
• Durable aluminum construction and NBR elastomers provide excellent compatibility with natural gas and propane.
• Standard 1" NPT connection and junction box enclosure allow for rapid installation and secure electrical termination.
• Fast-acting response time (opening/closing in under 1 second) meets stringent combustion safety requirements.

Common Questions

• Is this valve suitable for outdoor installation? This specific model features a NEMA 1 enclosure with a junction box, which is rated for indoor general-purpose use. For outdoor or washdown environments, a NEMA 4X or watertight version is required.
• What is the maximum pressure for this ASCO vent valve? The JB821453CSA is rated for a maximum operating pressure differential (MOPD) of 5 PSI, specifically tuned for low-pressure fuel gas venting.
• Can I use this for normally closed shutoff applications? No, this is a normally open (N/O) valve. It remains open when de-energized to vent gas and closes only when power is applied.

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.

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