Maxon 200SMA21AA11BB11A0 Gas Valve

The Maxon 200SMA21AA11BB11A0 is a heavy-duty 2-inch ANSI threaded gas valve designed for high-capacity industrial burner systems. Featuring a standard port flow configuration and a normally open 2-way operation, this cast iron gas shut-off valve is built for general purpose applications where reliability is non-negotiable. The unit utilizes Buna body O-rings and a bumper for superior sealing performance. With 115Vac 60Hz solenoid and motor voltages, this auto-reset motor valve achieves a rapid 2.5 second motor timing, ensuring precise control during system cycles. The integration of VOS1/VCS1 limit switches provides critical feedback for valve position monitoring, while the NEMA 4 enclosure rating protects internal components from moisture and dust in demanding mechanical rooms. This Maxon Series 2000 valve is the industry standard for safe fuel shut-off in industrial furnaces and large-scale boiler operations.

• Rapid Response: The 2.5-second motor timing ensures quick actuation for precise gas flow management.
• Durable Construction: Cast iron housing with Internal Trim Package 1 supports long-term durability in high-cycle environments.
• Position Verification: Equipped with VOS1 (Valve Open Switch) and VCS1 (Valve Closed Switch) for remote status confirmation.
• Weatherproof Reliability: NEMA 4 rated enclosure allows for installation in varied environmental conditions without compromising electrical integrity.
• Industry Compatibility: 2-inch ANSI threaded connections allow for straightforward integration into existing gas train piping.

Is the Maxon Series 2000 suitable for outdoor installation?
Yes, the NEMA 4 enclosure rating ensures the valve is protected against windblown dust and rain, making it suitable for both indoor and outdoor gas trains.

What is the function of the VOS1/VCS1 switches in this assembly?
These are integrated limit switches that provide electrical confirmation to the burner management system (BMS) regarding whether the valve is fully open or fully closed.

Does this valve require manual intervention after a power loss?
No, this specific model features an auto-reset function, allowing the valve to return to its operational state once the control signal is restored.

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.