Johnson Controls V50AB-3 Valve

The Johnson Controls V50AB-3 is a rugged, self-operated modulating valve engineered specifically for outdoor crop dryer service and low-pressure gas applications. Featuring a 1/2" FNPT connection, this valve maintains precise control within a 55 to 115 degree temperature range, ensuring consistent thermal output during critical drying cycles. The 30 psig maximum line working pressure rating makes it ideal for LP gas regulation where reliability in harsh environments is non-negotiable. Field adjustments are simplified via the integrated "T" handle located atop the spring housing, allowing technicians to calibrate the proportional flow control without specialized tools. Built with high-grade internal components, the V50AB-3 gas valve provides the mechanical durability required for industrial agricultural HVAC systems, ensuring stable modulating gas flow and preventing setpoint drift during rapid ambient temperature shifts common in field operations.

Key Performance Benefits

• Optimized for Crop Dryers: Specifically designed to handle the high-cycle demands of outdoor agricultural heating equipment.
• Field-Adjustable Setpoints: The ergonomic "T" handle adjustment allows for rapid onsite tuning within the 55-115°F range.
• Self-Contained Operation: Functions as a direct-acting thermostatic valve, requiring no external power source or pilot lines for modulation.
• Heavy-Duty Construction: Built to withstand the 30 psig maximum pressure limits typical of secondary stage gas regulation.
• Precision Threading: Standard 1/2 inch NPT pipe size ensures seamless integration with existing manifold piping.

Common Installation Questions

What is the primary application for the V50AB-3?
This valve is primarily used in crop dryer temperature control systems to modulate the flow of gas to the burner based on the sensing bulb's temperature feedback.

Can this valve be used for high-pressure steam?
No, the Johnson Controls V50 series is rated for a maximum line pressure of 30 psig and is specifically intended for outdoor gas service rather than high-pressure steam applications.

Is the modulating range adjustable?
Yes, the modulating gas valve can be adjusted within its 55 to 115 degree Fahrenheit range using the manual adjustment handle on the spring housing.

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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.