Johnson Controls V47AD-2 Valve

The Johnson Controls V47AD-2 Valve is a rugged, 1-inch NPT direct-acting temperature actuated water regulating valve engineered specifically for high-demand heating applications. This cast iron regulator utilizes a specialized Style 4 sensing bulb (11/16" diameter x 6" length) and a 6-foot capillary to modulate water flow based on sensed temperature deviations. Featuring a heating point range of 115°F to 180°F, the V47AD-2 is technically identical to the V47AD-2C model, providing field-proven reliability in steam or hot water systems. The direct-acting configuration ensures the valve opens on a rise in temperature, making it a critical component for maintaining secondary heat exchanger setpoints or managing condenser cooling loops where precise thermal modulation is required.

Technical Benefits for Contractors:

• Universal Compatibility: The 1" NPT connection and 1/2" NPT external fitting allow for seamless integration into existing commercial piping manifolds.
• High-Temperature Precision: Specifically calibrated for the 115-180°F range, ensuring stable performance in hydronic heating systems and industrial process cooling.
• Industrial Durability: The heavy-duty cast iron body is designed to handle high-pressure water surges and harsh mechanical room environments.
• Flexible Installation: A 6-foot capillary provides sufficient reach for remote bulb placement, allowing the valve body to be mounted in accessible service locations.
• Accurate Sensing: The Style 4 bulb provides a large surface area for sensitive, rapid response to temperature fluctuations, preventing thermal overshoot.

Common Questions:

What is the difference between V47AD-2 and V47AD-2C?
Technically, they are identical units. The "C" suffix often denotes bulk packaging or specific distributor regional coding, but the physical specifications, heating point range, and flow coefficients remain the same.

Can this valve be used for refrigeration cooling?
This is a direct-acting heating valve. While Johnson Controls V47 series valves are used for water regulation, ensure your application requires the valve to open as temperature increases within the 115-180°F range.

Is the capillary field-serviceable?
The 6-foot capillary and bulb are part of a sealed power assembly. To maintain precise calibration and avoid refrigerant or fluid loss from the element, the assembly should not be kinked or modified during installation.

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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.