Johnson Controls V47AD-1 Valve

The Johnson Controls V47AD-1 is a 1" NPT temperature-actuated water regulating valve designed for modulating the flow of water or glycol in heavy-duty commercial and industrial cooling applications. This direct-acting valve opens on a temperature increase to maintain precise setpoints within a 75 to 135-degree F cross-ambient range. Built with a robust cast iron body and corrosion-resistant internal components—including a stainless steel stem and disc holder—the V47AD-1 is engineered to handle high-demand environments like refrigeration condenser cooling and hydraulic oil heat exchangers. The unit features a 6' armored capillary connected to a heavy-duty Style 4 bulb (11/16" diameter, 16 1/4" length), facilitating accurate remote sensing in closed tanks via the 1/2" NPT external fitting. Designed to minimize water hammer and chatter, this Penn water valve ensures stable thermal regulation without constant manual adjustment, making it a reliable standard for veteran mechanical contractors and service technicians managing liquid-cooled systems.

• Cross-Ambient Regulation: Maintains consistent control even when the bulb temperature fluctuates above and below the bellows temperature.
• Debris Resistance: Features a design with no close-fitting sliding parts in the water passages, reducing the risk of sediment buildup and jamming.
• Pressure-Balanced Internals: Protects the range spring from cooling water contact, preventing corrosion and ensuring long-term mechanical integrity.
• Manual Flushing: Simplifies system maintenance by allowing technicians to manually open the valve to clear debris without disturbing the temperature setting.
• Versatile Compatibility: Suitable for both water and glycol solutions in diverse cooling loops and industrial processes.

Is the V47AD-1 suitable for potable water applications?
No, this valve is constructed with copper alloys and cast iron intended for industrial and commercial HVACR cooling loops only and is not rated for drinking water systems.

How do I adjust the opening point on this model?
The opening point is adjustable via the range screw at the top of the spring housing. Turning the screw counterclockwise raises the temperature at which the valve begins to open.

Can this valve be mounted in any orientation?
For optimal performance and to prevent air pockets, the valve should be mounted vertically with the bellows facing downward, and the sensing bulb must be positioned so the capillary end is higher than the plugged end.

This item is not eligible for free shipping.

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.