This is typically caused by a failing thermocouple that can no longer generate the 25û30 millivolts required to hold the pilot valve open

Common Questions & Technical Support What causes this valve to fail to stay open

This 12-inch brass float stem features a 5/16-inch outside diameter

50" WC trip point eliminates the need for field adjustments

Durable NBR Construction: Includes high-quality Nitrile diaphragms and O-rings for excellent resistance to oil and common fluids

Johnson Controls V47AR-3 Valve THPU32HP7Y This is typically caused byThe Johnson Controls V47AR 3 is a rugged, 1 1 2 inch ASME flange direct acting temperature actuated water regulating valve engineered for demanding hydronic and process cooling applications. This cast iron water valve is designed to modulate water flow through a heat exchanger to maintain a specific temperature setpoint between 160F and 230F. Equipped with a 6 foot capillary and a Style 4 sensing bulb (11 16" diameter x 6" length), it utilizes a 1 2"