The Watts 0067451 RA-1-AP 3/4" Steam Radiator Valve is a heavy-duty bronze radiator valve engineered for reliable shutoff in low-pressure steam and hydronic heating systems. Designed with a robust angle pattern, this valve facilitates efficient flow control in residential and commercial radiator configurations. The body is constructed from high-quality ASTM B584 bronze, housing a rising stem and a renewable composition disc that ensures a tight seal against 15 psi of saturated steam or 60 psi of non-shock water. For the service tech, the FIP x male union connection provides a standard interface for 3/4" nominal piping, while the Teflon stem packing minimizes maintenance by preventing leaks around the brass stem. Whether you are performing a full system restoration or a single-unit swap, this 3/4 inch steam valve delivers the thermal stability and mechanical durability required for intense heating cycles. Key Benefits Industrial Durability: The ASTM B584 bronze body resists corrosion and handles thermal expansion in high-temperature environments. Field Serviceable: Features a renewable composition disc and brass packing nut, allowing for easy internal maintenance without removing the valve body. Secure Connection: Equipped with a 3/4" FNPT inlet and a male union outlet for simplified installation and alignment with existing radiator spuds. Precision Throttling: Incorporates a heat-resistant plastic handwheel for manual adjustment and positive shutoff capability. Common Questions Is this valve compatible with one-pipe or two-pipe steam systems? The Watts RA-1-AP is a versatile shutoff valve suitable for both steam and hydronic (hot water) applications. In steam setups, it functions as the primary supply valve to isolate the radiator for service or replacement. Can the internal components be replaced if the valve leaks? Yes, the design utilizes a renewable composition disc and Teflon stem packing, which are standard serviceable parts, extending the operational life of the bronze casting. What are the maximum pressure ratings for this unit? This valve is rated for a maximum working pressure of 15 psi for saturated steam and 60 psi for non-shock water, making it ideal for standard low-pressure gravity or pumped systems. 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.
