Conbraco Industries 4A-104-A2F 3/4" Double Check W/Ball Valve

The Conbraco Industries 4A-104-A2F 3/4-inch Double Check with Ball Valve is a backflow prevention, and shutoff component, that is, used in HVAC systems, to avoid the contamination of potable water supplies by backpressure, or backflow. It has built-in ball shut-off valves on either end and a double check valve mechanism, to enable isolation of supply and regulation of pressure. It is installed in hydronic heating and chilled water loops, or in areas of system connection to makeup water and provide to sustain directional flow and system integrity.