The Erie PopTop 1/2" Sweat 2-Way Zone Valve (24V) is a commercial-grade, motorized control valve engineered for two-position (on/off) fluid control in hydronic heating and cooling systems. Manufactured by Schneider Electric under the trusted Erie brand, it features a patented tool-less PopTop actuator mechanism. This allows the actuator head to snap securely onto the solid brass body with a single click, completely eliminating mounting linkages or calibration. It is widely carried by specialty suppliers like SupplyHouse.com for residential and commercial boiler loops. Core FeaturesTool-Less Installation: The actuator head can be snapped on after the brass body is fully soldered into the piping system, safeguarding internal electronic components from dangerous soldering heat.Fail-Safe Spring Return: Utilizes a highly durable hysteresis synchronous motor to drive the valve open, which automatically springs back to its default closed position during a power outage.System Serviceability: The motorized head can be popped off and replaced without draining the water line or cutting the pipe grid.Manual Override Lever: Includes an integrated mechanical lever to manually lock the valve open for system flushing, filling, or troubleshooting.