The Siemens PICV is an Automatic Flow Control Valve with the addition of precise Modulating Flow Control. The Siemens *Pressure Independent Control Valve* (PICV) integrates three functions into a single device: control valve, adjustable flow limiter, and automatic pressure regulator. The automatic pressure regulator dynamically balances the circuit by maintaining a consistent flow through the valve, when system pressure fluctuates. The Control Valve adjust the flow rate through the adjustable flow limiter. The result is consistent flow control at an electrically controlled range of flow rates. The valve includes a shut off ball valve and two pressure/temperature test ports for flow verification and diagnostics.