Manual Balancing Valve, Multi-Turn Globe Valve, Y-Pattern, Variable Orifice, Threaded Connection, Memory Stop, PT Ports, 300 WOGTemperature and Pressure Rating:- 300 PSI- -4ºF to 250ºFFeatures:+/- 5% AccuracyPositive Shut-OffIntegral Metering Orifice PlateTwo Pressure Test PortsMulti-Turn, 360° Handwheel with Vernier Scale and Digital ReadoutsPrecise Flow Measurement and Flow Balancing100% Leak TestedConforms to BS 7350Size: 1/2""