VALVE:CONTROL;NOMINAL SIZE:1/2 IN,END CONNECTION:FBSPT,ACTUATOR TYPE:HEAD,MANUAL ADJUSTABLE SCREW,TYPE:FLOW,FLOW RATING:29 NM3/H ADJUSTABLE,PRESSURE RATING:1.75 BAR MAX,BODY MATERIAL:CI,SOFTGOODS:NBR SEAL,ADDITIONAL SPECIFICATION:GAS MEDIA,COVERED ADJUSTABLE HEXAGONAL MODEL NO.: S AF15.A60-1/2 INCH BSP