ZoomDetails Pressure Seal Swing Check ValveFeatures Seal-welded seats Bosses for taps & bypass Graphite packing Options Alternative Trims Alternative Materials Alternative Pipe Schedules Gear Operated Mounting Pads for Actuation NACE MR-01-75 Class 2500lb availablePressure Seal Valve, Swing Check ValvesBy adm_oil13 January, 2018