... single layer casing head, bottom is threaded... ESP wellhead and Christmas tree Working pressure: 2000PSI ~ 15000PSIWorking medium: oil, natural gas ... of seal, reliable sealing, simple operationBy the tubing hanger mandrel type, rely on the screw extrusion excitation ... seal, with hanging load, reliable sealing characteristicsThe tubing hanger is provided with a4cable penetrator hole, with the cable ...