Apply Electric Digital Proportional Valve: Adopt Imported Electric Digital Proportional Valve With Linear Position Sensor To Efficiently And Accurately Control The Proportional Opening Of The Angle Seat Valve And Combined With The Digital Pressure Sensor, So That The Mold Cavity Pressure Can Be Linearly Stable, Changed Traditional Equipment Analog Control Of Door Open And Close Two Switch Ways, With Imported Valve Brands Of Quality Guarantee And Stable Performance, While Effectively Saving Steam And Other Energy Consumption;