The pneumatic valve uses compressed air as the power source and the cylinder as the actuator. It drives the valve through the electric valve positioner, converter, solenoid valve, position holding valve and other accessories to realize the on-off or proportional adjustment, and receives the control signal from the industrial automation control system to complete the regulation of the pipeline medium: flow, pressure, temperature and other process Paramèt . Valv la Pneumatic gen karakteristik sa yo nan kontwòl senp, repons vit, sekirite intrinsèques ak pa bezwen plis eksplozyon-mezi prèv .
Valv Pneumatic anjeneral ki konpoze de aksyonè konpwesyon ak valv kontwòl ki konekte, enstale ak debogaj . Pneumatic actionneur ka divize an sèl aji ak doub aji . Gen yon prentan retounen nan zak la yon sèl zak la. Menm lè echwe, li ka otomatikman retounen nan eta a louvri oswa fèmen nan valv la .
Valv Pneumatic dapre mòd aksyon li yo divize an de kalite: nòmalman louvri epi nòmalman fèmen . valv la kontwòl Pneumatic anjeneral reyalize pa efè yo pozitif ak negatif nan actionneur a ak metòd yo asanble diferan nan estrikti a valv .
