Hydraulic solenoid valves are commonly much like pneumatic solenoid valves other than that they control the move of hydraulic fluid (oil). Hydraulic equipment use solenoids to control the circulation of oil. บทความเครื่องจักรกลการเกษตรและอะไหล่ The compressed air is controlled by solenoid valves. The controller sends electrical siglnals that either open up or https://connerkkjif.bloguerosa.com/16927807/the-basic-principles-of-pneumatic-actuator-ball-valve