Page 60 - PNEUMATIC SYSTEM INSTRUMENT
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3/2-WAY VALVES OPERATION







                                                                      When  the  push  button  is


                                                                      pressed,  the  pressured  port


                                                                      and  the  outlet  port  are  then

                                                                      connected,  so  air  compressed


                                                                      will flow from port 1(P) to 2(A).










                                                                    When  the  push  button  is

                                                                    released, the spring causes the


                                                                    valve to be in normal position


                                                                    where an outlet and an exhaust

                                                                    port      are      connected,         the


                                                                    compressed  air  will  flow  back


                                                                    from port 2(A) to 3(R).









                        A common application for a 3/2-way valve is to control a
                                                single acting cylinder.












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