Parker PRT series 0.1s to 3s Pneumatic Timer, 8 bar max

All logic units require mounting on a separate 2 or 3 port base, available separately. Logic units have an input (green) and output (red) pressure indicator to show the state of the respective signal. Units are supplied with two captive screws for mounting on all types of base and sealing o-rings are in the bottom of each unit. Timer Module. A pneumatic timer consists of a solenoid coil/core, operating spring, timing disk, filter and diaphragm. The core moves up into the coil when it has been energized and this leads to pressure on the diaphragm. The diaphragm moves into the top chamber which un-traps the air through the timing disk. By altering the needle valve you can adjust the amount of delay. Very Reliable Long Life Expectancy