The Series VFD poppet valve for zero pressure accumulation conveyor systems from SMC Corp. of America (Indianapolis) provides a coefficient of volume flow (Cv) of 0.10 with an operating pressure range of 0 to 72 psi to handle large pressure drops found on long conveyor runs. It is designed to be incorporated with a conveyor system’s control logic and sensors, controlling the air pressure used for roller actuation and roller braking to make for smoother product transfer.

The valve is available for 110 Vac or 24 Vdc operation. It has three electrical connections including 2 pin M8 (screw-on/snap lock), DIN, and grommet. The 24 Vdc version consumes 0.62 W and is particularly useful where multiple valves are connected in series, allowing for voltage drops.

Response time is 14 ms (on) and 5 ms (off). The valve has a one-touch fitting for easy connection, a silencer with a sintered bronze element to reduce exhaust noise, and a manual override button. The valve comes with two mounting brackets, one a standard rectangular quick connect and the other a two-hole.

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Automation