SMC® AV4000-N04-3DZ AV 4000 Series Soft Start Up Valve With Light/Surge Voltage Suppressor, 1/2 in Nominal, NPT End Style, 0.2 to 1 MPa Pressure

Series AV soft start up valves allow the user to set the initial rate of system pressurization to minimize system shock. When deactivated, the valve quickly exhausts the system for safe servicing of equipment.