Series AV-A soft start-up valves allow the user to set the initial rate of system pressurizations to minimize system shock. When deactivated, the valve quickly exhausts the system for safe servicing of equipment.
Valve part number example: EVT307-5DO-01-Q→VT307-5DO-01F-Q
Example of valve series with an “N” prefix: NVT3, NVO3, NVK, NVP, NVF, NVS, NVN, NVY, etc.