Description: 

Ventable, pilot-operated, balanced piston relief cartridges are normally closed pressure regulating valves.

Operation: 

The RVS-LAN pressure at the inlet (port 1) reaches the valve setting. The valve starts to open to tank (port 2), throttling flow to regulate the pressure. They provide a vent port (port 3) that connects between the main piston and pilot stage to provide for remote control by other pilot or 2-way valves. These valves are accurate, have low pressure rise vs. flow. They are smooth and quiet, and moderately fast.