The VRP-SB-GAP provides gap control (on-off) when utilized with pneumatically actuated valves. The VRP-SB-GAP measures the process sensing pressure and closes the actuated valve upon pressure rising to the high pressure set point. Conversely, VRP-SB-GAP will re-open the actuated valve upon pressure falling to the low pressure set point.  The action of the VRP-SB-GAP Gap Controller may be reversed to open an actuated valve upon rising pressure while closing on falling pressure.  The VRP-SB-GAP may be utilized for gap control applications with set points ranging from 1.0 psig to 1300 psig (6.9 kPa - 8964 kPa).