Equilibar offers pressure regulators designed to control low to very low pressures at relatively high flow rates. Pressures less than one psi can be controlled in sizes from 1/4″ NPT to 3/4″ NPT. The large diaphragm area of the Equilibar regulator allows low pressure control with very little droop as the flow rates increase. Pressure is easily adjusted using the manually operated knob. Most common industrial pressure regulators simply have too small of a diaphragm to produce the forces required to overcome the internal friction at the very low pressures being controlled. Also shown in the video is an electronic pressure regulator capable of controlling as low as 0 to 4 inches of water column full scale.