Industrial Refrigeration Parts is your trusted source for pressure controls. Pressure Controllers are high-precision instruments which can sense very low pressures (typically measured in inches of water column). When set pressure is attained, the controller sends out an electric or pneumatic proportional signal (or “on-off” signal), which is relayed to a control valve that can be set to open, close, or modulate to a flow rate proportional to the signal. We carrier pressure controls from Danfoss and Hansen. For all your parts needs, we are here to help.