Mercoid DA Series Pressure Switches
These highly sensitive pressure switches are used to turn ON the main pumps when system pressure falls due to activation of sprinkler heads and smaller make-up pumps for maintaining system pressure. They provide independent low & high setpoints over the entire pressure range for maintaining the minimum pressure needed for proper system operation and to prevent damage due to the over-pressurization of the system. These switches feature a screw terminal connection for added safety and allow vertical mounting for easy installation. They are CE, CSA, FM & UL approved and can be operated at temperatures up to 180 degrees F.