Cardinal pumps

Cardinal pumps meet extreme temperature requirements and are rated for continuous duty operating temperature ranges from –40ºF to 212ºF. The pumps are capable of permitting thermosiphon flow when the pump is not operating, thus allowing natural convection even when the pump is off. A rugged split-casing design with heavy-duty class 30 cast iron is used for the pump casting, motor enclosures, impellers and volutes. Large thrust-face-sleeve bearings also extend life, minimize wear and reduce maintenance. With two gasket seals on each pump instead of mechanical seals, repair and upkeep is reduced. The pump’s design allows transformer oil to flow back through the motor and bearings, thereby providing cooling and lubrication. All Cardinal pump and motor units are subjected to extensive testing, including pressure tests to 50 psig to ensure the integrity of the complete unit.