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The CardinalTransformer Oil Pump is offered in both centrifugal and axial flow models. These pumps have been the standard used on oil filled transformers in North America for decades. Cardinal took over the manufacturing when other suppliers such as GE, Westinghouse and Ingersoll Rand stopped manufacturing Transformer Oil Pumps.
Flange sizes for centrifugal pumps range from 2" x 2" to 8" x 8".
Axial flow pumps are available in 6" x 6" and 8" x 8" sizes.
Eighteen standard models are available, all offered with a variety of customer specified optional features.
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Standard Features
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Heavy Duty class 30 cast iron is used for the pump casing, motor
enclosure and impeller to provide long life.
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Pump and motor units are pressure tested to 50 psig to establish the
integrity of the complete unit.
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Motor windings Hi-Pot tested for 60 seconds at (2x voltage + 1000),
to ensure the electrical integrity and continuity.
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Impellers designed to permit thermosyphon flow (allows natural
convection even when the pump is shut off).
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The pumps continuous duty operating temperatures are -40 C (-40 F)
to + 100 C (+212 F).
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Winding resistances of the motor are taken before and after the pump
is built, to ensure the integrity of the product.
Optional Features
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Tecsonics® Bearing Wear Monitoring System.
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Special motor insulation for transformer cooling liquids other than transformer oil.
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Shaft rotation sight plugs to facilitate checking shaft rotation.
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Metric sized flange connections for international compatibility.
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Performance run-in testing and certified test curves.
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Various connectors are available to suit customers specific requirements.
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Motors available in single or dual voltage, single or three phase, 50 or 60 Hz frequencies.
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Large thrust face bearing.
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Custom designed transformer oil pumps that meet existing pump dimensions and performance requirements.
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Transformer Pumps suitable for rail car service.
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