Welcome to Marengo Valve & Foundry

Metallurgical Control
Metallurgical control begins with selecting only the finest quality scrap and pig iron. We continually work with our suppliers to ensure material meet our quality standards. Our In-house metallurgical process controls include Spectrometer analysis, Carbon Equivalent, nodularity counts 100% on all Ductile Iron, temperature monitoring at both tap out and pour, and BHN hardness. If requested by our customer, we can provide complete chemical and material certification

Metallurgical Lab
Our Metallurgical lab offers facilities and procedures including:
Staffed Metallurgist
Metallographic preparation equipment.
Metallurgical microscope for microstructural evaluation of every-day-heats.
Brinell hardness tester.
Spectro LAB spectrometer
Chemical and mechanical Certification to ASTM Standards.

Sand Testing Lab
Our Sand Testing Lab offers facilities and procedures to perform sand tests including:
Loss On Ignition
Moisture
Green Compression
Tensile Strength
Process Contriol

All jobs are documented and mantained in our extensive datat base to insure they are produced with consistency each and every time.


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Molding
  • One Furan No-Bake Sand mixer for small and medium sized molds with a mixing rate of 600 pounds per minute.

  • Four Squeezer molding lines for casting weighing 60 pounds or less.

  • Two 5,000-pound induction furnaces with a melt capacity of 25,000 pounds per shift for gray and ductile iron.