Welcome to Marengo Valve & Foundry

No job is too big, or too small. We are your one stop shop for quality rough and machined castings at a fair price.
Marengo Valve & Foundry LLC
123 W. Railroad Street
Marengo, IL 60152

Materials Poured: Gray Iron, all grades from class
Class 20
Class 30
Class 40
Class 50
Bainitic Iron
Ductile Iron All grades from 60-45-12
60-45-12
80-55-06
100-70-03
120-90-02
Hi-Sil Moly
Monel
NiHard
Ni-Resist
Type 1 thru 5
Ductile Ni-resist (Type 2D thru 5D)
Steel
Low to Medium Carbon
Stainless Steel
Manganese Steel (Hadfield Steel)
Other materials upon request

Melting
Two 5,000-pound induction furnaces with a melt capacity of 35,000 pounds per shift for gray and ductile iron.
Two 1500-pound induction furnaces with a melt capacity of 12,000 pounds per shift for gray, ductile, and low carbon steel

Coring
We offer a versatile line of core making processes, which are shell, Oil sand and airset cores. These processes form our stable of our coring capabilities.
In addition to theses processes we also have valued core suppliers which enables us to offer creative solutions to any coring problem.

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

Heat Treatment
In house box heat treatment furnace capable of ferritizing anneal and stress relieve.
Can provide specialized heat treatment from outside heat treat facilities.

Other Capabilities In-house pattern shop.
Casting engineering


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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.