A crying shame that large valve manufacturers such as Crane are no longer in the US. Thanks in part to the US EPA and OSHA, clean air and water regulations, minimum wages, worker's comp regs, Unions absurd wage demands, etc...
Now the US is at the mercy of foreign countries. A CRYING shame.
I can advise you for only cast/ductile iron casting is MIV, The biggest foundry in whole Europe for cast/ductile iron valves production located in Croatia, they have big foundries there.
website:
Bob, thanks, and I will appreciate any information that you can provide on the wcb and cf8m.
Baram & Valving: I will look into the offshore but my client is a smaller manufacturer and will mostly need smaller quantities and good delivery. The transit time can be a problem offshore. Also it is more difficult to coordinate with a foundry that far away.
Hopefully this is helpful. I looked in the latest copy of valve magazine and found 3 advetisements for foundries who have experience in valve castings. All are well known in the industry.