black sand casting

Black sand casting, also known as green sand casting in some industrial contexts, is a classic and widely used sand casting technique for fabricating metal components. It is a cost-effective and flexible process, making it a staple in industries such as automotive, machinery, valve manufacturing, and general engineering. it is often used for components where secondary machining is acceptable.

In valve production, it is particularly favored for casting large-diameter valve bodies due to its ability to handle complex shapes and heavy metal loads.