Ceradyne manufactures check valve balls for the oilfield industry and other applications. These balls are produced to Grade 25V from Ceralloy® 147-31N Silicon Nitride. These components are used widely throughout the Permian Basin and other regions to extend the life of “sucker rod” pumps used in oil production. Silicon nitride is used because of its high strength, fracture toughness and wear / chemical erosion resistance. Silicon nitride balls are used in the most demanding of the oilfield applications.

Check valve balls are available from stock in sizes ranging from 5/8 inch (15.8mm) to 2 1/4 inch (57.1mm) in increments of 1/16 inch (1.6mm). Smaller sizes from 1/8 inch (3mm) are available upon request.