Profile: D K Machine Co. manufactures valve balls. Our products include stainless steel, titanium valve balls, Stellite®, Hastalloy®, brass, carbon steel, Inconel® and nickel alloy valve balls. We provide platings and coatings. We offer spherical grinding services for specialty products, as well as fabricating of valve balls. Our component mating system program supplies matched ball and valve metal seat sets to insure maximum valve performance. We serve the military, aerospace, pulp and paper, petroleum & chemical industries.