Grinnell Mechanical Products has added 4- and 6-inch sizes to their model BV835 Grooved End Ball Valve series to complement the 2-, 2-1/2- and 3-inch sizes. The valve features a grooved end ductile iron body and a carbon steel chrome plated ball. The 4-inch valve is capable of 800 psi and the 6-inch valve is rated at 600 psi. This valve is supplied with a lever handle but offers the option of a gear operator. It is backed by a 10-year limited warranty.