The GRINNELL Model 590 Check Valve is a compact, rugged swing-type unit providing water flow in one direction and preventing flow in the opposite direction. It is manufactured with a ductile iron body, nickel-plated seat and a stainless steel clapper assembly for sizes 2 to 8 inch (60.3 to 219,1 mm), and a ductile iron clapper assembly for sizes 10 to 12 inch (273.0 to 323,9 mm). Designed to minimize water hammer caused by flow reversal, the valve is furnished with grooved ends for installation with GRINNELL Grooved Couplings or Flanged Adapters.
