NDS 10 in. Round Valve Box Cover

The NDS standard series 10 In. round valve boxes and covers are injection molded of structural foam Polyolefin material with a melt index between 10-12. Coloring and UV stabilizers are added, along with processing lubricants when needed. The 10 In. round body shall be tapered and have a minimum wall thickness of .200 In. The cover seat area shall have 6 structural support ribs on the underside of the seat, each with a minimum thickness of .250 In. The bottom of the body shall have a .500 In. flange. The 10 In. round cover shall have an average thickness of .250 In.