The NDS Standard Series 14″ x 19″ body is tapered and has a minimum wall thickness of 0.200″. The body has a double wall at the top cover seat area with a minimum thickness of 0.250″.
The cover seat area has 16 structural support ribs on the underside of the seat, each with a minimum thickness of 0.250″.
The bottom of the body has a 0.500″ flange. The 14″ x 19″ cover has an average thickness of 0.250″. The valve box has a 3/8″ 304 Brass nut for the bolt-down as a standard feature.
Documents:
Technical Specs