Wafer style butterfly valve. Made of ductile iron. PTFE bushing. Buna-N seal and stem seals. Stainless steel top and bottom stems. The number of holes on the valve depends on the body size. Ductile iron body, ASTM A536. Aluminum bronze disc, ASTM B148, ALY.954. For use between two 150 lbs flanges. Will lock "open" or "closed". Buna-N liner. Rated to 200 psi pressure at ambient temperature (70 degree F). Size: 3".