Dixon Stainless Steel full port 3-piece ball valves feature a swing out design for easy maintenance. These valves have an ISO 5211 mounting pad and RTFE seat and seals. Maximum Temperature 400°F. Features RTFE seat and seals 4 in. NPT Threads Full port 3-piece design with female NPT ends Swing-out design for easy maintenance ISO 5211 mounting pad 316 stainless steel stem CF8M body and ball Spring loaded stem packing using Belleville washers