The three piece Flange valve is recommended for petrochemical utility service applications .It meets fire safe and anti-static requirement. 1,valve pressure rating 800/1000 psi(54-68bar) FOR W.O.G. 2,max temperture rating 450°F 3,full port 4,Reinforced PTFE seats 5,stainless steel ball and stem. 6.blowout-proof stem 7.Size range :1/2"-4" 9.material:stainless steel 10.design:2pc investment casting