· Normal Size: 2”~36” · Pressure rating: 150 LB~2500 LB · Design Standard: API 6D · Design Features: Bolted cover, Pressure seal cover. · Materials: WCB, LCB, LCC, CF8, CF8M, CF3, CF3M, CN7M, CF8C, WC6, WC9, C5, C12 · Test Standard: API 6D,API 598