Cast Iron Valves: Type: Butterfly valves, Gate valves ... Suitable temperature: -45c~150c Standard: (1)Design and manufacture:DIN3352, BS5163,BS5150, ANSI B16.34, API600 ... ISO5752, JIS,API609, MSS, BS5155 (5)Inspection and test: API598, EN12266-1, BS6755,API6D, ISO5208 ... Flexible graphite Operation: Manual, Pheunatic, Electric, Hydraulic and Pnewmatic-Hydraul Appropriate medium: Air,water,sewage,steam ...