... Gate valve.,Valve,Cast steel knife gate valve, Stainless steel knife gate valveSpecifications:Design and manufacture standard: GB/T, ANSI, JIS, DIN1). Pressure: 0 ... , SS316, SS301, 316L), Cast Iron 4). Seal: Rubber, PTFE, Stainless steel, Hard Alloy 5). Working temperature: Rubber <100'C, Hard-seal< 425'C ... tesing (MPa)Working temperature (°C)Appropriate media1.0 1.61.5 2.41.1 1.8Rubber≤100°C Y/H≤425 ...