... of seal ringPTFE, 316/PTFE, 316/graphite, S.SRange of temperature-196°C - 540°C Filling materialPTFE, flexible graphite, Flange distanceAs ... bodyMaterial checking, radioactivity inspection, low temperature test, Special cleaning of valve bodyBenzolized oil, benzolized water Valve body and actuatorBased on requirements VRW330 Serial ...