此类型专用低温截止阀主要用于低温和深冷介质的管路系统，具有开关灵活、密封可靠的特点。Theselow-temperaturestoppingvalvesaremainlyusedinpipelinesystemswithlow-temperatureanddeepcoldmediums.featuredinitsflexibleoperationandreliablesealing.主要技术参数Maintechnicalparameters公称压力/Nominalpressure:4.0MPa设计温度/Designtemperature:-196℃～+80℃适用介质/Applicablemedium:LNG、LO2、LN2、LAr连接方式/Connectionmethod:承插焊主要零部件名称Maincomponentsname材料Materials阀体/ValvebodyZG0Cr18Ni9阀瓣/Valvedisc0Cr18Ni9阀盖/ValvecoverZG0Cr18Ni9阀杆/Valvestem0Cr18Ni9手轮/HandwheelY102主密封件/MainsealPCTFE)