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美国米勒M40PFA型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。
USA Miller M40PFA These low-temperaturestopping valves aremainly used in pipeline systems with low-temperature anddeep coldmediums,featured in its flexible operation and reliable sealing.
主要技术参数：
Major technical parameters:
公称压力/Nominalpressure:16.0MPa
设计温度/Designedtemperature:-40℃～+80℃
适用介质/Applicablemedium:LNG、LO2、LN2、LAr
阀体/Valve body:ZG0Cr18Ni9
阀瓣/Valve clack：0Cr18Ni9/H62
阀盖/Valve lid: 0Cr18Ni9
阀杆/Valve rod: 0Cr18Ni9
手轮/Hand wheel:Y102
主密封件/Mainseal:PTFE