注：当阀座和阀办密封面材料不同时，用低硬度材料代号。公称压力代号公称压力代号用阿拉伯数字表示，其数值是以兆帕（MPa）为单位的公称压力值的10倍。当标注工作温度和工作压力时，工作压力须用P标志并在P字的右下角附加介质***高温度数字，该数字是以10除介质***高温度数值所得的整数。如：工作温度为540℃，工作压力为10MPa的阀门，其代号为P54100。R9009545173DREE10P-6X/100YG24K31VR9009545233DREE16P-6X/200YG24K31VR9009429513DREM10P-6X/200YG24K4V-1R9009436313DREM10P-6X/315YG24K4V-1R9009645183DREM10P-6X/315YG24K4VR9007690603DREM16P-6X/250XYG24K4V-2R9009489503DREM16P-6X/200YG24K4V-1R9009491253DREM16P-6X/200XYG24K4V-1R9009504033DREM16P-6X/100YG24K4V-1R9009588613DREM16P-6X/200YG24K4VR9002443313DRE10P-6X/315YG24K4VR9009429753DRE10P-6X/200YG24K4V-1R9009430903DRE10P-6X/200XYG24K4V-1R9009503033DRE10P-6X/100YG24K4V-1R9007051403DRE16P-6X/200YG24K4V)