Class250CheckValve止回阀技术要求：设计和制造:ANSIB16.34、API6D、BS1868结构长度：ANSIB16.10、API6D法兰连接：ANSIB16.5试验和验收：API598、API6D尺寸和重量Dimensi***&weight：公称压力PN(MPa)1.0(1.6)2.54.0公称通径DN(MPa)尺寸(mm)重量(Kg)尺寸(mm)重量(Kg)尺寸(mm)重量(Kg)LDLDLD1516530.1516530.225530.232019630.2519630.331.5630.352522730.422730.4535.5730.533228840.5528840.640840.84031.5940.7531.5940.845941.250401091.1401091.2561091.965461292.0461292.3631292.980501442.6501443.0711445.5100601645.7601707.0801709125901941090197