1、CJ/T47-1999表1开孔率各部尺寸，mm孔数，个外形尺寸%质量型号LX6Xh上层孔径中层孔径mm上层中层L1LeL,LLs b:b2 bs 8,bsh:h:sD.=4mmkg/块mXnsD2=30mmF600X2802500.591.575802030d23.5411107513025.046110802020146oF26002802500.891.5758012030027.5351107513024.533h110802020168440F6002803200.591.5758012030023.5411107513025.046h7090202014647F6002803200.
2、891.5758012030027.53511d7513024.53317C90202016847F3002802500.591.5728012023.0391107513025.046110802020762%F3002802500.891.5728012024.5331107513m253311080202088220F31300280X3200.591.5728012d23.039i17513025.0461709020207624Eu3002803200.891.57280120-24.5331107513024.5331709020208824Fw4002802500.891.5736080-25.0351107513024.53311080-2011X8227Fa400280X3200.891.57360h8d25.0351d7513024.53317d9020118232注：开孔率，系指滤砖上层和中层孔的开孔总面积与滤砖在滤池中实际所占的面积（包括以20mm计的侧缝）之比。表中：”一沿滤砖长度方向的孔数，个：2一沿滤砖宽度方向的孔数，个。根据安装要求，FbFb上层孔仅88个通水（详见图B1),将F,、F:、F、F,滤砖下层开6个直径为110mm的孔，即为中心滤砖，可用于滤池中心配水弹上，2主要技术性能2.1g一H水力特性典线，见图4。
