消火栓减压孔板水头损失计算
栓前安装孔板水头损失值 Hk(10KPa)
qx=2.5 qx=5.0 qx=2.5 qx=5.0 qx=5.0 qx=10.0
16 18.4 73.5 19.7 78.9 80.3
18 11 44.1 12.1 48.3 49.4
20 6.9 27.6 7.8 31 31.9 127.5
22 4.5 17.9 5.2 20.7 21.4 85.5
24 3 11.9 3.5 14.2 14.8 59.1
26 8.1 10 10.5 42
28 5.6 7.2 7.6 30.4
30 3.9 5.3 5.6 22.5
32 3.9 4.2 16.8
34 3.2 12.8
36 9.8
38 7.6
40 6
42 4.7
44 3.7
46 3
栓后安装孔板组合水头损失值 Hk(10KPa)
SN50 SN65
2.5 5
16 19.78 83.3