管件和阀件局部阻力系数.docx

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管件和阀件名称值标准弯头90。方形弯头180回转头活接管弯管45,=0.3530。45。1.31.50.46075。90。,=0.7590105120R/d1.50.080.110.140.160.1750.190.202.00.070.100.120.140.150.160.17突然扩大a,a200.10.20.30.40.50.60.70.80.9110.810.640.490.360.250.160.090.040.011突然缩小aia200.10.20.30.40.50.60.70.80.910.50.470.450.380.340.30.250.200.150.090标准三通管闸阀截止阀（球心阀）碟阀=0.4=1.5全开3/4开0.170.9全开=6.4a5010203040=1.3=11/2开1/4开4.5241/2开=9.545506070旋塞00.240.525。1.543.91IO010.82018.730.6118751040060单向阀角阀（90。）底阀滤水器（或滤水网）0.24摇板式=20.5251.521.5617.3206球形式=70水表（盘形）7