常用水管管径与水容量表.doc

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1、常用水管管径与水容量表序号公径直径外径×壁厚（mm×mm）内径(mm)每米水容量（kg/m）mmin1DN151/221.9×2.7515.80.1962DN203/426.8×2.7521.30.3563DN25133.5×3.2527.00.5724DN325/442.3×3.2535.81.0075DN403/248×3.5041.01.3206DN50257.0×3.5050.01.9647DN655/273.0×3.5066.03.4218DN80389×4.081.05.1539DN1004108×4.0100.07.8541

2、0DN1255133×4.0125.012.27211DN1506159×4.5150.017.67612DN2008219×6.0207.033.65413DN25010273×6.50260.053.09314DN30012325×7.50310.075.47715DN35014377×9.0359.0101.22316DN40016426×9.0408.0130.74117DN45018480×9.0462.0167.63918DN50020530×9.0512.0205.88855°密封管螺纹尺寸：（GB7806-87）代号每25

3、.4mm牙数n螺距P（mm）螺纹有效长度（mm）1/2141.81413.23/4141.81414.55/4112.30919.13/2112.30919.1R表示圆锥外螺纹；Rc表示圆锥内螺纹；Rp表示圆锥外螺纹配合的圆柱内螺纹；