各国口径尺寸换算

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各国口径尺寸换算

公称尺寸inchinch公称通径DN国标A国标B美标日标
1/8"610.3
1/4"813.7
3/8"1017.1
1/2"0.8401521.31821.3
3/4"1.0502026.92526.727.2
1"1.3152533.73233.434
11/4"1.6603242.43842.242.7
11/2"1.9004048.34548.348.6
2"2.3755060.35760.360.5
21/2"2.8756576.17673.076.3
3"3.5008088.98988.989.1
31/2"90101.6101.6
4"4.500100114.3108114.3114.3
5"5.563125139.0133141.3139.80
6"6.625150168.3159168.3165.20
8"8.625200219.1219219.1216.30
10"10.750250273.0273273.1267.40
12"12.750300323.9325323.9318.50
14"14.000350355.6377355.6355.60
16"16.000400406.4426406.4406.40
18"18.000450457.0478457.2457.20
20"20.000500508.0529508.0508.00
22"22.000550559.0558.8558.00
24"24.000600610.0630609.6609.60
26"26.000650660.0660.4660.40
28"28.000700711.0720711.2711.20
30"30.000750762.0762.0762.00
32"32.000800813.0820812.8812.80
34"34.000850864.0863.6863.60
36"36.000900914.0920914.4914.40
38"38.000950965.0965.2965.20
40"40.00010001016.010201016.01016.00
42"42.00010501067.01066.81066.80
44"44.00011001118.011201117.61117.60
46"46.00011501168.01168.41168.40
48"48.00012001219.012201219.21219.20
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