各种管材绝对粗糙对比 表7

材质

绝对粗糙度(mm)

钢管

0.08-0.39

铸铁管

0.25

经过整平的水泥管

0.33

旧的生锈钢管

0.60

纤维缠绕玻璃管

0.008

玻璃钢夹砂管参数表8
公称直径DN
重力流
0.6Mpa
SN5000
SN10000
SN2500
SN5000
SN10000
SN5000
SN10000
SN10000
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
t(mm)
W(Kg/m)
500
9.2
29.48
11.0
35.25
8.0
25.64
9.0
28.84
11.0
35.25
8.8
28.20
10.8
34.61
10.8
34.61
600
10.4
40.00
13.5
51.91
8.5
32.69
10.0
38.46
12.8
49.22
9.8
37.69
12.4
47.68
12.4
47.68
700
12.2
54.73
15.5
69.54
9.4
42.17
11.8
52.94
15.1
67.75
11.5
54.59
14.8
66.40
14.6
65.50
800
13.6
69.73
17.8
91.26
10.8
55.38
13.2
67.75
17.0
87.16
12.8
66.63
16.5
84.60
16.4
84.08
900
15.4
88.83
19.0
109.56
12.2
70.37
15.0
86.52
18.4
106.13
14.5
83.64
18.2
104.96

18.2
104.98
1000
17.0
108.95
21.0
134.59
13.4
85.88
16.5
105.75
20.5
131.38
16.2
103.82
20.2
129.46
20.0
128.18
1200
18.7
143.81
24.8
190.73
14.5
111.52
18.4
141.51
24.5
188.42
18.2
139.97
24.2
186.11
24.0
184.57
1300
22.5
192.6
28.2
241.0
16.2
137.3
21.2
180.4
27.5
234.9
20.2
169.5
26.5
224.9
25.5
213.8
1400
23.0
206.36
29.3
262.89
17.5
157.02
22.5
201.88
28.6
256.61
21.5
192.91
28.2
253.02
28.0
251.23
1500
24.8
238.41
31.5
302.82
18.6
178.81
24.5
235.53
32.3
310.51
23.5
225.91
30.6
294.17
30.2
290.32
1600
26.3
269.69
33.5
343.51
19.5
199.96
26.0
266.61
33.0
338.39
24.8
254.31
32.5
333.26
32.0
328.13
1800
29.4
339.16
37.8
436.6
22.0
253.79
29.0
334.54
37.0
426.83
27.8
320.70
36.5
421.06
36.0
415.30
2000
32.8
420.42
41.8
535.78
25.2
323.01
32.6
417.86
41.5
531.94
31.6
405.04
41.0
525.53
39.5
506.30
2200
35.9
506.17
45.8
645.76
27.5
387.74
35.0
493.48
45.0
634.48
33.8
476.56
44.2
623.2
43.2
609.10
2400
39.2
602.93
49.8
765.99
29.5
453.75
38.0
584.49
37.0
567.11
2500
40.5
648.90
52.0
833.15
31.5
504.70
39.5
632.87
38.5
616.85
2800
47.8
878.1
59.5
1091.9
37.5
689.5
47.0
864.0
45.2
823.8
3000
52.5
980.1
69.0
1290
40.4
749.1
48.6
898.9
47.9
877.2
4000
70.2
1750
91.3
2277



 
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