DN(mm)
|
Wall Thickness (mm)
|
||||
0.6Mpa
|
0.8Mpa
|
1.0Mpa
|
1.25Mpa
|
1.6Mpa
|
|
32
|
—
|
—
|
—
|
—
|
3.0
|
40
|
—
|
—
|
—
|
—
|
3.7
|
50
|
—
|
—
|
—
|
—
|
4.6
|
63
|
—
|
—
|
—
|
4.7
|
5.8
|
75
|
—
|
—
|
4.5
|
5.6
|
6.8
|
90
|
—
|
4.3
|
5.4
|
6.7
|
8.2
|
110
|
4.2
|
5.3
|
6.6
|
8.1
|
10.0
|
125
|
4.8
|
6.0
|
7.4
|
9.2
|
11.4
|
140
|
5.4
|
6.7
|
8.3
|
10.3
|
12.7
|
160
|
6.2
|
7.7
|
9.5
|
11.8
|
14.6
|
180
|
6.9
|
8.6
|
10.7
|
13.3
|
16.4
|
200
|
7.7
|
9.6
|
11.9
|
14.7
|
18.2
|
225
|
8.6
|
10.8
|
13.4
|
16.6
|
20.5
|
250
|
9.6
|
11.9
|
14.8
|
18.4
|
22.7
|
280
|
10.7
|
13.4
|
16.6
|
20.6
|
25.4
|
315
|
12.1
|
15.0
|
18.7
|
23.2
|
28.6
|
355
|
13.6
|
16.9
|
21.1
|
26.1
|
32.2
|
400
|
15.3
|
19.1
|
23.7
|
29.1
|
36.3
|
450
|
17.2
|
21.5
|
26.7
|
33.1
|
40.9
|
500
|
19.1
|
23.9
|
29.7
|
36.8
|
45.4
|
560
|
21.4
|
26.7
|
33.2
|
41.2
|
50.8
|
630
|
24.1
|
30.0
|
37.4
|
46.3
|
57.2
|
710
|
27.2
|
33.9
|
42.1
|
52.2
|
—
|
800
|
30.6
|
38.1
|
47.4
|
58.8
|
—
|
Project
|
Unit
|
Experimental conditions
|
Indicators
|
|
Percentage elongation at break
|
%
|
|
≥300
|
|
Anti-hydraulic strength
|
MPE80
|
|
20℃,100h,9.0Mpa
|
No broken
|
MPE100
|
|
20℃,100h,12.4Mpa
|
No broken
|
|
Antistatic properties NH-VV22
|
The average of the outer surface resistivity
|
Ω
|
23℃,65%
Relative humidity
|
≤1.0x109
|
The average positive pressure ventilation surface resistance, spray tube inside and outside
|
Ω
|
23℃,65%
Relative humidity
|
≤1.0x108
|
|
The average gas pipe surface resistance
|
Ω
|
23℃,65%
Relative humidity
|
≤1.0x106
|
|
The average surface resistance tube
|
Ω
|
23℃,65%
Relative humidity
|
≤1.0x106
|
|
Retardant properties
|
3+1, 3+2, 4+1
Alcohol lamp burning time
3+1, 3+2, 4+1
|
S
|
Flame height: 150mm
Temperature: 960℃
|
Flaming combustion
1 pc≤10s, 6 pcs≤18s
|
S
|
Flame height: 150mm
Temperature: 960℃
|
Flameless combustion
1 pc≤60s, 6 pcs≤120s
|