”耀炜牌”管尺寸与压力定律（UPVC,CPVC,SCH80 ）
”耀炜牌”管尺寸与压力定律（UPVC,CPVC,SCH80 ）
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2017/10/19 13:51:20
“耀炜牌”UPVC,CPVC,SCH80 管尺寸与压力定律
◎ Schedule 80
|
size |
Average outer diameter |
minimum thickness |
working water pressure |
minimum demolition hydraulic pressure |
|
|
inch |
Nominal diameter |
mm |
mm |
psi(kg/cm2) |
psi(kg/cm2) |
|
1/2" |
15 |
21.3 |
3.7 |
850(59.8) |
2720(191.4) |
|
3/4" |
20 |
26.7 |
3.9 |
690(48.5) |
2200(154.8) |
|
1" |
25 |
33.4 |
4.6 |
630(44.3) |
2020(142.2) |
|
1+1/4" |
32 |
42.2 |
4.9 |
520(36.6) |
1660(116.8) |
|
1+1/2" |
40 |
48.3 |
5.1 |
470(33.1) |
1510(106.8) |
|
2" |
50 |
60.3 |
5.5 |
400(28.2) |
1290(90.8) |
|
2+1/2" |
65 |
73.0 |
7.1 |
420(29.6) |
1360(95.7) |
|
3" |
80 |
88.9 |
7.6 |
370(26.0) |
1200(84.4) |
|
4" |
100 |
114.3 |
8.6 |
320(22.5) |
1040(73.2) |
|
6" |
150 |
168.3 |
11.0 |
280(19.7) |
890(62.6) |
|
8" |
200 |
219.1 |
12.7 |
250(17.6) |
790(55.6) |
|
10" |
250 |
273.1 |
15.1 |
230(16.2) |
750(52.8) |
|
12" |
300 |
329.9 |
17.5 |
230(16.2) |
730(51.4) |
◎ Schedule 40
|
size |
Average outer diameter |
minimum thickness |
working water pressure |
minimum demolition hydraulic pressure |
|
|
inch |
Nominal diameter |
mm |
mm |
psi(kg/cm2) |
psi(kg/cm2) |
|
1/2" |
15 |
21.3 |
2.77 |
600(42.2) |
1910(134.4) |
|
3/4" |
20 |
26.7 |
2.87 |
480(33.8) |
1540(108.4) |
|
1" |
25 |
33.4 |
3.38 |
450(31.7) |
1440(101.3) |
|
1+1/4" |
32 |
42.2 |
3.56 |
370(26.0) |
1180(83.0) |
|
1+1/2" |
40 |
48.3 |
3.68 |
330(23.2) |
1060(74.6) |
|
2" |
50 |
60.3 |
3.91 |
280(19.7) |
890(62.6) |
|
2+1/2" |
65 |
73.0 |
5.16 |
300(21.1) |
970(68.3) |
|
3" |
80 |
88.9 |
5.49 |
260(18.3) |
840(59.1) |
|
4" |
100 |
114.3 |
6.02 |
220(15.5) |
710(50.0) |
|
6" |
150 |
168.3 |
7.11 |
180(12.7) |
560(39.4) |
|
8" |
200 |
219.1 |
8.18 |
160(11.3) |
500(35.2) |
|
◎ UPVC temperature damping constant
|
◎ CPVC temperature damping constant
|
注：
1.1kg/cm2 =14.223psi 1Mpa=142.86psi 1BAR=14.5PSI=0.9869大气压1psi=6.9kpa
2..以上压力定律适用于水温23℃,当温度高于23℃时，须视其材料（UPVC或 CPVC) 乘以上列温度递减常数。而水以外流体之压力定律并不全然适用上表。
3.采用法兰接合处之工作压力建议不应超过150psi(10kg/cm2),而利用螺纹（牙口）接合处之工作压力建议不应超过该尺寸对应工作压力之50%.
4.CPVC螺纹在流体温度66℃以上时不建议使用。
5.全尺寸SH40管及6"以上SC H80"管建议不可加螺纹。
6.耀炜牌CPVC FG SCH40 1/2"尺寸热水管经“国家化学建材测试中心”测试，水温在23±2℃时，管材爆破压力高达19.5Mpa (195.9kg/cm2)