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Technical performance
Nominal Diameter DN(mm) |
Standard |
Nominal pressure PN(Mpa) |
Experimental Pressure (Mpa) |
气密试验(Mpa) |
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Strength |
positive Seal |
reversal Seal |
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50-3000 |
GB |
0.6, 1.0 |
1.5PN |
1.1 PN |
1.1 PN |
0.6 |
1.6, 2.5, 4.0 |
0.6-0.8 PN |
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Nominal Diameter DN(mm) |
Standard |
Class |
Mpa |
Mpa |
Mpa |
Mpa |
2-72 |
USA |
150LB |
3.0 |
2.2 |
0.5-0.8Ps |
0.6 |
2-24 |
300LB |
7.5 |
5.5 |
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4-16 |
600LB |
22.5 |
16.5 |
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Applicable media |
steam, natural gas, oil air |
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Driven method |
Manual Electric Pneumatic Hydraulic |
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Pressure -Temperature grade of nodular cast iron valve
Nominal pressure Mpa |
Max Temperature (℃) |
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-30-120 |
150 |
200 |
250 |
300 |
350 |
|
Max allowable Working pressure (Mpa) | ||||||
1.6 |
1.6 |
1.52 |
1.44 |
1.28 |
1.12 |
0.88 |
2.5 |
2.5 |
2.38 |
2.25 |
2 |
1.75 |
1.38 |
Materials of parts
Name |
Material |
|
Body |
WCB WC6 WC9 CF8 HT200 CF8M CF3 CF3M QT400 |
|
repair welding |
CR13 CoCrw 1Cr18Ni9Ti |
|
Seal side |
solid |
CF8 CF8M CF3 CF3M |
Gasket |
Cr13 1Cr18Ni9Ti Ocr18 Ni9Ti |
|
Temperature (℃) |
Max Allowable Working pressure for each of Temperatures Mpa |
|||
PN2.0 |
PN5.0 |
PN10 |
PN15 |
|
-29-38 |
1.96 |
5.11 |
10.21 |
15.32 |
50 |
1.92 |
5.01 |
10.02 |
15.02 |
100 |
1.77 |
4.64 |
9.28 |
13.91 |
150 |
1.58 |
4.52 |
9.05 |
13.57 |
200 |
1.40 |
4.38 |
8.76 |
13.15 |
250 |
1.21 |
4.17 |
8.34 |
12.52 |
300 |
1.02 |
3.87 |
7.75 |
11.62 |
350 |
0.84 |
3.70 |
7.39 |
11.09 |
375 |
0.74 |
3.65 |
7.29 |
10.94 |
400 |
0.65 |
3.45 |
6.90 |
10.35 |
425 |
0.56 |
2.88 |
5.75 |
8.63 |
450 |
0.47 |
2.0 |
4.01 |
6.01 |
475 |
0.37 |
1.35 |
2.71 |
4.06 |
500 |
0.28 |
0.88 |
1.76 |
2.64 |
525 |
0.19 |
0.52 |
1.04 |
1.55 |
540 |
0.13 |
0.33 |
0.65 |
0.98 |
Pressure —Temperature grade for Flange and WCB valve
Pressure —Temperature grade for Flange and CF8M valve
Temperature (℃) |
Max Allowable Working pressure for each of Temperatures Mpa |
|||
PN2.0 |
PN5.0 |
PN10 |
PN15 |
|
-29-38 |
1.90 |
4.96 |
9.92 |
14.89 |
50 |
1.84 |
4.80 |
9.60 |
14.37 |
100 |
1.59 |
4.15 |
8.30 |
12.45 |
150 |
1.44 |
3.75 |
7.50 |
11.25 |
200 |
1.32 |
3.44 |
6.87 |
10.31 |
250 |
1.21 |
3.21 |
6.41 |
9.62 |
300 |
1.02 |
3.05 |
6.11 |
9.16 |
350 |
0.84 |
2.93 |
5.87 |
8.80 |
375 |
0.74 |
2.89 |
5.78 |
8.68 |
400 |
0.65 |
2.86 |
5.73 |
8.59 |
425 |
0.56 |
2.85 |
5.70 |
8.54 |
450 |
0.47 |
2.8 |
5.64 |
8.46 |
475 |
0.37 |
2.80 |
5.60 |
8.40 |
500 |
0.28 |
2.78 |
5.56 |
8.34 |
525 |
0.19 |
2.58 |
5.16 |
7.74 |
550 |
0.13 |
2.50 |
4.99 |
7.49 |
575 |
0.13 |
2.28 |
4.56 |
6.86 |
600 |
0.13 |
1.98 |
3.96 |
5.94 |
625 |
0.13 |
1.58 |
3.16 |
4.74 |
650 |
0.13 |
1.25 |
2.50 |
3.74 |
675 |
0.13 |
0.98 |
1.97 |
2.95 |
700 |
0.13 |
0.77 |
1.54 |
2.3 |
725 |
0.13 |
0.62 |
1.25 |
1.86 |
750 |
0.13 |
0.48 |
0.96 |
1.44 |
775 |
0.13 |
0.38 |
0.75 |
0.13 |
800 |
0.10 |
0.30 |
0.61 |
0.91 |
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