????????????|???????????|?????????????????
????????????:
??GB??T3421??1982??
??????????????????????????ú??????????????????P??G??????
???????????:
?в????????
R=C+E R1=C R2=E
?в???????????
|
??????
DN??mm |
??????磯mm |
|
a |
b |
c |
e |
|
75??450 |
15 |
10 |
20 |
6 |
|
500???? |
18 |
12 |
25 |
7 |
?????????????????
|
??????
DN??mm |
???mm |
?????mm |
??
D2??mm |
??Ч?????mm |
?п????????
??kg |
??????????
??kg |
???1m????
??kg |
|
T |
D1 |
5000 |
6000 |
|
????????kg |
|
P?? |
G?? |
P?? |
G?? |
P?? |
G?? |
P?? |
G?? |
P?? |
G?? |
|
200 |
8.8 |
10.0 |
202.4 |
200 |
220.0 |
227.0 |
254.0 |
|
|
16.30 |
0.382 |
42.0 |
47.5 |
|
250 |
9.5 |
10.8 |
252.6 |
250 |
271.6 |
303.0 |
340.0 |
|
|
21.30 |
0.626 |
56.3 |
63.7 |
|
300 |
10.0 |
11.4 |
302.8 |
300 |
322.8 |
381.0 |
428.0 |
452.0 |
590.0 |
26.10 |
0.741 |
70.8 |
80.3 |
|
350 |
10.8 |
12.0 |
352.4 |
350 |
374.0 |
|
|
566.0 |
623.0 |
32.60 |
0.857 |
88.7 |
98.3 |
|
400 |
11.5 |
12.8 |
402.6 |
400 |
425.6 |
|
|
687.0 |
757.0 |
39.00 |
1.460 |
107.7 |
119.5 |
|
450 |
12.0 |
13.4 |
452.4 |
450 |
476.8 |
|
|
806.0 |
892.0 |
46.90 |
1.640 |
126.2 |
140.5 |
|
500 |
12.8 |
14.0 |
502.4 |
500 |
528.0 |
|
|
950.0 |
1030.0 |
52.70 |
1.810 |
149.2 |
162.8 |
|
600 |
14.2 |
15.6 |
602.4 |
599.6 |
630.8 |
|
|
1260.0 |
1370.0 |
68.80 |
2.160 |
198.0 |
217.1 |
|
700 |
15.5 |
17.1 |
702.0 |
698.8 |
733.0 |
|
|
1600.0 |
1750.0 |
86.00 |
2.510 |
251.6 |
276.9 |
|
800 |
16.8 |
18.5 |
802.6 |
799.0 |
836.0 |
|
|
1080.0 |
2160.0 |
109.00 |
2.860 |
311.3 |
342.1 |
|
900 |
18.2 |
20.2 |
902.9 |
899.0 |
939.0 |
|
|
2410.0 |
2630.0 |
136.00 |
3.210 |
379.1 |
415.7 |
|
1000 |
20.5 |
22.6 |
1000.0 |
955.8 |
1041.0 |
|
|
3020.0 |
3300.0 |
173.00 |
3.550 |
473.2 |
520.6 |
???
1.?????????????????????7.20g??cm3.
2.??????=???1m????????Ч????+?в?????????(????????????????????λ??Ч????)??
(2)????
????????????????????
|
??????DN??mm |
???????mm |
|
200??450 |
1.51 |
|
>1500 |
1.251 |
???1.????1????????Ч????(m)?????(m)????1????????????????
2.?????????????????????
(3)??????
???????????????????WP???????0.30????????Ws???????0.10????
(4)????????????
??????????
|
??????DN/mm |
????????bbMPa |
|
??300 |
340 |
|
350??700 |
280 |
|
??800 |
240 |
????????????????????
|
??????? |
??????DN/mm |
?????????MPa |
|
P?? |
??450 |
2.00 |
|
??500 |
1.50 |
|
G?? |
??450 |
2.50 |
|
??500 |
2.00 |
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|
?????λ???
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