ANSI 150LB BL 盲板法兰属于美标法兰标准体系。是美标法兰(又称ANSI法兰)的其中一种表现形式，是设备或管道上常用的法兰。以下是ANSI 150LB BL 盲板法兰中，相关压力下，各部位的全部尺寸及图示，以方便广大法兰从业者查询和参考。
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ANSI 150LB BL 盲板法兰标准 |
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|
压力 |
尺寸 |
外径 |
中心距 |
孔径 |
孔数 |
盘高 |
水线径 |
水线高 |
RF单重 |
FF单重 |
|
ANSI 150LB BLD 盲板 |
1/2 |
88.9 |
60.5 |
15.7 |
4 |
11.2 |
35.1 |
1.6 |
0.42 |
0.48 |
|
3/4 |
98.6 |
69.9 |
15.7 |
4 |
12.7 |
42.9 |
1.6 |
0.62 |
0.68 |
|
|
1 |
108 |
79.3 |
15.7 |
4 |
14.2 |
50.8 |
1.6 |
0.86 |
0.94 |
|
|
1-1/4 |
117.3 |
88.9 |
15.7 |
4 |
15.7 |
63.5 |
1.6 |
1.15 |
1.24 |
|
|
1-1/2 |
127 |
98.6 |
15.7 |
4 |
17.5 |
73.15 |
1.6 |
1.54 |
1.64 |
|
|
2 |
152.4 |
120.7 |
19.1 |
4 |
19.1 |
91.9 |
1.6 |
2.43 |
2.57 |
|
|
2-1/2 |
177.8 |
139.7 |
19.1 |
4 |
22.4 |
104.6 |
1.6 |
3.98 |
4.17 |
|
|
3 |
190.5 |
152.4 |
19.1 |
4 |
23.9 |
127 |
1.6 |
4.95 |
5.14 |
|
|
3-1/2 |
215.9 |
177.8 |
19.1 |
8 |
23.9 |
139.7 |
1.6 |
6.2 |
6.44 |
|
|
4 |
228.6 |
190.5 |
19.1 |
8 |
23.9 |
157.2 |
1.6 |
7.03 |
7.28 |
|
|
5 |
254 |
215.9 |
22.4 |
8 |
23.9 |
185.7 |
1.6 |
8.66 |
8.92 |
|
|
6 |
279.4 |
241.3 |
22.4 |
8 |
25.4 |
215.9 |
1.6 |
11.33 |
11.61 |
|
|
8 |
342.9 |
298.5 |
22.4 |
8 |
28.4 |
269.7 |
1.6 |
19.5 |
19.9 |
|
|
10 |
406.4 |
362 |
25.4 |
12 |
30.2 |
323.9 |
1.6 |
28.81 |
29.33 |
|
|
12 |
482.6 |
431.8 |
25.4 |
12 |
31.75 |
381 |
1.6 |
43.32 |
44.11 |
|
|
14 |
533.4 |
476.3 |
28.4 |
12 |
35.1 |
412.8 |
1.6 |
58.49 |
59.52 |
|
|
16 |
596.9 |
539.8 |
28.4 |
16 |
36.6 |
469.9 |
1.6 |
76.33 |
77.54 |
|
|
18 |
635 |
577.9 |
31.8 |
16 |
39.6 |
533.4 |
1.6 |
93.57 |
94.58 |
|
|
20 |
698.5 |
635 |
31.8 |
20 |
42.9 |
584.2 |
1.6 |
122.56 |
123.81 |
|
|
24 |
812.8 |
749.3 |
35.1 |
20 |
47.8 |
692.2 |
1.6 |
186.03 |
187.57 |
|
