ANSI 2500LB WN 高颈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 2500LB WN 高颈法兰中，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。
|
压力 |
尺寸 |
外径 |
内径 |
盘高 |
大头径 |
小头径 |
壁厚 |
台径 |
台高 |
总高 |
中心距 |
孔数 |
孔径 |
RF单重 |
FF单重 |
|
ANSI2500 |
1/2 |
133.4 |
15.7 |
30.2 |
42.9 |
21.3 |
5.6 |
35 |
6.4 |
73.15 |
88.9 |
4 |
22.4 |
3.14 |
3.72 |
|
3/4 |
139.7 |
20.8 |
31.75 |
50.8 |
26.7 |
5.9 |
42.9 |
6.4 |
79.25 |
95.3 |
4 |
22.4 |
3.71 |
4.33 |
|
|
1 |
158.8 |
26.7 |
35.1 |
57.15 |
33.5 |
6.8 |
50.8 |
6.4 |
88.9 |
108 |
4 |
25.4 |
5.27 |
6.06 |
|
|
1-1/4 |
184.2 |
35.1 |
38.1 |
73.15 |
422 |
7.1 |
63.5 |
6.4 |
95.3 |
130 |
4 |
28.4 |
7.78 |
8.83 |
|
|
1-1/2 |
203.2 |
40.9 |
44.5 |
79.25 |
483 |
7.4 |
73.15 |
6.4 |
111.3 |
146.1 |
4 |
31.8 |
10.9 |
12.16 |
|
|
2 |
235 |
52.6 |
50.8 |
95.3 |
60.45 |
7.9 |
91.9 |
6.4 |
127 |
171.5 |
8 |
28.4 |
16.19 |
17.79 |
|
|
2-1/2 |
266.7 |
62.7 |
57.15 |
114.3 |
73.15 |
10.5 |
104.6 |
6.4 |
142.7 |
196.9 |
8 |
31.8 |
23.69 |
25.75 |
|
|
3 |
304.8 |
78 |
66.55 |
133.4 |
88.9 |
10.9 |
127 |
6.4 |
168.1 |
228.6 |
8 |
35.1 |
35.93 |
38.57 |
|
|
4 |
355.6 |
102.4 |
76.2 |
165.1 |
114.3 |
11.9 |
157.2 |
6.4 |
190.5 |
273.1 |
8 |
41.1 |
55.1 |
58.58 |
|
|
5 |
419.1 |
128.3 |
91.9 |
203.2 |
141.2 |
12.9 |
185.7 |
6.4 |
228.6 |
323.9 |
8 |
47.8 |
91.73 |
96.59 |
|
|
6 |
482.6 |
154.2 |
108 |
235 |
168.4 |
14.2 |
215.9 |
6.4 |
273.1 |
368.3 |
8 |
53.8 |
142.05 |
148.49 |
|
|
8 |
552.5 |
202.7 |
127 |
304.8 |
219.2 |
16.5 |
269.7 |
6.4 |
317.5 |
438.2 |
12 |
53.8 |
213.42 |
221.23 |
|
|
10 |
673.1 |
254.5 |
165.1 |
374.7 |
273 |
18.5 |
323.8 |
6.4 |
419.1 |
539.8 |
12 |
66.6 |
405.84 |
417.49 |
|
|
12 |
762 |
304.8 |
184.2 |
441.5 |
323.8 |
19 |
381 |
6.4 |
463.6 |
619.3 |
12 |
73.2 |
575.67 |
590.33 |
