HG 20615-97钢制管法兰型式、参数 法兰类型
5.O· 1 法兰类型按图5· 0· 1和表5· 0. 1的规定。
表S.0.1法兰类型及类型代号
法兰类型 | 法兰类型代号 | 标准号 |
带颈平焊法兰 | so | HG 20616 |
带颈对焊法兰 | WN | HG 20617 |
整体法兰 | IF | HG 20618 |
承插焊法兰 | SW | HG 20619 |
螺纹法兰 | Th | HG 20620 |
对焊环松套法兰 | LF/SE | HG 20621 |
法兰盖 | BL | HG 20622 |
大直径管法兰 | WN | HG 20623 |
5. 0. 2各种类型法兰适用的公称通径和公称压力按表5· 0. 2 — 1和表5. 0. 2— 2的规定„
表5.0.2—1 DN<600mm法兰类型和适用范围
法兰类型 | 带颈平焊法兰(so) | 带颈对焊法兰(WN) | 整体法=(IF) |
标准号 | HG 20616 | HG 20617 | HG 20618 |
公称通径 PN,MPa (Class)
NPS | DN | 2.0 | 5.0 | 11.0 | 15· 0 | 26.0 | 2.0 | 5.0 | 11.0 | 15.0 | 26.0 | 42.0 | 2.0 | 5.0 | 11,0 | 15.0 | 26.0 | 42.0 |
(Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | ||
(in) | (mm) | 150) | 300) | 600) | 900) | 1500) | 150) | 300) | 600) | 900) | 1500) | 2500) | 150) | 300) | 600) | 900) | 1500) | 2500) |
1/2 | 15 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
3/4 | 20 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
1 | 25 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
1 1/4 | 32 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
1 1/2 | 40 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
2 | 50 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
2 1/2 | 65 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
3 | 80 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
4 | 100 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
5 | 125 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
6 | 150 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
8 | 200 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
10 | 250 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
12 | 300 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
14 | 350 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |||
16 | 400 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |||
18 | 450 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |||
20 | 500 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |||
22 | 550 | X | X | X | ||||||||||||||
24 | 600 | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
续表 5. 0·2—1
法兰 | 类型. | 1 1 1 | 承插焊法兰(sw) | 螺纹法 | 兰(Th) | 对焊环松套法兰(LF/SE) | 法兰盖(BL) | ||||||||||
标准号 | HG 20619 | HG 20620 | HG 20621 | HG 20622 | |||||||||||||
公称通径 | PN,MPa (Class) | ||||||||||||||||
NFS | DN | 2.0 | 1 5.0 | 1 11.0 | 15. 0 | 26. 0 | 2.0 | 5.0 | 1 i 2.0 | 5.0 | 11.0 | 2.0 | 5.0 | 11. 0 | 15.0 | 1 26.0 | 42.0 |
(Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | (Class | ||
(in) | (mm) | 150) | 300) | 60。) | 900) | 1500) | 150) | 300) | 150) | 300) | 600) | 150) | 300) | ■ 600) | 900) | 1500) | 2500) |
1/2 | 15 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
3/4 | 20 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
1 | 25 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
1 1/4 | 32 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
η | 10 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
2 | 50 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
21/2 | 65 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
3 | 80 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | |
4 | 100 | X | X | X | X | X | X | X | X | X | X | X | |||||
5 | 125 | X | X | X | X | X | X | X | X | X | X | X | |||||
6 | 150 | X | X | X | X | X | X | X | X | X | X | X | |||||
8 | 200 | X | X | X | X | X | X | X | X | X | |||||||
10 | 250 | X | X | X | X | X | X | X | X | X | |||||||
12 | 300 | X | X | X | X | X | X | X | X | X | |||||||
14 | 350 | X | X | X | X | X | X | X | X | ||||||||
16 | 400 | X | X | X | X | X | X | X | X | ||||||||
18 | 450 | X | X | X | X | X | X | X | X | ||||||||
20 | 500 | X | X | X | X | X | X | X | X | ||||||||
22 | 550 | X | X | X | _ | ||||||||||||
24 | 600 | X | X | X | X | X | X | X | X |
表5·0·2—2 DN>600mm大直径法兰类型和适用范围
法兰类型 | 带颈对焊法兰(WNi) | ||||
标准号 | HG 20623 | ||||
公称通径 | PN, MPa (Class) | ||||
NPS | DN | 2_ 0 | 5. 0 | 11. 0 | 15-0 |
(in) | (mm) | (Class 150) | (Class 300) | (Class 600) | (Class 900) |
26 | 650 | X | X | X | X |
28 | 700 ' | X | X | X | X |
30 | 750 | X | X | X | X |
32 | 800 | X | X | X | X |
34 ' | 850 .. | X | X | X | X |
36 | 900 | X | X | X | X |
3S | 950 | X | X | ||
40 | 1000 | X | X | ||
42 | 1050 | X | X | ||
44 | 1100 | X | X | ||
46 | 1150 | X | X | ||
48 | 1200 | X | X | ||
50 | 1250 | X | X | ||
52 | 1300 | X | X | ||
54 | 1350 | X | X | ||
1400 | X | X | |||
58 | 1450 | X | X | ||
60 | 1500 | X | X |