Flange Standard of China and Foreign Countries

2015-12-23 16:32:00
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Summary : Different fields, different flange type and different standard.

National Standard:

Different fields, different flange type and different standard:
1. Welded pipes flange standard: GB/T9115.1-2000; the highest pressure level: 420bar, maxsize of low-pressure: DN3000
2. Mechanical flange standard:  JB/T81-94 

3. Chemical flange standard of vision 2009: HG20592-HG20635-2009 

flange standard

Flange

Flange standard for pressure vessel:

1. A-Type socket-weld flange of pressure vessel: JB/T4701-2000
2. B-type socket-weld flange of pressure vessel:  JB/T4702-2000
3. Welding neck flange of pressure vessel:  JB/T4703-2000

4. Outside cover flange of pressure vessel:  JB/T4721-92

International Standard:

Steel flange of industry and pipeline system for general use: ISO7005-1

American Standard:

1. ASME B 16.5
2. ASME B16.47

3. AWWA C207

Other Foreign Countries:

1. German standard: DIN2501 
2. European standard: 1)TABLE D/E FLANGE BS10 2)BS4504 
3. Japanese and Korean standard: KSB1503/JIS B2220 
4. Australian standard: AS2129 Table D, Table E
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