The Structural Length Of The Valve

Publish Time: 02/22 2025 Author: Site Editor Visit: 6

Lined Valve structural length Chinese data:
1. Basic series of structural length
Basic series of flange-connected valve structural length.
2. Gate valve structural length
3. Globe valve, check valve and throttle valve structural length
4. Ball valve structural length
5. Butterfly valve structural length
6. Diaphragm valve structural length
7. Plug valve structural length
8. Steam trap structural length
9. Pressure reducing valve structural length
10. Safety valve structural length
11. Valve structural length tolerance
12. Butt-weld valve structural length
13. Wafer valve structural length
14. Internal thread valve structural length
15. External thread valve structural length
Valve structural length American data:
1. American ASMEB16.10-1992 standard
American ASMEB16.10-1992 standard applies to flange-end and butt-weld valves, but not to socket-weld valves
Valve. British data on the structural length of valves:
The British BS2080-1989 standard specifies the structural length of flanged and butt-welded valves.
German data on the structural length of valves:
The structural length of flanged valves
The structural length of flanged valves specified by the German DIN3202-1999 standard.
2. Structural length of butt-welded valves
The structural length of butt-welded valves specified by the German DIN3202-1999 standard.
3. Structural length of wafer-type valves
The length l in the figure is the structural length of the valve. This structural length is the same for both unlined and lined valves. If the lining eliminates the need for a special seal, the size l can exceed 2mm.
4. Structural length of internally threaded valves
French data on the structural length of valves
The structural length of flange-connected steel gate valves, butterfly valves, check valves, plug valves,
ball valves, stop valves and copper alloy gate valves, stop valves and check valves specified in the French NFE29-305-1999 standard is the same as ISO5752-1999 and
GB/T12221-1989.

Japanese data on the structural length of valves:
The structural length series code of valves specified in the Japanese JIS B2002-2000 standard.
When the flange sealing surface is different, its structural length needs to be adjusted.
For valves with flange connection and butt-wafer connection (flangeless), nominal pressure below 40K and PN nominal pressure series, the structural length allowable deviation is as specified in the table.
For valves with butt-welded connection and nominal pressure above 63K, the structural length allowable deviation is as specified in the table