| Traditionally when system
requires threaded and welded connections, these fittings are widely |
| used. Dk pipe fittings are
designed and manufactured to the standards of ASME B16.11, ASME |
B16.14, JIS B2316 and some
other standards.
Based on ASME B16.11-1996 these fittings are classified ; |
| |
| Class 2000, 3000, 6000 for
threaded end fittings |
| Class 3000, 6000, 9000 for
socket-weld end fittings |
| |
| The fitting class has
relation to Schedule No. and Wall designation of pipe for calculation
of ratings as below table. |
| |
