nozzle flange calculation

Malyl · **Joined:** Tue Oct 03, 2006 7:01 am **Posts:** 55

Dear All!
Vessel is designed in accordance with ASME VIII-1. Nozzle flange is made of SA-105 mat. with dimensions in accordance with ANSI B16.5 (8"-150lbs). There is spiral wound in accordance with ANSI B16.20, bolt are also in accordance with ANSI, material SA-193GrB7.

The question is do we need to verify geometry of standard nozzle flange in accordance with App. 2?

Any suggestions welcome.
Regards,
malyl

sanjeev_shukla70 · **Joined:** Wed Apr 18, 2007 2:05 pm **Posts:** 260

Malyl,

Standard flanges to ASME B 16.5 need not be designed as per Appendix 2. If try to do analysis, in most of the cases it will fail.

Regards

Malyl · **Joined:** Tue Oct 03, 2006 7:01 am **Posts:** 55

Is there any clear statement in ASME or ANSI that there is no requirement for calculation of standard ANSI flange?

regards,

sanjeev_shukla70 · **Joined:** Wed Apr 18, 2007 2:05 pm **Posts:** 260

Please refer UG 44 which allow use of B16.5 flanges.

Regards

nozzle flange calculation

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