Custom Built Flange as per ASME

[Dilip Palase]

How to design Custom Plate Flange of size above 26 inches as per ASME ?
Service Gas or Liquid having temperature 310 Deg. Cent. and pressure 3 kg/cm.2(g.)

 

[LittleInch]

Is there a reason you can't use asme b16.47?

If not it's asme viii appendix 2

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[refined sweat]

ASME Section 8 provides everything you would need.

 

[JStephen]

First, see what has previously been used and works for your application.
Be aware that there are various "industry standard" flanges that may be more economical to evaluate than just picking random dimensions and trying to make it work.

 

[LittleInch]

Also check out TEMA.

They have standard flanges for low pressure big diameter flanges which may be suitable.

They tend to have a lot of bolts but small flanges.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[jtseng123]

You just get yourself into trouble not using standard flange by many aspects such as custom gasket, bolt size and length, and future maintenance issues.
60" and under, use standard, regardless how small the pressure is. Also need to include equipment pressure from external loads. Check with your pipe stress engineer. Saving nothing by custom design per Appendix 2, but waiting for you is the trouble.
Over 60", custom design with "art" in mind, such as not using too large bolt diameter, watch out bolt spacing, not to wide. Limit gasket width to 1" or less. The largest flange I have designed 120".

 

[Dilip Palase]

Many thanks for the responses from all of you. Shall see ASME Sec. VIII Appendix 2. and TEMA.
Regards,
Dilip Palase.