Bend in Pipe

[HUGH12345]

Hello friends:

i need one please.

I need information about, of which is the minimun bending in pipe of carbon steel, depending your diameter.

Thanks for your help.

HUGH.

[liewnh]

There are many factors limiting the bend radius of a pipe. Are you looking for piggability or code compliance?

NH Liew

[A.Venugopal]

For process pipes the short radius bends will have R= 1D. In boiler super heaters/economisers tubes are bent even to R=0.5D to make platten surface. This of course is for small dia process piping /tubing. For large dia cross country piping/ water works piping Mr Liew has already answered.

Best regards

Venugopal

[HUGH12345]

There are many factors limiting the bend radius of a pipe. Are you looking for piggability or code compliance?

NH Liew

Thanks for your interested.
I am interested about what you say the piggability.

the lines, that i am building needed this facility.

Thanks for your help.

hugh.p

[jhameeh]

Some company use 5D Hot Bend for piggability of pipeline (e.g. API 5L). For Cold Bend you have to use 40D, For Elastic Bend some company use 500D as minimum, but normally you need to calculate this base on stresses. I f you could use Cold Bend instead of Hot Bend, its better because of costing issues.

Regards..

[A.Venugopal]

Friend,

Should you be still needing some more support than the above knowledgeable answers , I shall suggest you to read pages 48 and 49 of " Pipe line Rules of thumb Hand book ". There is a detailed calculation with a workout example . In case you have no access to that book and if you feel that further reading will help you, please revert back I will arrange for these two pages.

Best regards

venugopal

[himanshu_me040@yahoo.co.i]

Dear Venugopal i need these two pages please.

Regards,
Himanshu

[himanshu_me040@yahoo.co.i]

Dear Venugopal Sir,
I am yet to receive those pages.kindly share it or send me on himanshu_me040@yahoo.co.in


Thanks in advance.

Regards,
Himanshu Pandey

[A.Venugopal]

Dear Mr Himanshu Pandey,

I am sorry for the delay. I am out of station and arrange for copy of the information sought on return. However in this forum or elsewhere I remember having seen the whole of the book uploaded by some one . Did you run a search in this forum

Best regards

Venugopal

[kafmaidi]

here is the link for the book -->

[link Point to another website Only the registered members can access]
cheers!