Maximum Gap for a Pipe Guide Support

[Suresh VK]

Hi all,

Im performing stress analysis for a piping system as per ASME B31.3..
Line Size : 48" NPS
Service : Process Gas
Design Temp : 93°C
Design Pressure : 4700 Kpa

My question is, what is the maximum gap i can provide for the Pipe Guides?

 

[pennpiper]

Is the pipe on some kind of "Shoe"? If so please show us a picture or drawing.

Show us a picture or a drawing of the Guide you plan to use.

Sometimes its possible to do all the right things and still get bad results

 

[racookpe1978]

Do you intend this "pipe guide" to PREVENT motion of the pipe side-to-side or vertical, or do you intend the pipe guide to permit only axial movement, and not to restrict perpendicular right-left or vertical movement?

 

[dik]

The width of the guide can be an issue for 'locking action'.

Dik

 

[LittleInch]

What sort of gap?

Horizontal? Vertical?

Depends what you're trying to prevent with the guide?

I've seen anything from 10mm to 50mm.

That's design for you.

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

 

[Riley15]

You should be using Caesar II or a similar software to perform your stress analysis. The software will dictate what gap size will be required. Mainly it depends on geometry, design temperature and, if applicable, wind loading.

 

[MintJulep]

Isn't pipe support spacing one of the outputs of a pipe stress analysis?

 

[XL83NL]

So far, I have interpreted gap as the distance between a support and it's supporting structure (e.g. the situation you get with support lift-off). I havent considered gap as the distance between 2 supports.
If the OP doesnt return, not sure if well find out what he's looking for.

 

[RVAmeche]

At least in Caesar II, the pipe support spacing (and support gap) is user defined. For guided shoes with a gap, it depends on the application but could be 1/16" or 1/8". If you mean pipe support spacing, that's a different matter.