ASME B31.3 Applied to Pumps 1

[AndyChE]

In designing an ASME B31.3 piping system, are pumps considered an unlisted component (since they do not have a standard listed in Table 326.1)? As such would they have to have design calculations consistent with the design criteria of the code (i.e. section 304)?

I have a client who wants me to specify that my pumps are in compliance with B31.3, but I have never heard of this before.

 

[metengr]

No, pumps are not under the scope of B31.3 period. If you want a specific section to reference, see ASME B31.3, Section 300.1.3 and I quote;

... 300.1.3 Exclusions. This Code excludes the following:

d) pressure vessels, heat exchangers, pumps, compressors...

 

[AndyChE]

Fantastic. Thanks for the help. It didn't sound right, but I didn't think of the exclusion immediately and I am new to B31.3.

I am also going to assume that "other fluid handling or processing equipment" would apply to things like rotary valves, filters, and anything else under the sun that isn't pipe.

 

[stanweld]

In line filters can be and are often designed to B31.3.

 

[AndyChE]

In-line filters make sense. I can understand in-line components like filters, fittings, and valves, but I don't know how I could apply it to rotary valves, roll compactors or other things like that.