Design of boiler blowdown piping

[yama21250]

Does boiler blowdown piping need to have sweep elbows (3 x radius) or double 45* elbows? I have some info from a boiler inspector requesting this on our blowdown piping but can not find any documentation to support this.

Thanks!

 

[mk3223]

May check the AMSE B31.1 Power Piping Code for the design requirements of the Boiling blowdown piping for your system.

 

[KevinNZ]

B31.1 Section 122.2 has a should statement for 3D pipe bends.

 

[chicopee]

"...should..." and "must" are two different animals.

 

[pmover]

From 2016, B31.1 Section 100.2
should: “should” or “it is recommended” is used to indicate that a provision is not mandatory but recommended as good practice.

suggest using good engineering judgement as you likely know the overall system layout and requirements.