Blowdown pipe erosion
Blowdown pipe erosion
(OP)
Have a surface blowndown line 1" in dia. It tees into a 2" forged steel tee. Boiler pressure is about 100 psi. The eroded spot is directly above the tee and the reducer from 1" to 2" is about 6" prior to the tee. Downstream it leads to a drain. The failure occurred after approximately 18 months. I'm suspecting mechanical erosion, does anyone else have any thoughts on the failure?





RE: Blowdown pipe erosion
RE: Blowdown pipe erosion
Combine this with improved flow path and you will never repair this again.
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P.E. Metallurgy, Plymouth Tube
RE: Blowdown pipe erosion
RE: Blowdown pipe erosion
RE: Blowdown pipe erosion
For several fossil projects, I have seen blowdown piping configured with a sacrificial erosion "target".
Schedule 80 Low alloy material (A335-P22)was commonly used.
316 Stainless steel piping can also be used....
MJCronin
Sr. Process Engineer
RE: Blowdown pipe erosion
RE: Blowdown pipe erosion
MJCronin
Sr. Process Engineer