Why is a weep hole provided below the vent outlet pipe of the safety valve?
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:victory: As the title suggests! What is a lacrimal pore?
It is to divert the rainwater into the outlet pipeline
The tear hole is a small hole created intentionally at the bottom of the pipe, with a diameter generally ranging from φ6 to φ10; its purpose is to allow rainwater from the air in the outlet pipe of the safety valve to be drained. Reduce the back pressure of the safety valve.
It is also to prevent the accumulation of fluid from preventing its drainage and thus creating a liquid seal, which could lead to the failure of the safety valve
When combined, it becomes more accurate.
I think it’s to remove the accumulated liquid; it could be rainwater, or liquid that has flowed back from the main pipe.
The tear hole is a small hole created intentionally at the bottom of the pipe, with a diameter generally ranging from φ6 to φ10; its purpose is to allow rainwater from the air in the outlet pipe of the safety valve to be drained. Reduce the back pressure of the safety valve. It is also to prevent the accumulation of fluid from preventing its drainage and thus creating a liquid seal, which could lead to the failure of the safety valve
:Lol, just look at the way the drain pipe of the safety valve is installed in the drawings and you’ll know
HG 20549-1998 Regulations for the Design of Pipeline Layout in Chemical Plant Equipment – there should be explanations; it seems to be mentioned in the typical safety valve design
The statement that fluid accumulation should be eliminated to prevent the safety valve from being under pressure is correct.
There is a lot of information on this in the pressure pipeline training manual; please read that book carefully – you will gain a lot from it
Ensure that the water inside is drained in a timely manner to prevent freezing in winter, which could render the safety valve ineffective