Same parameter Different Pressure 5220 HP gun, HVOF

[Hoon Lee]

Hello everyone

I am adjusting to the JP equipment of Praxair.

I have one question.

"The parameters are the same, but the pressure is different."

The pressure increased by 10-20% from the usual pressure.
I know that when there is a problem with the stabilizer, the above problem occurs.

So, I changed the stabilizer to a new one.
But the problem has not been solved.

I also changed the chamber to a new one.
But the problem has not been solved too.

If anyone has had similar experience regarding this, I would appreciate it if you could let me know what to check.

[demionkrishan]

Dear Hoon Lee,
I think your question is about Combustion chamber Pressure, basically JP System can produce up to 120 Psi. If you are getting above 90 Psi will be fine for most of the coatings. As you already changed Stabilizer and Chamber, just check with Combustion pressure tube and Pressure sensor.

Regards,
DK

[Hoon Lee]

Dear Hoon Lee,
I think your question is about Combustion chamber Pressure, basically JP System can produce up to 120 Psi. If you are getting above 90 Psi will be fine for most of the coatings. As you already changed Stabilizer and Chamber, just check with Combustion pressure tube and Pressure sensor.

Regards,
DK

Thank you for your advice.

I'm not familiar with this equipment, so I didn't look at Combustion Chamber Pressure.
I'm not sure, but I think it's similar to the past.

O2 pressure and fuel pressure are different from the past.
I'm checking with the equipment company why it came out differently from the past.

If I know anything, I'll post it again in the future.