Verification was conducted at a paint manufacturer (listed company)
- 徳永 隆之
- Sep 26
- 1 min read
Second demonstration test results for the operating pressure of the DeCarbo trap.
To evaluate the effect of changes in operating pressure on the DeCarbo trap, a second test was conducted. The test location was the same as the previous test, and the pressure was measured at 0.6 MPa in the morning and 0.2 MPa in the afternoon.
Morning results:
• Only measure DeCarbo traps
Drainage rate: 6.6kg/h
• Compared to existing traps: 82% reduction in leaking steam
• Annual cost savings: Approximately ¥337,500
Afternoon results:
• As the pressure drops, the amount of condensate (and live steam) discharged decreases.
• Leakage steam reduction rate: 80%
• Annual cost savings: Approximately ¥27,000
In the afternoon test, a significant decrease in condensate volume was observed, raising concerns that steam leakage might increase if the nozzle diameter remained unchanged, as is commonly thought. However, downstream temperature measurements of the trap recorded 91°C, confirming that there was no steam leakage. This demonstrated that the DeCarbo trap can handle large pressure changes and can be used without changing the nozzle.
We would like to thank everyone who attended and cooperated in this test.


