Explaining the Slow Low Water Cutoff Test - Boiling Point

The safety system in your boiler is your last line of defense, are you sure it works? Jeff Barto, a Boiler University Instructor, talks today about the slow low water cutoff test to confirm that your low cutoff is working.

Running a boiler without water is a certain disaster. The low water cutoff on the boiler makes certain that the water never drops lower than the operating limit without stopping the burner. Watch as Jeff describes what goes into testing the cutoff.

Key Words:
Slow Low Water Cutoff Test
Boiler Safety
Steam Education

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[christopherbarrett]

This teaching video is awesome. Thank you

[georgechery]

Reason I'm asking for these explications is because I have a practical exam walk through for a high pressure engineer exam coming up and wanted to see what videos of yours that I can watch to help me out by better understanding the boilers, I have a few other video requests if your able to help out, thanks
You

[georgechery]

These will be all the parts I'll be tested on
The Rundown
1. Cold Boiler Start up
2. The ignition sequence
3. Draft, Flue gas, and combustion (Q and A)
4. Hydrostatic Test
5. Accumulation Test
6. Bottom Blow Down
7. Slow Leak Test
8. Evaporation Test
9. Surge/DA Tanks
10. Water Treatment
11. Grease the Pump Motor

[georgechery]

Great video, thanks for that, would you be able to do a boiler accumulation test explication as well, if so that'll be great. One last question, would this video also be considered an evaporation test? If not would you be able to do a video of that also thanks

[patricksmith]

With normal blow down low water cutoff test (as mentioned at 0:30), doesn't the water inside the boiler drop to the same level as in the sight glass when the blow down valve is opened? Trying to understand if there is the same level of risk in creating a low water situation regardless of if conducting blow down low water cutoff test or slow low water cutoff test. Thanks.

[FreshCutFrenchFries]

Is not necessary to have an operator inspect the makeup water line and pump during a low water cutoff test?

[HvacGuy]

What is the recommended intervals for this test?

[TandT]

what is load controller "LR"

[ronalddawson]

How to do a low water cutoff test on a miura LX-100