why watercock opened first after blowing down boiler gauge glass?

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question concerned with marine boiler operation

2006-11-05 19:11:51 · 2 answers · asked by manikandan 1 in Science & Mathematics ➔ Engineering

It is my understanding you do this so any sediment that might be in the lower gage valve will be flushed out.

2006-11-06 00:02:04 · answer #1 · answered by oil field trash 7 · 0⤊ 0⤋

To drain the excess water out of the boiler so it will not get what a lot of people refer to as water logged

2006-11-05 19:23:16 · answer #2 · answered by JUAN FRAN$$$ 7 · 0⤊ 0⤋