I couldn’t locate a series #. The closest I could read was a 50 or 60, but I couldn’t find the term series.
Thinking about the possible gas flow makes me think that may be my problem. The noise it makes when the burner goes out might indicate the high pressure of the flow & the resulting poofing sound might be the reason the pilot goes out. Sudden burst of pressure. Is that a possibility ? In any case, I’m going to slow the gas flow & I’ll let you know the result. And by the way, THANK YOU so much for just being available to give the advice.