I posted this under DIY originally and thought I would try my luck here. I just finished a Brutus 10 style brew stand with banjo burners (Bg-14). It is automated with Honeywell 8200 valve and standing pilot lights. The problem is that when the controller shuts the burner off I get a loud pop. Almost like a back fire. Didn't know if anyone else was experiencing this? These are run on low pressure (11").
I also have a needle valve to turn down the flame when mashing but it doesn't seem to light like it should with the needle valve turned more than half off.
Location: Turner, Oregon, Oregon most of the time now
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The burner "pop" when shutdown is entirely normal, fire transfers into the inside and lights the remaining fuel/air mix with a audible pop.
A more important suggestion is to move the pilot burner into the wedge shaped opening in the burner casting. This has proven to be the optimum placement for both ignition and durability as most of the pilot hardware is shielded from the main burner flame heat. All the pilot flame has to do is clear the casting and pass over one of the openings. An easy method of elevation setting is to place a flat piece wood or metal on top of burner, and raise pilot burner up until it touches. Test fire the pilot and make final adjustment to get flame over but not touching burner casting.
Here is a link to a build with pilots mounted inside burner http://www.homebrewtalk.com/f51/sing...04/index5.html