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Old 04-20-2012, 03:15 AM   #1
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Default gas solenoid valve questions

Posted this in morebeer as well to get as much info as possible, thanks

Sorry guys been asking alot of questions lately! Ok, I am building a brutus type system and have purchased one each of the asco 8210g15 and a g37. The g37 is what lonnie used for the brutus. I am now realizing the min pressure for these is 5psi to operate and I will be using low pressure propane to fire two blichmann burners. Lonnie shows to be using a low pressure regulator,but wouldnt that pressure be too low to operate the valves? So what I am missing here? Also some quick searches showed the stc 2w160 valves also being used in these systems for much less money, and they show vacuum to 150psi. Does vacuum mean 0psi or something else? Hope all this makes some sense, please let me know what i am up against here, thanks in advance. I wouldnt bother me at all to go ahead and order the stc valves if I need to, so I get this thing put together.Nightbrew

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Old 04-20-2012, 11:32 AM   #2
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The STC 2W160 valves work well with both low and high pressure applications and have been used by others here. A safer alternative for low pressure is the honewell VR8200 standing pilot gas valve and pilot burner, about $80 for all the parts needed per burner.

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Old 04-20-2012, 12:41 PM   #3
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Thanks, I have to nitride element electric pilots that I was going to mount to burners. Would this and the stc valve not be a safe solution?

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Old 04-21-2012, 01:37 AM   #4
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The nitride ignitors will light the burner, but not using the ignition module to control ignition and check for flame is just rolling the dice, you might lick out and nothing happens, or get blown up if it goes wrong. Nitride ignitors are meant for steady flame size, protected draft free applications in heating and appliances, not open brewing systems where ignition would be chancy with adjustable burner flame levels and propane tanks going empty.
I have seen a number of darwin award applications of these on brew systems and wonder how lucky those folks will be when a boil over kills an ignitor, or the burner is turned down and the valve opens without ignition happening and no safety shutdown happens.
As much trouble as they are to install, the pilot burners with thermocouples or flame rods are the most reliable method of insuring that there is a flame present to light the burner when gas is present.

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Old 04-21-2012, 02:03 AM   #5
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Can I run one of these honeywell valves off my love temp controllers? Also none of the honeywells show 110-120vac,just 24vac, does this mean I have to buy some sort of transformer? Thanks kladue, ive noticed your expertise on this subject from other threads

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Old 04-21-2012, 02:32 AM   #6
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Also, does a honeywell 8200 come with a pilot burner and everything I will need or will I need to buy some other parts?

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Old 04-21-2012, 02:49 AM   #7
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Valve

and igniter/pilot

Transformer

This is expensive but safe and reliable. Very easy to install and use. For us, it's a liability issue. Dead brewers write poor reviews...
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Old 04-21-2012, 02:52 AM   #8
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I'm not so sure cutting corners using solenoid valves etc. is that much less expensive. I know the setup we use if far less expensive than the ER

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Old 04-21-2012, 02:58 AM   #9
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The parts needed are a
VR8200 gas valve http://www.pexsupply.com/Honeywell-VR8200A2132-1-2-24-Vac-Standing-Pilot-Gas-Valve-11588000-p
Q314 pilot burner http://www.pexsupply.com/Honeywell-Q314A4586-Honeywell-Q314A4586-Pilot-Burner-4113000-p
and a thermocouple http://www.pexsupply.com/Honeywell-Q390A1046-24-Thermocouple-1721000-p

To power the valves a 120-24VAC transfomer with 75VA rating for 2-3 valves http://www.pexsupply.com/Honeywell-AT175A1008-Foot-mounted-120-208-240-Vac-Transformer-w-9-in-Lead-Wires-75VA-11016000-p
A 40 VA will operate 1 valve all day, and 2 for short time, but heats up if running 2 for very long. You switch the 24VAC with the controllers and the transformer stays energized all the time. Here is an example diagram using Love TS controllers https://picasaweb.google.com/kevin.ladue/PanelWiringDiagram#5507979690350514498.

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Old 04-21-2012, 03:40 AM   #10
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Am I thinking of this wrong or couldnt I just use the temp probe from my love controller into a thermowell that I already have? Thanks again guys

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