our latest steamer (gerry gill)

gerry gill

these are hydro level pump control probes..one opens a circuit when the water reaches its top probe, the other closes a circuit when the water reaches its top probe..the arrangement can be about anything desired..we have it set where the top most probe opens the circuit..this is the operating limit..next down is the top probe of the other unit, it closes when water reaches it..its the trigger for the low fire gas valve..next down is the lower probe of the latter mentioned unit..its the ''release'' probe to disengage low fire and reactivate high fire..next down is the lower probe of the former mentioned unit..its the release probe for that unit so that when the limit probe had activated, this probe releases that activation bringing the boiler back on..so as the boiler pressure starts to rise, it pushes water out of the reservior, up past the lower probe, up past the second probe, when the pressure reaches the third highest probe, it energizes the low fire valve, if pressure were to drop, when the water reaches the second probe it disengages the low fire valve, restores high fire, if the pressure didn't drop when low fire was engaged, but continued to climb anyhow, it would hit the fourth probe which shuts off the boiler, the water then falls until it clears the first probe, which restores the boiler to operation...very accurate..you space your tees basesd upon 1.75'' per ounce of desired pressure..

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gerry gill

our latest steamer

is on a vapor system and incorporates Steve's latestest invention..we call it the Pajek Electronic Pressure Controller..it uses a reservior and a sight tube coupled with water column and electronic probes to activate two stage firing and also the operating limit.

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ttekushan_3

sight glass envy

Wow.

So let me get this right. The operating pressure points are controlled by the position of the sensors on the height of the column. Why, how is someone supposed to come along and crank the pressure up and screw up the system? I suppose its pretty precise, too.

You guys are a bunch of Steam Subversives, aren't you?

-Terry

Steamhead (in transit)

Very Nice

And Sweet!

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gerry gill

its dead nuts precise..

we were really disappointed lately with the calibration on the honeywell units..any of them..so Steve said ''screw it'' and came up with a better mouse trap..remind you of anything Terry? like a Mouat gauge.

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gerry gill

thanks Gordo.

were trying one out on a one pipe system were almost done with..we will let you know if it works as well on one pipe as it did on vapor.

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Steamhead (in transit)

You guys need

a good patent attorney! Get it patented as soon as you can.

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gerry gill

Hi Frank,

Steve didn't want to patent it..he didn't think it would sell enough..it is more expensive to do this way..but the accuracy is worth every penny i think..

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bob_46

What happens

when the air vent on the top of column plugs up?

gerry gill

it shouldn't but,

if so the boiler would stay in high fire, and shut off on the factory OEM pressure control..we didn't delete anything from the factory, just added to it..we only put an air vent on it as its in front of the boiler and was a bit concerned if the probes failed, hot water could blow out at someone..one were doing now will not have an air vent on it as its behind the boiler in a corner of the room..instead of an air vent one could also turn a pipe toward the floor also..

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Brad White_194

High Art

Kind of makes one weep openly, you know?

That controller column is one for the books- I will have to diagram it. In fact, I am working on the design side of a 1915 Webster vapor system now and this may give a level of security and operating simplicity this system deserves, to bring it back into the 8-10 ounce range.

Your comment re: Honeywell calibration, do you mean the vaporstats?

Steamhead (in transit)

Vaporstat calibration

We also have found that the later style Hg vaporstats do not work below 6oz/in2. We only have one of the non-hg vaporstats in the field, and it is in the "high" range.

The older style Hg vaporstats, the ones with the bulbous chamber underneath, do seen to work in the lower ranges. When we find then, we save 'em!

The Hg 0-4psi vaporstats are also dodgy in the lower ranges (below 2 psi). We don't know about the non-Hg ones.

Are these the same problems you are finding, Mr Gill?

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DanHolohan

That's wonderful!

Thanks for sharing it with all of us. Can you take us through the operating cycle so that everyone understands? Thanks.

gerry gill

Hi Brad ,yup, its the vaporstats

that have been giving us such grief with accuracy..this device is simple, dead nuts accurate, but more expensive..but when accuracy is desired cost takes a back seat.

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gerry gill

Hi Gordo, yes

and we bought some of the new non mercury ones and they were just as bad.

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steve pajek

vaporstats

Hi, eveyone and thanks for your compliments. Yes we were referring to the inaccuracy of the vaporstats. Mouat Systems are popular vapor systems around here. Moaut designed his systems to run at 3 ounces or less at the boiler and these vapostats were not accurate below say 8 ounces. So we came up with something more accurate to help make these systems run as they were designed.

Steamhead (in transit)

Outstanding

Bringing Steam Heat into the 21st century!

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DanHolohan

Beautifully done, Gerry.

Thanks!