Draft Indicator/Gauge
Posted: Mon Jun 15, 2020 3:02 pm
I put a small fitting on my boiler's bonnet that goes via a long copper pipe to a Magna-Helic Gauge, measuring -1 to 1 inch pressure of H2O.
I installed it so the fireman could notice changes in air movement through the boiler.
The stack is now 5ft+bonnet which helps the draft naturally.
There is manual steam blower, which is the strongest effect, when it is being used, showing full range on my gauge. (Venturi end)
There is optional engine exhaust puffer - which works so well It is almost always used. The puffer effect is a function of the boiler pressure and how hard the engine is running. (Spiral, High Volume Full-Cone, 0.44" Orifice end)
Definitely on larger Steam Ship's Boiler rooms I have seen draft indicators/gauges.
Anyone else measuring their Boiler Draft?
-CB
I installed it so the fireman could notice changes in air movement through the boiler.
The stack is now 5ft+bonnet which helps the draft naturally.
There is manual steam blower, which is the strongest effect, when it is being used, showing full range on my gauge. (Venturi end)
There is optional engine exhaust puffer - which works so well It is almost always used. The puffer effect is a function of the boiler pressure and how hard the engine is running. (Spiral, High Volume Full-Cone, 0.44" Orifice end)
Definitely on larger Steam Ship's Boiler rooms I have seen draft indicators/gauges.
Anyone else measuring their Boiler Draft?
-CB