Siphon Tube on Pressure Gauge
Posted: Sat Aug 11, 2012 1:22 am
Hey Guys
I have a question about siphon tubes. Is the idea that there will be a slug of water in between the gauge and the steam and that it resides in the siphon tube ? I have two options for my tube. the first one looks like this _o_ and the other one looks like this _ol .
If I use the first one in the opposite orientation than than it is shown above, with the loop "down" i can see how it would act like a trap and protect the gauge from live steam. If I use it in the orientation as shown above it seems like any condensate "plug" will just drain back to the boiler and the gauge will be exposed to steam.
I would like to use the second option in the orientation shown above, coming out, making a loop upwards, and then finishing poiting upwards. My gauge will mount handsomely on that set up. As I look at it though I dont see how it will protect the gauge from live steam.
I have found two classic old gauges and had them calibrated. I would really not want to damage them.
Advice ?
jon
I have a question about siphon tubes. Is the idea that there will be a slug of water in between the gauge and the steam and that it resides in the siphon tube ? I have two options for my tube. the first one looks like this _o_ and the other one looks like this _ol .
If I use the first one in the opposite orientation than than it is shown above, with the loop "down" i can see how it would act like a trap and protect the gauge from live steam. If I use it in the orientation as shown above it seems like any condensate "plug" will just drain back to the boiler and the gauge will be exposed to steam.
I would like to use the second option in the orientation shown above, coming out, making a loop upwards, and then finishing poiting upwards. My gauge will mount handsomely on that set up. As I look at it though I dont see how it will protect the gauge from live steam.
I have found two classic old gauges and had them calibrated. I would really not want to damage them.
Advice ?
jon