I have an automatic isolation valve (12") on the boiler outlet and at the plant inlet. I am planning to design a flanged connection (1/2") with isolation valves for compressed air. That way my compressed air line is safe from heat and when operator shuts down the boiler, after 6-8 hrs later...
Wow compressed Air is good alternative.
I will definately consider it because it makes sense economically.
Thanks for a great tip StoneCold.!![thumbsup2]
Thanks StoneCold,
I agree with you. I do not need to heat trace vents (since these are high points and water/condensate only collects at low points).
I was exploring if there is any technique used else where other than manual draining.
Thanks for suggestion racookpe1978,
3/4" drain/vent has two isolation valves. I wanted less leaks through vents and drains. but these are manual drains and vents (i.e someone walks to them and open the drain).
Vents are placed at every high point in the line and drains at every low point. (12...
I am looking for information to tackle heat tracing problem on 3/4" vents and drains.
Here is the situation:
12" Process pipe for steam at 1100 F and 2000 PSIG. Total length of pipe is 400ft with many bends because of expansion (pipe expands when heated)
There are many (lets say 50) vents and...
