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I just bought a 5.5 hp gas rigid air compressor. Should the steel braded line coming from the compressor to the tanks get hot after running for only a few minutes? Also the bleeder valve at the tanks gets very hot is this normal? Thanks
The hot line from the compressor to the tank is perfectly normal. Basic law of physics. When the heat in a certain volume is compressed into a smaller space, the same amount of heat is still there. Since it is in a smaller space the temperature rises proportionally. Ideal Gas law is
where p is the absolute pressure, V is the volume of gas, n is the number of moles of gas, and T is thermodynamic temperature. The gas constant has the same units as molar entropy.
For both sides of this equation to remain = as pressure rises, temperature has to rise as well.