Propane Leak
I have a 30 lb LP bottle on each side of my fifth wheel. On the last trip, I returned to the camper to hear what sounded like water spraying out somewhere. It was propane escaping from the device sh...
Forum Discussion
The subject of the high pressure regulator valve failure has come up often in the past. Some have replaced them. Some have eliminated them. Many have questioned the purpose. They are there due to a requirement by the National Fire Protection Association (NFPA) relating to the subject. Here is what the NFPA 1192 Standard on Recreational Vehicles says:
"5.3.11.2 Propane system pressure shall be regulated to a pressure of 30 psi (207 kpa) or less within 60 in. (1.5m) of the container outlet."
So it appears that if the distance from the street side tank to the dual stage change over regulator on the opposite side is greater than 60 inches, that high pressure regulator is required. Since all the trailers are much wider than 60", I would assume it would apply to all that have the two tanks installed on opposite sides of the trailer with the dual stage change over valve on one side. Note that propane tank pressure can be over 200 psi, so that could be over 200 psi across the piping from one side to the other without the high pressure regulator. With the pressure in the cross over pipe the same as tank pressure, the gaseous propane in that pipe could return to a liquid state when flow stopped.
"5.3.11.2 Propane system pressure shall be regulated to a pressure of 30 psi (207 kpa) or less within 60 in. (1.5m) of the container outlet."
So it appears that if the distance from the street side tank to the dual stage change over regulator on the opposite side is greater than 60 inches, that high pressure regulator is required. Since all the trailers are much wider than 60", I would assume it would apply to all that have the two tanks installed on opposite sides of the trailer with the dual stage change over valve on one side. Note that propane tank pressure can be over 200 psi, so that could be over 200 psi across the piping from one side to the other without the high pressure regulator. With the pressure in the cross over pipe the same as tank pressure, the gaseous propane in that pipe could return to a liquid state when flow stopped.
