Not getting propane in RV -- bad regulator?
So I have a 22 foot KZ MXT22 Toy hauler. Pretty standard type of travel trailer, and it has 2 20# propane tanks on the front. again, fairly standard setup, the tanks both have pigtails that go into a ...
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DiskDoctr wrote:
Modern propne tanks have a safety that shuts them off if too fast a flow is detected (it assumes you have a broken line or other major line failure).
If you open your tank valve too quickly, the initial rush of gas to fill the empty lines often triggers this safety. It does not usually clear itself. rather, you must turn off the valve, wait a few minutes, then open it S-L-O-W-L-Y. Just a crack and sneak it open until you hear a type of click as the line is pressurized.
Actually the cylinders have an OPD (overfill protection device) that shuts off when filling at 80% capacity
The 'excessive flow device' is in the acme nut fitting on the pigtail hose that connects to the cylinder. It's a 'ball' in the check valve that needs equal pressure on both sides to remain open. If you open cylinder valve too quickly it can close due to high line pressure on one side (inlet) of the ball check valve.
If a leak occurs downstream (broken line/hose....hose melting due to fire etc.) the pressure downstream will be lower than the pressure at cylinder and the ball in the check valve will close stopping flow of propane.
