Reset safety shuttoff, Propane tank, full won't flow

[JDxeper]

I have an relative new 20 lb propane tank, it is full and when hooked in to the system no lp gas will come out.  I suppect that the safety valve is engaged and won't allow propane to flow even if the valve is open.  I know that the safety devise will shut the tank down if no pressure is present, that is if you open the valve with it not connected to a system it will shut off.  Any one have suggestions?   I have connected it to a couple of other things and can't get the propane to flow.  I have bounced the tank a few time with the valve closed and still no results.  How do you reset the safety valve?

[Froggy1936]

hey JD I reccomend taking it to local propane dealer to have it checked or replaced   Frank

[JDxeper]

I found this solution and it worked.

  Propane tanks are commonly used for heating homes and businesses and for agricultural use. These tanks are available in a variety of sizes to accommodate different purposes and uses. The gas flow on propane tanks needs to be monitored and that is why the tanks are equipped with a check valve. Low gas flow or propane leaks could be an indication that the check valve needs to be reset. Check valves can be reset without calling a professional.

The first step in resetting the propane check valve is to turn the valve the shuts off the container. Twist the connection to unscrew it, which will detach the propane tank from the hook up site.
Flip the valves to the highest setting possible if you are using a gas grill, which will get rid of residual pressure or gas that may remain in the lines.
Turn off the grill. If you do not while resetting the valve, it could be dangerous.
Twist the connection in the opposite direction you did to remove it to reconnect the container.
Turn the tank valve switch to the "on" position. Move the lever very slowly, so the gas goes back into the lines and grill slowly. This will help put the tank back in check.

Tips and Warnings
Propane gas leaks can be dangerous and serious because they can possibly lead to explosions. If you do notice propane leaks, you need to evaluate the problem as quickly as possible before problems develop.

My tank now flows.

Besure to open slow for the reset.

[Oz]

Excellent info!

   

[DaveVA78Chieftain]

I meant to post that but was at work and didn't have time.  Glad you got the answer.  The check valve that caused your problem drastically reduces propane flow in case a vehicle is in a accident and the lines are ruptured.  It is triggered by excessive gas flow.  In the case of a system that has no pressure in it (ie: a gas appliance was replaced or serviced), when you open the valve the gas rushes out triggering the safety valve.  So, aloways open the tank valve slowly when system is not pressurized.  You can simply tiurn the valve off, wait one minute then turn it back on slowly to reset it.

Dave