Propane haulers

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Shut it off at the source, the trailer( or truck) A leak of any kind is usually pretty serious stuff.

 

@McUzi

 

1. Stop the pump.


2. Stop the leak as far as possible upstream at the source.

If the leak is on your trailer, activate the emergency shutoff on the trailer, there's one on the back right and one at the front left. If your internals are air-operated you will either flip a switch or turn a valve handle. If your internals are cable-operated there will be a handle for you to pull.

If the leak is on the customer's side then go throw the little switch (or plunger) that opens and closes all the vapor-actuated valves in the customer's piping.


3. Block-in all of the other valves that you opened in order to unload.


The colder it is outside, the more condensation you will see coming out the back when you open the bleeder. If your customer is fussy about it then just open the bleeder a little bit so that the cloud won't be quite so big.

 

Every time you finish loading or unloading there’s pressure in the hose between the valves that must be released before disconnecting. Frosted lines are normal pay attention to the tank temperature and outside ambient temperature and always pay attention to wind direction when unloading ( this is really important when hauling NH3 ) sometimes there is some liquid in your hose which makes a bigger vapor cloud when blowing off.

 

Propane is lighter then air. It will raise pretty quick. When it rains it slows it down some. I work with blowing gas all the time. Specially natural gas. If it’s blowing like crazy you are good. It won’t ignite. Well until after you stop it from blowing and the air mixture changed then something may happen if there is an ignition source.