Any Firemen out there?

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Doug

Member
Jun 26, 2015
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Washington, United States
My son in law is a fireman and has been trying to fill my Omega 75 tank at the fire house using their Hypres fill station.

The way it works, as I’m told, and I’m sure you firemen know, is you open the lower safety drawer to connect the tank (up to 2), close the drawer, and the bar will drop down to lock before it will pressurize.
I have this SCBA Adapter to connect it.

What happens is after it is filled to 4500psi, the fill station has to depressurize BEFORE you can open the drawer to close the Omega tank valve, and during that time, the tank is losing pressure.
The fireman tanks must have one-way valves to prevent this, I’m guessing. This is what they use.

Anyone have any ideas how to make this work? I wonder if there is a one-way air flow adapter that can be screwed to my existing SCBA adapter? The $20.00 refill at the paintball store is getting old and pricy, and they can never get it to 4500.
Thanks, I appreciate any help
 
I wrote up a little procedure on how I fill my tank at my department. I'm not sure if your equipment is the same but hopefully you can make use of it. If your losing air during and after filling it sounds like you didn't close the purge(bleed) valve, it should be built into the system they have, look for it and make sure its closed before you start filling. 
  • Attach fill hose to cylinder
  • check bleed valve closed
  • Check open high pressure fill line
  • Open SCBA cylinder valve
  • Close blast door
  • Verify current SCBA pressure on bottle pressure gauge
  • Open “From bank” valve with lowest pressure
  • Adjust pressure regulator to desired fill pressure
  • Monitor regulator pressure indication on outlet pressure gauge
  • Crack open Fill Valve to start filling cylinder
  • Fill to 4500 PSI
  • If bank is lower than 4500PSI
  • Than close fill valve
  • Close From bank valve in use
  • Open next from bank valve
  • Adjust regulator to 4500PSI
  • Crack fill valve 
  • When bottle pressure reaches 4500PSI
  • Close fill valve
  • Close From Bank valve
  • Close SCBA valve
  • Close high pressure hose valve
  • Open bleed valve
  • Remove SCBA cylinder
  • Open fill valve
  • Open high pressure fill line valve to bleed off system pressure
  • Observe bottle pressure indication decreasing
  • Set regulator to 0
 
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also if you have the valve pictures above with the one way connection, that is just used for connecting the cylinder to the scba pack. You dont mess with that at all during the fill, just screw in the fill hose to the threaded connection on the bottle, make sure the purge valve is closed and then open the valve on the bottle, after you do that you should have the current cylinder pressure indication on the filling equipment somewhere.
 
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"Nuke307"also if you have the valve pictures above with the one way connection, that is just used for connecting the cylinder to the scba pack. You dont mess with that at all during the fill, just screw in the fill hose to the threaded connection on the bottle, make sure the purge valve is closed and then open the valve on the bottle, after you do that you should have the current cylinder pressure indication on the filling equipment somewhere.
Click to expand...
Just re read what you posted, there are no one way valves used on the threaded connections of the older scba cylinders so unless the thing is very new and the company built it without a purge valve you should be ok. The only thing I can think is happening is you left the purge valve open. once you're at 4500 pounds close the fill valve and then back off the regulator, then open the door. close your bottle valve and then bleed off the air in the hose so you can disconnect it. Let us know how it turns out!
 
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