Helium

[123hopeitspainfree]

Does anyone know if the helium tanks sold at party stores like the brand balloon time will work? Someone said something about some being filled with regular air and not full helium thanks in advance

 

[LaVieEnRose]

Won't work since they're all diluted with oxygen at approximately the same amount our atmosphere contains oxygen. It's

 

[GasMonkey]

Nowadays the way to go is mainly Nitrogen, since it's a gas compatible with all CTB setups.

 

[orca87]

Nowadays the way to go is mainly Nitrogen, since it's a gas compatible with all CTB setups.

How is Nitrogen better than Helium?

 

[GasMonkey]

Demand valves are designed to work with Air which has basically the same weight as Nitrogen, so it's the gas of choice for setups with demand valves is Nitrogen. Helium is much lighter than Air so you don't know how the demand valve would perform with it.

For the ExitBag Helium is perfect since it has a huge weight difference with CO₂.

 

[orca87]

Demand valves are designed to work with Air which has basically the same weight as Nitrogen, so it's the gas of choice for setups with demand valves is Nitrogen. Helium is much lighter than Air so you don't know how the demand valve would perform with it.

For the ExitBag Helium is perfect since it has a huge weight difference with CO₂.

Aren't they special valves for helium?

If not exit bag, you're talking about flooding a room with Nitrogen?

 

[GasMonkey]

Aren't they special valves for helium?

There are no demand valves for Helium, all demand valves are for Air.
A demand valve is a valve that pumps gas only when you need it.

If not exit bag, you're talking about flooding a room with Nitrogen?

No, the other possible implementations are SCBA (works on-demand) and EEBD Hood (works on constant flow like the ExitBag).
Flooding a room is not viable, you would need a HUGE volume for that. The only similar documented case is a guy who used 5 Liquid Nitrogen tanks in a car.

 

[orca87]

There are no demand valves for Helium, all demand valves are for Air.
A demand valve is a valve that pumps gas only when you need it.


No, the other possible implementations are SCBA (works on-demand) and EEBD Hood (works on constant flow like the ExitBag).
Flooding a room is not viable, you would need a HUGE volume for that. The only similar documented case is a guy who used 5 Liquid Nitrogen tanks in a car.

Thanks a lot!

 

[Ki_Nam]

100% Argon works too if you can't find Nitrogen.

 

[booplesnoot34]

100% Argon works too if you can't find Nitrogen.

Where does one find Nitrogen or Argon?