Helium SCUBA

Caribbean SCUBA shops Helium SCUBA Storage Tank 160 Cubic Feet Caribbean Dive shops

For a storage tank of 160 Cubic feet @ 1800 PSI, and a desired 33% of Helium: fill the 8 SCUBA Diving Tanks (80 Cu. Ft. @3000PSI) to the pressure in the first Orange background. Ex: the first 2 shown are 999 and the third ops tank is filled to 923.4 PSI, etc. The numbers that follow after the storage tank has dropped below the pressure required to get the percent desired, for the first storage tank are not important as you just equalize the empty SCUBA tank with the storage tank (only after the storage tank has dropped below the fill pressure for the desired % Helium). Filling the first tanks slowly will minimize heating which can cause a false (High) reading.

Then use the second storage tank to top off the tanks not at 33%.

When finished with the Helium fill the tanks to 3000 PSI with standard air. Always check the finished tanks with Oxygen and Helium Analyzers to verify fill and use Mixed gas computers properly adjusted for the mix indicated for SCUBA diving. If you partial fill with Helium don't mention it to your dive shops just let the dive shops top you off with air and then analyze it yourself.

Storage tank		Ops Tanks #1		Fill ops to:		Storage drops to:		Storage tank #2
PSI	Cu. Ft.	psi	Cu. Ft.	%	PSI	Cu.Ft.	PSI	PSI	Cu. Ft.

1800	160	3000	80	33.3	999	133.4	1500	1800	160
*****************************************************************************************************
		Ops Tanks #2		Fill ops to:
		psi	Cu. Ft.	%	PSI

		3000	80	33.3	999	106.7	1201
*****************************************************************************************************
		Ops Tanks #3		Fill ops to:				Ops Tanks #3		Fill ops to:		Storage #2 drops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI	Cu.Ft.	PSI

		3000	80	30.78	923.4	82.1	924	3000	80	33.3	999	158.0	1777
*****************************************************************************************************										**************************************
		Ops Tanks #4		Fill ops to:				Ops Tanks #4		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	23.68	710.4	63.2	710	3000	80	33.3	999	150.3	1691
*****************************************************************************************************										**************************************
		Ops Tanks #5		Fill ops to:				Ops Tanks #5		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	18.2	546	48.6	547	3000	80	33.3	999	138.2	1555
*****************************************************************************************************										**************************************
		Ops Tanks #6		Fill ops to:				Ops Tanks #6		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	14	420	37.4	421	3000	80	33.3	999	122.8	1381
*****************************************************************************************************										**************************************
		Ops Tanks #7		Fill ops to:				Ops Tanks #7		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	10.78	323.4	28.8	324	3000	80	33.3	999	104.8	1178
*****************************************************************************************************										**************************************
		Ops Tanks #8		Fill ops to:				Ops Tanks #8		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	8.3	249	22.1	249	3000	80	32	960	85.8	965
*****************************************************************************************************										**************************************

Helium Nitrogen Oxygen SCUBA Diving

Helium SCUBA Diving Home Helium SCUBA Tank Filling Data ex:2

SCUBA Clubs like Pacific Coast Divers and Illinois Divers recommend Helium as a substitute for some of the Nitrogen and Oxygen in Air.

Caribbean Dive shops with Helium coming soon for Tortola, Saba, Saint Croix (St. Croix), Aruba, Dominica, Curacao, Saint Lucia and Barbados