Helium SCUBA

Caribbean Dive shops Helium SCUBA Storage Tank 242 Cubic Feet Caribbean SCUBA

For a storage tank of 242 Cubic feet @ 2015 PSI, and a desired 33% of Helium: fill the 13 SCUBA Diving Tanks (80 Cu. Ft. @3000PSI) to the pressure in the first Orange background. Ex: the first 4 shown are 999 and the fifth 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 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.

2015	242	3000	80	33.3	999	215.4	1793	2015	242
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		Ops Tanks #2		Fill ops to:
		psi	Cu. Ft.	%	PSI

		3000	80	33.3	999	188.7	1571
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		Ops Tanks #3		Fill ops to:
		psi	Cu. Ft.	%	PSI

		3000	80	33.3	999	162.1	1350
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		Ops Tanks #4		Fill ops to:
		psi	Cu. Ft.	%	PSI							Storage #2 drops to:
												Cu.Ft.	PSI
		3000	80	33.3	999	135.4	1128
*****************************************************************************************************										**************************************
		Ops Tanks #5		Fill ops to:				Ops Tanks #5		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	30.76	922.8	110.8	923	3000	80	33.3	999	240.0	1998
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		Ops Tanks #6		Fill ops to:				Ops Tanks #6		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	25.17	755.1	90.7	755	3000	80	33.3	999	233.5	1944
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		Ops Tanks #7		Fill ops to:				Ops Tanks #7		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	20.595	617.9	74.2	618	3000	80	33.3	999	223.3	1859
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		Ops Tanks #8		Fill ops to:				Ops Tanks #8		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	16.85	505.5	60.7	506	3000	80	33.3	999	210.1	1750
*****************************************************************************************************										**************************************
		Ops Tanks #9		Fill ops to:				Ops Tanks #9		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	13.795	413.9	49.7	414	3000	80	33.3	999	194.5	1620
*****************************************************************************************************										**************************************
		Ops Tanks #10		Fill ops to:				Ops Tanks #10		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	11.28	338.4	40.7	339	3000	80	33.3	999	176.9	1473
*****************************************************************************************************										**************************************
		Ops Tanks #11		Fill ops to:				Ops Tanks #11		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	9.239	277.2	33.3	277	3000	80	33.3	999	157.7	1313
*****************************************************************************************************										**************************************
		Ops Tanks #12		Fill ops to:				Ops Tanks #12		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	7.56	226.8	27.2	227	3000	80	33.3	999	137.1	1141
*****************************************************************************************************										**************************************
		Ops Tanks #13		Fill ops to:				Ops Tanks #13		Fill ops to:
		psi	Cu. Ft.	%	PSI			psi	Cu. Ft.	%	PSI

		3000	80	6.186	185.6	22.3	185.6	3000	80	32.3	969	116.2	967
*****************************************************************************************************										**************************************

Helium SCUBA Diving Home Helium SCUBA Tank Filling Data Ex:1

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